Medicine Pole Hills: Chadronian, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Anguimorpha informal MPH-1
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Smith 2006 | 7 specimens | ||||||||
PTRM 5375, partial left dentary; 1824, partial right dentary; 5376, anterior left dentary fragment. Newly referred specimens in Smith 2011: PTRM 19212-14, 19461 (jaw fragments). | ||||||||||
Saniwa edura n. sp.
Smith 2006
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Smith 2006 | 12 specimens | ||||||||
PTRM 5379 (holotype), partial left dentary; 5380, partial parietal. Newly referred specimens from Smith 2011: PTRM 19036 (8 teeth), 19155 (3 teeth), 19339 (3 teeth), 19360 (1 tooth), 19375 (7 teeth), 19437 (18 teeth), 19472 (2 teeth), 19516 (2 teeth), 19545 (2 teeth), 19552 (1 tooth). | ||||||||||
Reptilia
- Anguidae
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Diploglossinae informal MPH-1
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Smith 2006 | 12 specimens | ||||||||
PTRM 1807, left dentary fragment; 1823, jaw fragment; 5378, osteoderm. Newly referred by Smith 2011: PTRM 19207 (right maxilla fragment), 19208 (left maxilla fragment), 19209 (right maxilla fragment), 19346 (frontal fragment), 19358 (left quadrate; Figure 77B–D), 19428 (left dentary fragment), 19474 (right maxilla fragment; Figure 77A), 19591? (partial left dentary), 19784 (partial osteoderm; Figure 77E). | ||||||||||
Anniellinae indet.
Nopcsa 1928
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Smith 2011 | |||||||||
PTRM 19129, 19548 | ||||||||||
Anniellinae indet.
Nopcsa 1928
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Smith 2011 | |||||||||
PTRM 19129, 19548 | ||||||||||
Helodermoides sp.
Douglass 1903
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Smith 2006 | 5 specimens | ||||||||
"sp. nov.?" PTRM 1825, left parietal fragment; 5647, 5709, cephalic osteoderms. Further referred specimens from Smith 2011: PTRM 19028 (right jugal fragment), 19549 (partial left jugal; Figure 80). | ||||||||||
Gerrhonotinae indet.
(Cope 1864)
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Smith 2011 | |||||||||
PTRM 19025, 19210, 19419, 19473, 19514, 19592 | ||||||||||
Reptilia
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cf. Peltosaurus sp.
Cope 1873
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Smith 2006 | 10 specimens | ||||||||
PTRM 2606, partial left dentary; 2617, partial right maxilla; 5272, jaw fragment; 5381, right maxilla; 5685, right frontal fragment. New referred specimens from Smith 2011: PTRM 19211 (jaw fragment), 19364 (parietal fragment; Figure 79A, B), 194267 (partial right maxilla), 19427 (jaw fragment), 19470 (left dermarticular; Figure 79C, D). | ||||||||||
Scincoidea informal MPH-1
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Smith 2006 | 2 specimens | ||||||||
PTRM 5359, partial right dentary; 5358, right dentary fragment | ||||||||||
Reptilia
- Xantusiidae
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"Palaeoxantusia" borealis
Holman 1972
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Smith 2006 | 89 specimens | ||||||||
PTRM 2720, partial left dentary; 5360, edentulous left dentary; 5361, partial right dentary; 2074, medial portion of right maxilla; 5284, left dentary fragment; 5288, partial right dentary; 2074, right maxilla fragment; 2713, partial right maxilla; 5298, right maxilla fragment; 5387, right dentary fragment. Newly referred by Smith 2011: PTRM 19024 (partial right frontal; Figure 75J, K), 19026 (partial left mandible; Figure 75L), 19150 (right dentary fragment), 19171, 19172 (partial left maxillae), 19173 (left maxilla fragment), 19174–19179 (right maxilla fragments), 19180 (partial premaxilla; Figure 75A), 19181 (premaxilla fragment), 19182 (partial premaxilla), 19183–19187 (partial left dentaries), 19188, 19189 (left dentary fragments), 19190–19195 (partial right dentaries), 19196–19200 (right dentary fragments), 19201, 19202 (jaw fragments), 19413 (left dentary fragment), 19414 (right dentary fragment), 19415, 19416 (left maxilla fragments), 19417 (right maxilla fragment), 19418 (partial premaxilla), 19439 (left dentary fragment), 19440, 19441 (partial right maxillae), 19442 (right maxilla fragment), 19443 (left maxilla fragment), 19469 (nearly complete left pterygoid; Figure 75G–I), 19477 (partial right dentary), 19478 (right dentary fragment), 19479, 19480 (partial left dentaries), 19481 (partial right maxilla), 19482 (left maxilla fragment), 19483, 19484 (partial left maxillae), 19485, 19486 (left maxilla fragments), 19487 (partial premaxilla), 19488 (premaxilla fragment), 19511 (partial right dentary), 19512, 19513 (right dentary fragments), 19517 (left dentary fragment), 19523 (left frontal fragment), 19528 (partial left dentary), 19529 (partial left maxilla), 19540, 19541 (partial right dentaries), 19542 (nearly complete right maxilla), 19543 (nearly complete right maxilla; Figure 75B–D), 19544 (partial right maxilla; Figure 75E, F), 19557, 19558 (partial left dentaries), 19559 (left dentary fragment), 19560 (partial right dentary), 19561 (right dentary fragment), 19562, 19563 (left maxilla fragments), 19564, 19565 (right maxilla fragments). | ||||||||||
Reptilia
- Colubridae
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Colubridae indet.
Oppel 1811
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Smith 2013 | 9 elements | ||||||||
5 trunk vertebrae (PTRM 19641, 19643-19645, 19717), 4 postcloacals (PTRM 19645, 19646, 19718, 19779) | ||||||||||
Reptilia
- Boidae
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Calamagras weigeli
Holman 1972
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Smith 2013 | 80 elements | ||||||||
1 ?pterygoid fragment (PTRM 19130 - tentatively assigned to this taxon), 1 left dentary fragment (PTRM 19476 - tentatively assigned to this taxon), 68 trunk vertebrae (PTRM 19593, 19594, 19596, 19598, 19600-19602, 19605, 19606, 19610, 19612-19614, 19616, 19617, 19619, 19620, 19628, 19648-19650, 19653-19666, 19673, 19679, 19682-19687, 19691, 19701, 19702, 19708, 19710-19715, 19720, 19722, 19723, 19738, 19744, 19748-19750, 19762-19766, 19768, 19778), 10 postcloacal vertebrae (PTRM 19608, 19609, 19611, 19651, 19680, 19681, 19690, 19709, 19753, 19754) | ||||||||||
Reptilia
- Loxocemidae
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Ogmophis compactus
Lambe 1908
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Smith 2013 | 79 elements | ||||||||
1 parabasisphenoid (PTRM 19350), 1 left quadrate (PTRM 19378), 66 trunk vertebrae (PTRM 19615, 19621-19624, 19626, 19627, 19629, 19631-19640, 19642, 19669-19671, 19675-19678, 19692, 19695-19700, 19703-19707, 19719, 19721, 19724, 19725, 19729-19737, 19739, 19741, 19742, 19745-19747, 19755-19760, 19780-19782), 11 postcloacal vertebrae (PTRM 19625, 19630, 19647, 19672, 19686, 19694, 19726, 19727, 19752, 19761, 19767) | ||||||||||
Reptilia
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Coniophis sp.
Marsh 1892
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Smith 2013 | 6 elements | ||||||||
nomen dubium belonging to Serpentes | ||||||||||
5 trunk vertebrae (PTRM 19505, ?19603, 19652, 19716, and 19743), 1 postcloacal (PTRM 19740) | ||||||||||
Reptilia
- Agamidae
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Tinosaurus sp.
(Marsh 1872)
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Smith 2006 | 1 specimen | ||||||||
synonym of Saniwa | ||||||||||
PRTM 2038, jaw fragment | ||||||||||
Reptilia
- Iguanidae
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Iguanidae informal MPH-1
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Smith 2006 | 9 specimens | ||||||||
PTRM 1822, left dentary; 2605, right dentary fragment; 2743, edentulous left dentary; 5231, partial right dentary; 5334, left dentary fragment; 5352, partial right dentary; 5353, right dentary fragment; 5354, partial right dentary; 5724, maxilla fragment | ||||||||||
= Queironius praelapsus n. gen., n. sp.
Smith 2011
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Smith 2011 | |||||||||
Queironius praelapsus
Smith 2011
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Smith 2011 | |||||||||
Tuberculacerta pearsoni n. gen., n. sp.
Smith 2006
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Smith 2006 | 5 specimens | ||||||||
PTRM 5296 (holotype), left dentary; 1432, left dentary fragment; 5326, right dentary; 5355, left dentary; 1429, right maxilla. Referred specimens from Smith 2011: PTRM 19020 (partial right maxilla), 19021 (partial right maxilla; Figure 72D–F), 19022 (premaxilla; Figure 72A–C), 19023 (partial left postorbital; Figure 73I–J), 19051 (left maxilla fragment), 19052 (maxilla fragment), 19116 (partial frontal; Figure 73E, F), 19135 (partial right ectopterygoid; Figure 73A–D), 19145 (maxilla fragment), 19146 (left maxilla fragment), 19263 (partial right dentary), 19292 (partial right dentary), 19293 (partial left maxilla), 19294 (left maxilla fragment), 19295 (right maxilla fragment), 19335 (partial right jugal), 19411 (right dentary fragment), 19412 (partial right maxilla), 19450 (partial left maxilla; Figure 72G, H), 19532 (partial right maxilla), 19538 (right jugal fragment; Figure 73G, H), 19539 (partial left maxilla), 19555 (left maxilla fragment), 19588 (partial right dentary). | ||||||||||
Iguanidae informal MPH-3
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Smith 2006 | |||||||||
PTRM 5357, partial left dentary; 5178, partial left dentary; 5267, left dentary fragment | ||||||||||
= Oreithyia oaklandi
Smith 2011
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Smith 2011 | |||||||||
(see re-ID entry under Aciprion sp.) | ||||||||||
cf. Aciprion sp.
Cope 1873
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Smith 2006 | 105 specimens | ||||||||
PTRM 5198, right dentary; 2054, left dentary fragment; 2594, partial left dentary; 5202, partial right dentary; 2095, left maxilla fragment; 5401, left maxilla fragment; ?5396, left maxilla fragment | ||||||||||
= Oreithyia oaklandi n. gen., n. sp.
Smith 2011
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Smith 2011 | |||||||||
replaced by Oreithyia oaklandi | ||||||||||
PTRM 5198 (holotype), right dentary. All specimens referred to cf. Aciprion sp. and to Iguanid MPH-3 by Smith (2006a) as well as the following: PTRM 19000 (partial parietal; Figure 63), 19001 (partial frontal; Figure 57), 19002 (partial left maxilla), 19004 (partial premaxilla; Figure 49A–C), 19005 (partial left postorbital; Figure 61), 19006 (partial frontal), 19007 (partial left jugal; Figure 59), 19015 (right prefrontal; Figure 55), 19033 (right ectopterygoid; Figure 53A–C), 19053 (partial left dentary), 19054 (partial right dentary), 19055 (left maxilla fragment), 19056 (dentary fragment), 19058, 19059 (jaw fragments), 19060 (left maxilla fragment), 19062 (partial right maxilla; Figure 51K), 19067 (premaxilla fragment), 19080 (left dermarticular fragment; Figure 70D), 19082 (partial right coronoid; Figure 68), 19084 (left jugal fragment), 19089 (right jugal fragment), 19111 (left prefrontal fragment), 19114, 19115 (frontal fragments), 19133 (partial right ectopterygoid; Figure 53D, E), 19140 (partial left maxilla; Figure 51D–F), 19142 (left maxilla fragment), 19143 (right dentary fragment), 19144 (jaw fragment), 19239 (right maxilla fragment; Figure 51A–B), 19256 (partial premaxilla), 19257–19259 (partial left dentaries), 19260 (left dentary fragment), 19261 (partial right dentary), 19264, 19265 (right dentary fragments), 19266 (right maxilla fragment), 19268–19270 (right maxilla fragments), 19271 (partial left maxilla; Figure 51G–I), 19272 (partial left maxilla), 19273–19276 (left maxilla fragments), 19277 (dentary fragment), 19278 (jaw fragment), 19279 (right maxilla fragment), 19280 (right dentary fragment), 19281 (right maxilla fragment), 19282 (left dentary fragment), 19283, 19284 (jaw fragments), 19285 (left maxilla fragment), 19286 (dentary fragment), 19288, 19290 (jaw fragments), 19291 (maxilla fragment), 19325 (partial right compound bone; Figure 70A–C), 19338 (partial left ectopterygoid), 19381 (frontal fragment), 19397, 19399 (partial right dentaries), 19400 (left dentary fragment; Figure 67A–C), 19402 (partial left dentary), 19404, 19405 (left maxilla fragments), 19406, 19407 (dentary fragments), 19408 (jaw fragment), 19449 (partial left jugal), 19451 (partial right maxilla), 19452, 19453 (left maxilla fragments), 19454 (partial right maxilla), 19456 (jaw fragment), 19462 (partial right dentary; Figure 67D), 19504 (partial left dentary), 19505 (right dentary fragment), 19506 (jaw fragment), 19507 (right maxilla fragment), 19534 (partial premaxilla; Figure 49D–F), 19551 (left dermarticular fragment), 19573 (partial right maxilla; Figure 51C), 19574 (partial left maxilla), 19575 (partial right maxilla), 19576 (partial right maxilla; Figure 51J), 19577, 19578 (right maxilla fragments), 19585 (partial left dentary), 19586 (partial right dentary). PRTM 19334 (partial right squamosal). | ||||||||||
Cypressaurus sp.
Holman 1972
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Smith 2006 | 25 specimens | ||||||||
PTRM 2623, partial left dentary; 5321, dentary fragment. Smith 2011 adds the 2 Iguanid MPH-2 and -4 specimens to this taxon and includes new referred specimens: PTRM 19063 (maxilla fragment), 19085 (partial left jugal; Figure 74G–I), 19215 (partial right dentary), 19235 (left maxilla fragment; Figure 74E, F), 19267 (right maxilla fragment; Figure 74A–D), 19296 (jaw fragment), 19297, 19298 (right dentary fragments), 19299 (left dentary fragment), 19300 (jaw fragment), 19301 (right maxilla fragment), 19409 (right maxilla fragment), 19468 (left jugal fragment), 19494 (right jugal fragment), 19502 (left maxilla fragment), 19509 (partial left dentary), 19550 (partial right dentary), 19556 (right dentary fragment), 19582 (partial right dentary; Figure 74J, K), 19589 (right dentary fragment), 19590 (partial left dentary). | ||||||||||
Iguanidae informal MPH-2
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Smith 2006 | |||||||||
PTRM 2602, right dentary | ||||||||||
= Cypressaurus sp.
Holman 1972
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Smith 2011 | |||||||||
(see re-ID entry under Cypressaurus sp.) | ||||||||||
Iguanidae informal MPH-4
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Smith 2006 | |||||||||
PTRM 2041, partial left dentary | ||||||||||
= Cypressaurus sp.
Holman 1972
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Smith 2011 | |||||||||
(see re-ID entry under Cypressaurus sp.) | ||||||||||
Reptilia
- Polychrotidae
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Polychrus charisticus n. sp.
Smith 2006
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Smith 2006 | 81 specimens | ||||||||
PTRM 1841 (holotype), partial right maxilla; PTRM 2637, right dentary fragment; 1990, partial right dentary; 2596, left dentary fragment; 1418, right dentary fragment; 2673, right dentary fragment; 5351, edentulous right dentary; 5400, jaw fragment; 1997, right maxilla fragment; 5372, left maxilla fragment; 5373, right maxilla fragment; 5374, partial right maxilla | ||||||||||
= Sauropithecoides charisticus n. gen., n. sp.
Smith 2006
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Smith 2011 | |||||||||
(same specimens as original designation) Additional: Newly referred specimens. Both specimens of Xenosaurid MPH- 1 as well as the following: PTRM 19003 (right prefrontal), 19008 (frontal fragment; Figure 12D–F), 19009 (frontal fragment; Figure 12A–C), 19010 (partial parietal; Figure 18A–C), 19011 (partial parietal), 19012 (partial parietal; Figure 18D–F), 19014 (partial left postorbital; Figure 16), 19037 (partial premaxilla; Figure 2D), 19038 (premaxilla; Figure 2A–C), 19039 (partial premaxilla; Figure 2E), 19040, 19041 (partial right dentaries), 19042 (premaxilla fragment), 19043 (right maxilla fragment), 19044 (jaw fragment), 19045 (partial left maxilla; Figure 4E), 19046 (left maxilla fragment), 19078 (partial left dermarticular), 19079 (partial dermarticular; Figure 24), 19087 (left jugal fragment; Figure 14), 19091 (partial left ectopterygoid; Figure 8B–E), 19094 (partial right ectopterygoid; Figure 8A), 19109 (partial left prefrontal), 19132 (partial right squamosal; Figure 20), 19138 (left maxilla fragment; Figure 4D), 19217, 19218 (partial left maxillae), 19219, 19220, 19221, 19222 (left maxilla fragments), 19223, 19224 (right maxilla fragments), 19225 (jaw fragment), 19226 (right maxilla fragment), 19227 (partial left dentary), 19228 (left dentary fragment), 19229 (dentary fragment), 19230 (jaw fragment), 19231 (dentary fragment), 19232 (jaw fragment), 19323 (partial right coronoid; Figure 22), 19326 (left articular fragment), 19349 (partial left prefrontal), 19382 (jaw fragment), 19384 (left dentary fragment), 19385 (right dentary fragment), 19386, 19387 (left maxilla fragments), 19388 (right dentary fragment), 19389 (premaxilla fragment), 19390 (right dentary fragment), 19391 (jaw fragment), 19392 (right maxilla fragment), 19459 (partial premaxilla), 19460, 19475 (left maxilla fragments), 19496 (partial right maxilla; Figure 4F), 19497 (right maxilla fragment), 19498 (left maxilla fragment), 19518 (partial left maxilla), 19519, 19522 (right maxilla fragments), 19531 (premaxilla fragment), 19553 (partial right nasal; Figure 6), 19579 (partial right maxilla; Figure 4A–C), and 19580 (right maxilla fragment). | ||||||||||
Xenosauridae informal MPH-1
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Smith 2006 | |||||||||
PRTM 1986, premaxilla; 5371, dermal skull bone fragment | ||||||||||
= Sauropithecoides charisticus n. gen., n. sp.
Smith 2006
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Smith 2011 | |||||||||
(same two specimens as original designation; see re-ID entry under Polychrus charisticus) | ||||||||||
Reptilia
- Rhineuridae
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cf. Rhineura sp.
Cope 1861
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Smith 2006 | 62 specimens | ||||||||
PTRM 5248, left dentary; 5322, right dentary fragment; 5725, left dentary; 1422, 1434, 1438, 1443-5, 1553, 1796, 1812-3, 1828, 1831, 1851, 2023, 2042, 2067, 5171, 5180, 5216, 5235, 5238, 5348, twelve specimens; 5362-3, 5384-6, 5668, 5673-4, 5686-8, trunk vertebrae. New specimens from Smith 2011: PTRM 19128 (precaudal vertebra), 19147 (partial right dentary), 19147, 19148 (partial right dentaries), 19149 (right dentary fragment), 19163 (nearly complete left dentary), 19164 (partial left dentary), 19165 (partial right dentary), 19166 (partial left dentary), 19167 (right dentary fragment), 19168 (left dentary fragment), 19169 (jaw fragment), 19170 (left maxilla fragment), 19421 (partial right maxilla), 19424 (nearly complete left dentary), 19425, 19489 (partial right dentaries), 19490, 19491 (left dentary fragments), 19492 (jaw fragment), 19527 (partial right maxilla), 19546, 19547 (precaudal vertebrae), 19566 (partial left dentary), 19567 (right dentary fragment), 19568 (left maxilla fragment). | ||||||||||
cf. Spathorhynchus sp.
Berman 1973
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Smith 2006 | 26 specimens | ||||||||
PTRM 1793, right dentary; 1825, 5364-70, 5638-9, 5662, 5667, 5671-2, 5691, trunk vertebrae. New referrals from Smith 2011: PTRM 19160 (partial left dentary), 19161, 19162 (partial right dentaries), 19216 (partial right maxilla), 19420 (partial left dentary), 19422? (right maxilla fragment), 19423 (jaw fragment), 19524–19526 (partial vertebrae). | ||||||||||
Mammalia
- Leptictidae
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Leptictis sp.
Leidy 1868
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= Leptictidae indet.
Gill 1872
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Alroy 2002 | |||||||||
= Leptictis cf. acutidens
Douglass 1902
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Kihm and Schumaker 2004 | |||||||||
Mammalia
- Apatemyidae
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Sinclairella sp.
Jepsen 1934
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Mammalia
- Macroscelidea
- Amphilemuridae
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cf. Ankylodon sp.
Patterson and McGrew 1937
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Mammalia
- Chiroptera
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Chiroptera indet.
Blumenbach 1779
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a bat | ||||||||||
Mammalia
- Carnivora
- Amphicyonidae
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Daphoenus sp.
Leidy 1853
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Mammalia
- Carnivora
- Canidae
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Hesperocyon cf. gregarius
(Cope 1873)
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"gregarias" | ||||||||||
Mammalia
- Perissodactyla
- Equidae
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Mesohippus cf. propinquus
Lambe 1905
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"proprinquus" | ||||||||||
Mesohippus cf. westoni
(Cope 1889)
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"westonii" | ||||||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
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Trigonias sp.
Lucas 1900
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Mammalia
- Perissodactyla
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Toxotherium sp.
Wood 1961
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Mammalia
- Perissodactyla
- Brontotheriidae
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Brontotheriidae indet.
(Marsh 1873)
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Mammalia
- Camelidae
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cf. Poebrotherium sp.
Leidy 1847
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Mammalia
- Anthracotheriidae
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Anthracotheriidae indet.
Leidy 1869
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Mammalia
- Leptomerycidae
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Leptomeryx cf. yoderi
Schlaikjer 1935
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confirmed by Heaton and Emry 1996 | ||||||||||
Mammalia
- Leptochoeridae
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Stibarus montanus
Matthew 1903
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Mammalia
- Soricidae
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cf. Domnina sp.
Cope 1873
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Kihm and Schumaker 2008 | |||||||||
PTRM 14680 | ||||||||||
Domnina cf. thompsoni
Simpson 1941
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Kihm and Schumaker 2008 | |||||||||
PTRM 10272, 10736, 10274, 10276, 14126, 14124, 14127, 10740, 10703, 14681, 5831, 10273 | ||||||||||
Domnina sp.
Cope 1873
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= Domnina sagittariensis
Kihm and Schumaker 2008
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Kihm and Schumaker 2008 | |||||||||
Domnina cf. D. thompsoni | ||||||||||
Domnina sagittariensis n. sp.
Kihm and Schumaker 2008
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Kihm and Schumaker 2008 | |||||||||
PTRM 5553, 7889, 10734, 10700, 2025, 7415, 5833, 7284, 7705, 10764, 10737, 4921, 7800, 16020, 7283, 7289, 7416, 7437, 10741, 14125, 4949, 8316, 10742, 14682, 10284, 10275, 10743, 5125, 10739; 4827, 5549, 10735, 10738 | ||||||||||
Mammalia
- Geolabididae
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Centetodon chadronensis
Lillegraven et al. 1981
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Centetodon magnus
(Clark 1936)
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Mammalia
- Micropternodontidae
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Micropternodus cf. borealis
Matthew 1903
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Kihm and Schumaker 2004 | |||||||||
No Specimen Numbers Cited | ||||||||||
Mammalia
- Apternodontidae
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Apternodus sp.
Matthew 1903
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Kihm and Schumaker 2004 | |||||||||
No Specimen Numbers Cited | ||||||||||
Mammalia
- Oligoryctidae
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Oligoryctes cf. cameronensis
Hough 1956
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Kihm and Schumaker 2004 | |||||||||
No Specimen Numbers Cited | ||||||||||
Mammalia
- Rodentia
- Aplodontidae
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Prosciurinae indet.
Wilson 1949
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Kihm 2013 | |||||||||
PTRM 4962, 5051, 4901 | ||||||||||
Prosciurus vetustus
(Matthew 1903)
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Kihm 2013 | |||||||||
original and current combination Sciurus (Prosciurus) vetustus | ||||||||||
PTRM 11046, 14177, 5572, 8339, 11047, 11051, 7392, 8010, 11039, 14607, 15022, 5052, 5074, 6212, 10950, 7921, 7720, 8340, 11035, 11037, 5037, 5571, 11040, 11048, 11049, 14175, 2630, 8005, 11044, 7293, 7659 | ||||||||||
Mammalia
- Rodentia
- Sciuridae
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Douglassciurus jeffersoni
(Douglass 1902)
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Kihm 2013 | |||||||||
PTRM 6203, 5025, 2607, 2628, 7932, 11034, 1943, 11036 | ||||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Metaparamys cf. dawsonae
Korth and Emry 2007
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Kihm 2013 | |||||||||
PTRM 11041, 7920, 8349, 7440 | ||||||||||
Ischyromys junctus
Russell 1972
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Kihm 2013 | |||||||||
PTRM 14972, 7945, 8001, 8325, 4738, 7387, 7713, 2625, 2008, 10928, 5104, 8008, 11045, 11042, 11043, 8321, 11050, 11053. | ||||||||||
Ischyromys cf. veterior
Matthew 1903
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Kihm 2013 | |||||||||
PTRM 11038, 4905, 7428 | ||||||||||
Mammalia
- Rodentia
- Eutypomyidae
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Eutypomys parvus
Lambe 1908
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Kihm 2011 | |||||||||
PTRM 8338, 1398, 4866, 6100, 7924, 10967, 10417, 10973, 4900, 10997, 1364, 1955, 7290, 7715, 8323, 10966, 10971, 10980, 10986, 10989, 10991, 10992, 10993, 1327, 2098, 7292, 8006, 10985, 10969, 10987, 6275, 7935, 10968, 10979, 10990, 7425, 7949, 10982, 10983, 10994, 16012, 11013, 5028, 10965, 6150, 10972, 10975, 10996, 1488, 2629, 5022, 5029, 5105, 6158, 6206, 7291, 7943, 10970, 10976, 10978, 10981, 10988, 11019, 2012, 6126, 7397, 7712, 8319, 10995, 11004, 1397, 5095, 10977, 5027, 5032. | ||||||||||
Mammalia
- Rodentia
- Heliscomyidae
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Heliscomys cf. vetus
Cope 1873
|
Kihm 2013 | |||||||||
PTRM 4898, 11063, 5452, 5459, 5540, 7727, 10290, 10296, 11061, 14157, 14159, 14161, 14168, 14693, 14697, 14699, 4881, 4961, 5588, 5595, 10208, 10294, 10298, 11054, 11055, 11058, 11064, 11066, 14155, 14166, 14167, 14171, 14692, 14696, 14698, 14700, 4880, 5065, 5094, 5457, 5818, 5848, 6157, 10292, 10297, 10444, 11067, 14150, 14153, 14154, 14158, 14160, 14164, 14170, 14173, 14701, 14702, 4971, 5013, 5490, 5744, 5875, 6276, 7426, 8013, 8014, 10293, 10295, 11056, 11057, 11059, 11060, 11062, 14151, 14152, 14156, 14162, 14163, 14165, 14169, 14172, 14694, 14695, 14703, 14704 | ||||||||||
Mammalia
- Rodentia
- Eomyidae
|
||||||||||
Centimanomys sp.
Galbreath 1955
|
||||||||||
Paradjidaumo cf. trilophus
(Cope 1873)
|
||||||||||
recombined as Adjidaumo trilophus | ||||||||||
Paradjidaumo cf. hansonorum
(Russell 1972)
|
||||||||||
Yoderimys cf. stewarti
(Russell 1972)
|
||||||||||
"stewardii" | ||||||||||
Mammalia
- Rodentia
- Pipestoneomyidae
|
||||||||||
Pipestoneomys sp.
Donohoe 1956
|
Kihm 2011 | |||||||||
PTRM 10974, 6167 | ||||||||||
Mammalia
- Rodentia
- Sciuravidae
|
||||||||||
Prolapsus sp.
Wood 1973
|
Kihm 2013 | |||||||||
PTRM 7298 | ||||||||||
Mammalia
- Rodentia
- Cylindrodontidae
|
||||||||||
Pseudocylindrodon silvaticus
|
Kihm 2011 | |||||||||
PTRM 8288, 14960, 14705, 10934, 7388, 7393, 10945, 10946, 5000, 7390, 5010, 8009, 11024, 4999, 7927, 8333, 11026, 14970, 5537, 6123, 7297, 7395, 10947, 7944, 10413, 7427, 7716, 7925, 7931, 5525, 8337, 5096, 5871, 11022 | ||||||||||
Cylindrodon cf. collinus
Russell 1972
|
||||||||||
= Cylindrodon collinus
Russell 1972
|
Kihm 2011 | |||||||||
Ardynomys saskatchewensis
|
Kihm 2011 | |||||||||
PTRM 7478, 7926 11023, 11052, 8332, 11001, 14968, 10932, 7295, 7717, 7726, 8322, 11007, 11021, 7272, 11020 | ||||||||||
Mammalia
- Lagomorpha
- Leporidae
|
||||||||||
Megalagus cf. brachyodon
(Matthew 1903)
|
||||||||||
Palaeolagus cf. temnodon
Douglass 1902
|
||||||||||
"timnodon" | ||||||||||
Mammalia
- Primates
- Paromomyidae
|
||||||||||
cf. Ignacius sp.
Matthew and Granger 1921
|
Kihm and Tornow 2014 | |||||||||
PTRM 17483 | ||||||||||
Mammalia
- Primates
- Microsyopidae
|
||||||||||
Uintasoricinae indet.
Szalay 1969
|
Kihm and Tornow 2014 | |||||||||
PTRM 10401 | ||||||||||
Mammalia
|
||||||||||
Didelphidectes sp.
Hough 1961
|
||||||||||
= Peradectes sp.
Matthew and Granger 1921
|
Kihm et al. 2001 | |||||||||
Herpetotherium valens
(Lambe 1908)
|
||||||||||
Herpetotherium cf. fugax
(Cope 1873)
|
Kihm et al. 2001 | |||||||||
Mammalia
- Multituberculata
- Neoplagiaulacidae
|
||||||||||
? Neoplagiaulacidae indet.
Ameghino 1890
|
Schumaker and Kihm 2006 | |||||||||
PTRM 7812 | ||||||||||
Ectypodus lovei
(Sloan 1966)
|
||||||||||
see common names |
Geography
Country: | United States | State/province: | North Dakota | County: | Bowman |
Coordinates: | 46.1° North, 103.3° West (view map) | ||||
Paleocoordinates: | 47.4° North, 94.2° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
*Period: | Tertiary | ||
Key time interval: | Chadronian | ||
Age range of interval: | 37.20000 - 33.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Chadron | Member: | Chalky Buttes |
Stratigraphic resolution: | group of beds |
Lithology and environment
Primary lithology: | "cross stratification",planar lamination,fine,medium,brown poorly lithified sandstone |
Lithology description: "brownish, poorly sorted, poorly consolidated, generally medium- to fine-grained sandstone... 2.5 m local section... two trough cross-bedded units (units 2 and 6); unit 5 [and] 2 [are] indistinguishable... Along the bedding planes are strewn gray mudballs... Unit 3 is a fine-grained, parallel-bedded sandstone. Unit 4 displays planar cross-bedding." (Smith 2006) | |
Environment: | "channel" |
Geology comments: "characteristic of the distal reaches of some modern braided rivers... braidbelt environment" (Smith 2006) |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | bulk,sieve,field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: "All fossils were collected... by dry-screening quarried sediment" (Smith 2006) | |
Taxonomic list comments:from six different sites
originally reported by Leonard 1922 |
Metadata
Also known as: | PTRM V89002 | ||
Database number: | 16991 | ||
Authorizer: | J. Alroy, C. Boyd, J. Mueller, P. Barrett | Enterer: | J. Alroy, T. Cleary, T. Liebrecht, C. Boyd |
Modifier: | T. Cleary | Research group: | vertebrate |
Created: | 1997-04-12 00:00:00 | Last modified: | 2016-09-05 10:14:24 |
Access level: | the public | Released: | 1997-04-12 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2743. | D. A. Pearson and J. W. Hoganson. 1995. Proceedings of the North Dakota Academy of Sciences 49 [J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
54444 | A. J. Kihm. 2011. Rodents from the Chadronian (Latest Eocene) Medicine Pole Hills Local Fauna, North Dakota. Part 1. Eutypomyidae, Cylindrodontidae, and Pipestoneomys. Paludicola 8(2):75-90 [C. Boyd/C. Boyd] | |
54821 | A. J. Kihm. 2013. Rodents from the Chadronian (latest Eocene) Medicine Pole Hills local fauna, North Dakota. Part 2. Ischyromidae, Sciuravidae, Aplodontidae, Sciuridae and Heliscomyidae. 9(2):41-55 [C. Boyd/C. Boyd] | |
4189 | A. J. Kihm, K. K. Schumaker, C. Warner-Evans and D. A. Pearson. 2001. Marsupials from the Medicine Pole Hills Local Fauna (latest Eocene) of North Dakota. Journal of Vertebrate Paleontology 21(3):67A-68A [J. Alroy/R. Whatley/R. Whatley] | |
54445 | A. J. Kihm and K. K. Schumaker. 2004. The Chadronian Medicine Pole Hills Local Fauna, North Dakota. In J. H. Hartman (ed.), Guide to the vertebrate paleontology of the High Plains - The late Mesozoic-Cenozoic record of North Dakota: University of North Dakota Department of Geology and Geological Engineering Contribution 54 77-84 [C. Boyd/C. Boyd/C. Boyd] | |
54442 | A. J. Kihm and K. K. Schumaker. 2008. Domnina (Mammalia, Soricomorpha) from the latest Eocene (Chadronian) Medicine Pole Hills Local Fauna of North Dakota. Paludicola 7(1):26-36 [C. Boyd/C. Boyd] | |
54819 | A. J. Kihm and M. A. Tornow. 2014. First occurrence of plesiadapiform primates from the Chadronian (latest Eocene). Paludicola 9(4):176-182 [C. Boyd/C. Boyd] | |
54443 | K. K. Schumaker and A. J. Kihm. 2006. Multituberculates from the Medicine Pole Hills Local Fauna (Chadronian) of Bowman, County, North Dakota. Paludicola 6(1):9-21 [C. Boyd/C. Boyd] | |
19366 | K. T. Smith. 2006. A diverse new assemblage of late Eocene squamates (Reptilia) from the Chadron Formation of North Dakota, U.S.A. Palaeontologia Electronica 9(2):1-44 [J. Alroy/J. Alroy] | |
54446 | K. T. Smith. 2011. The Evolution of Mid-latitude Faunas during the Eocene: Late Eocene Lizards of the Medicine Pole Hills Reconsidered. Bulletin of the Peabody Museum of Natural History 52(1):3-105 [C. Boyd/C. Boyd] | |
49993 | K. T. Smith. 2013. New constraints on the evolution of the snake clades Ungaliophiinae, Loxocemidae and Colubridae (Serpentes), with comments on the fossil history of erycine boids in North America. Zoologischer Anzeiger 252(2):157-182 [J. Mueller/T. Liebrecht] |