Placerias Quarry, UCMP A269: Norian, Arizona
collected by C. L. Camp 1931-1934
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Colobontidae indet.
|
Heckert et al. 2005 | |||||||||
Chondrichthyes
|
||||||||||
Chondrichthyes informal indet. B
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Chondrichthyes informal indet. C
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Chondrichthyes
- Xenacanthiformes
- Xenacanthidae
|
||||||||||
Xenacanthus moorei
(Woodward 1889)
|
Tannenbaum 1983 | 13 elements | ||||||||
recombined as Triodus moorei | ||||||||||
Chondrichthyes
- Phoebodontiformes
- Phoebodontidae
|
||||||||||
Phoebodus sp.
St. John and Worthen 1875
|
Tannenbaum 1983 | 1 element | ||||||||
MNA V3500 | ||||||||||
Chondrichthyes
- Hybodontiformes
- Acrodontidae
|
||||||||||
Acrodus sp.
Agassiz 1834
|
Irmis 2005 | 1 specimen | ||||||||
MNA V3566 | ||||||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
|
||||||||||
Lonchidion cf. humblei
Murry 1981
|
Tannenbaum 1983 | 1 element | ||||||||
= Lissodus humblei
Murry 1981
|
Murry and Long 1989 | |||||||||
original and current combination Lonchidion humblei | ||||||||||
Osteichthyes
|
||||||||||
Osteichthyes informal indet. B
Huxley 1880
|
Tannenbaum 1983 | 2 elements | ||||||||
Osteichthyes informal indet. E
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. F
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. H
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. I
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. J
Huxley 1880
|
Tannenbaum 1983 | 2 elements | ||||||||
Osteichthyes informal indet. K
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. M
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. O
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Osteichthyes informal indet. P
Huxley 1880
|
Tannenbaum 1983 | 1 element | ||||||||
Pholidopleuriformes
- Pholidopleuridae
|
||||||||||
cf. Australosomus sp.
Pivetau 1930
|
Heckert et al. 2005 | |||||||||
Dipnoi
- Ceratodontidae
|
||||||||||
Ceratodontidae indet.
Gill 1872
|
Tannenbaum 1983 | 14 elements | ||||||||
= Ceratodus sp.
Agassiz 1838
|
Murry and Long 1989 | |||||||||
Coelacanthimorpha
- Coelacanthiformes
- Mawsoniidae
|
||||||||||
cf. Chinlea sp.
Schaeffer 1967
|
Heckert et al. 2005 | |||||||||
Coelacanthimorpha
- Coelacanthiformes
- Coelacanthidae
|
||||||||||
Coelacanthidae indet.
Agassiz 1843
|
Tannenbaum 1983 | 2 elements | ||||||||
Amphibia
- Temnospondyli
|
||||||||||
Temnospondyli indet.
(von Zittel 1887)
|
Heckert et al. 2005 | |||||||||
At least 4 morphotypes | ||||||||||
Amphibia
- Temnospondyli
- Metoposauridae
|
||||||||||
Buettneria perfecta
Case 1922
|
Long and Murry 1995 | 3 specimens | ||||||||
synonym of Anaschisma browni | ||||||||||
MNA V3039, 3045, unnumbered | ||||||||||
Apachesaurus gregorii
Hunt 1993
|
Long and Murry 1995 | 1 specimen | ||||||||
MNA, small centra | ||||||||||
Amphibia
- Temnospondyli
|
||||||||||
Salientia indet.
Laurenti 1768
|
Stocker et al. 2019 | |||||||||
MNA V12365, left ilium; MNA V12366, left ilium; MNA V12369, partial maxilla | ||||||||||
Anomodontia
- Stahleckeriidae
|
||||||||||
Placerias gigas n. sp.
Camp and Welles 1956
|
1600 specimens | |||||||||
synonym of Placerias hesternus | ||||||||||
Cynodontia
|
||||||||||
Cynodontia indet.
Owen 1861
|
Kaye and Padian 1994 | 9 specimens | ||||||||
MNA V3618-3625, 3563 | ||||||||||
Reptilia
- Tanystropheidae
|
||||||||||
Tanytrachelos sp.
Olsen 1979
|
Kaye and Padian 1994 | 1 specimen | ||||||||
Cervical rib | ||||||||||
Reptilia
|
||||||||||
Trilophosaurus sp.
Case 1928
|
Long and Murry 1995 | 11 specimens | ||||||||
UCMP 32390, 25877, 25825, 25839, 25826, 25798, 25790, 25424, MNA V2924, 2956, 2928. Postcrania | ||||||||||
Trilophosaurus jacobsi n. sp.
Murry 1987
|
Murry 1987 | 6 specimens | ||||||||
MNA V3192 (holotype), 3193, 3198, 3199, mandibular fragments. MNA V3194, 3197, maxillary fragments | ||||||||||
Crosbysaurus harrisae
Heckert 2004
|
Heckert and Lucas 2006 | |||||||||
= Archosauriformes indet.
Gauthier 1986
|
Irmis 2005 | |||||||||
Tecovasaurus murryi
Hunt and Lucas 1994
|
Hunt and Lucas 1994 | 5 specimens | ||||||||
MNA V1699, 1704, teeth | ||||||||||
cf. Uatchitodon sp.
Sues 1991
|
Kaye and Padian 1994 | 1 specimen | ||||||||
MNA V3680, tooth | ||||||||||
= Uatchitodon schneideri
Mitchell et al. 2010
|
Mitchell et al. 2010 | |||||||||
cf. Coelophysis sp.
Cope 1889
|
Murry and Long 1989 | |||||||||
Teeth | ||||||||||
= Archosauria indet.
Cope 1869
|
Hunt et al. 1998 | |||||||||
Poposaurus gracilis
Mehl 1915
|
Long and Murry 1995 | 29 specimens | ||||||||
UCMP & MNA collections. See Long & Murry (1995) for full specimen list | ||||||||||
Hesperosuchus agilis
Colbert 1952
|
Heckert et al. 2005 | |||||||||
Sphenosuchia indet.
()
|
Heckert et al. 2005 | |||||||||
invalid subgroup of Crocodylomorpha | ||||||||||
"Large sphenosuchian" | ||||||||||
Postosuchus kirkpatricki
Chatterjee 1985
|
Long and Murry 1995 | |||||||||
UCMP A269/27492, 27572, 27441, 140035, 124586, 27481, 27440, 27478, 27447, 27449, 27450, 27485, cranial material | ||||||||||
Revueltosaurus callenderi
Hunt 1989
|
Kaye and Padian 1994 | 1 specimen | ||||||||
MNA V3690 | ||||||||||
? Tecovasuchus sp.
Martz and Small 2006
|
Heckert et al. 2007 | 2 elements | ||||||||
UCMP A269/126847, A269/136744 | ||||||||||
Tecovasuchus chatterjeei
Martz and Small 2006
|
Heckert et al. 2007 | 1 element | ||||||||
MNA 2898, osteoderm | ||||||||||
Desmatosuchus haplocerus
(Cope 1892)
|
Long and Murry 1995 | 620 specimens | ||||||||
UCMP collections. See Long & Murry (1995) for full specimen list | ||||||||||
= Desmatosuchus spurensis
Case 1920
|
Parker 2008 | |||||||||
Stagonolepis wellesi
(Long and Ballew 1985)
|
Long and Murry 1995 | 485 specimens | ||||||||
original and current combination Calyptosuchus wellesi | ||||||||||
UCMP collections. See Long & Murry (1995) for full specimen list | ||||||||||
Acaenasuchus geoffreyi
Long and Murry 1995
|
Long and Murry 1995 | 9 specimens | ||||||||
MNA V3668, Pl. 3040, Pl. 3043, V3679, Pl. 2921, Pl. 2952, Pl. 3002, Pl. 3007, Pl. 3046, all plates | ||||||||||
Reptilia
- Shuvosauridae
|
||||||||||
Chatterjeea elegans
Long and Murry 1995
|
Long and Murry 1995 | 1 specimen | ||||||||
synonym of Shuvosaurus inexpectatus | ||||||||||
MNA V3743, femur | ||||||||||
Reptilia
|
||||||||||
Paleorhinus sp.
Williston 1904
|
Murry and Long 1989 | 1 specimen | ||||||||
= Parasuchia indet.
Huxley
|
Irmis 2005 | |||||||||
synonym of Phytosauria | ||||||||||
Reptilia
- Parasuchidae
|
||||||||||
Rutiodon sp.
Emmons 1856
|
Heckert et al. 2005 | |||||||||
Leptosuchus sp.
Case 1922
|
Long and Murry 1995 | |||||||||
Numerus specimens - see Long & Murry (1995) for details | ||||||||||
Leptosuchus adamanensis
(Camp 1930)
|
Long and Murry 1995 | 3 specimens | ||||||||
recombined as Smilosuchus adamanensis | ||||||||||
UCMP 27446, MNA V3024, 3025, squamosals | ||||||||||
Reptilia
|
||||||||||
Parrishia mccreai n. gen., n. sp.
Long and Murry 1995
|
Long and Murry 1995 | 13 specimens | ||||||||
nomen dubium belonging to Archosauria | ||||||||||
UCMP 139623 (holotype), cervical. Referred vertebrae | ||||||||||
? Anchisauridae indet.
Marsh 1885
|
Tannenbaum 1983 | 1 specimen | ||||||||
UCMP 25793, distal tibia | ||||||||||
= Anchisauridae indet.
Marsh 1885
|
Murry and Long 1989 | |||||||||
= Prosauropoda indet.
Huene 1920
|
Long and Murry 1995 | |||||||||
= Dinosauriformes indet.
Novas 1992
|
Irmis 2005 | |||||||||
Dinosauriformes indet.
Novas 1992
|
Nesbitt et al. 2007 | 1 specimen | ||||||||
UCMP 25834, distal femur | ||||||||||
Reptilia
- Ornithischia
|
||||||||||
Fabrosauridae indet.
Galton 1972
|
Jacobs and Murry 1980 | |||||||||
= Ornithischia indet.
Seeley 1888
|
Heckert et al. 2005 | |||||||||
Reptilia
|
||||||||||
Revueltosaurus hunti
Heckert 2002
|
Heckert et al. 2006 | 2 elements | ||||||||
recombined as Krzyzanowskisaurus hunti | ||||||||||
MNA V3195, 3200, teeth previously referred to Trilophosaurus jacobsi | ||||||||||
Reptilia
- Theropoda
|
||||||||||
Theropoda indet.
Marsh 1881
|
Nesbitt et al. 2007 | 1 specimen | ||||||||
UCMP 25830 | ||||||||||
Reptilia
- Herrerasauridae
|
||||||||||
Chindesaurus bryansmalli
Long and Murry 1995
|
Long and Murry 1995 | 1 specimen | ||||||||
UCMP, 5 dorsal centra | ||||||||||
= Herrerasauridae indet.
Benedetto 1973
|
Hunt et al. 1998 | |||||||||
Reptilia
- Coelophysidae
|
||||||||||
Camposaurus arizonensis n. gen., n. sp.
Hunt et al. 1998
|
Hunt et al. 1998 | 1 specimen | ||||||||
Reptilia
- Saurischia
|
||||||||||
Ceratosauria indet.
(Marsh 1884)
|
Long and Murry 1995 | |||||||||
UCMP 139622, femur. UCMP 25820, distal tibia | ||||||||||
= Saurischia indet.
Seeley 1888
|
Irmis 2005 | |||||||||
Reptilia
|
||||||||||
? Pterosauria indet.
(Kaup 1834)
|
Long and Murry 1995 | |||||||||
Dromomeron gregorii
Nesbitt et al. 2009
|
Nesbitt et al. 2009 | 1 specimen | ||||||||
UCMP 25815 | ||||||||||
Reptilia
- Proterochampsidae
|
||||||||||
Proterochampsidae indet.
Romer 1966
|
Heckert et al. 2005 | |||||||||
Reptilia
|
||||||||||
Vancleavea campi
Long and Murry 1995
|
Nesbitt et al. 2009 | 3 specimens | ||||||||
MNA V 3669, V3670, UCMP 152646, vertebrae | ||||||||||
Syntomiprosopus sucherorum n. gen., n. sp.
Heckert et al. 2021
|
Heckert et al. 2021 | 1 individual | ||||||||
Holotype: NCSM 29059–29060, a nearly complete right mandible found as two separate, but closely associated specimens in the same horizon. NCSM 29059 is the number assigned to the anterior (tooth-bearing) portion, NCSM 29060 is assigned to the posterior portion. Authors are certain that they pertain to the same individual, but there is no unambiguous point of contact between the two. | ||||||||||
Lepidosauromorpha indet.
(Benton 1983)
|
Heckert et al. 2005 | |||||||||
Reptilia
- Sphenodontidae
|
||||||||||
Sphenodontidae indet.
Cope 1871
|
Murry 1987 | 10 specimens | ||||||||
MNA V3190, 3191, 3605-3612 | ||||||||||
Reptilia
- Kuehneosauridae
|
||||||||||
? Kuehneosauridae indet.
Romer 1966
|
Heckert et al. 2005 | |||||||||
Reptilia
|
||||||||||
Palacrodon sp.
Broom 1906
|
Kligman et al. 2018 | |||||||||
MNA V3684, jaw fragment; V11247, tooth | ||||||||||
Reptilia
- Drepanosauridae
|
||||||||||
Drepanosauridae indet.
Berman and Reisz 1992
|
Renesto et al. 2009 | 3 elements | ||||||||
MNA V3637, posterior caudal vertebra. MNA V3652 (in part), posterior cervical vertebra, centrum | ||||||||||
cf. Drepanosauridae indet.
Berman and Reisz 1992
|
Renesto et al. 2009 | 1 element | ||||||||
MNA V3652 (in part), neural arch | ||||||||||
Reptilia
- Procolophonidae
|
||||||||||
Procolophonidae indet.
Lydekker 1889
|
Long and Murry 1995 | |||||||||
Actinopteri
- Semionotiformes
- Semionotidae
|
||||||||||
Semionotidae indet.
Woodward 1890
|
Tannenbaum 1983 | 4 elements | ||||||||
Palaeonisciformes
- Redfieldiidae
|
||||||||||
Redfieldiidae indet.
Hutchinson 1973
|
Tannenbaum 1983 | 1 element | ||||||||
Lasalichthyes sp. or Synorichthyes sp. | ||||||||||
Cionichthys sp.
Schaeffer 1967
|
Tannenbaum 1983 | 1 element | ||||||||
= cf. Cionichthys sp.
Schaeffer 1967
|
Murry and Long 1989 | |||||||||
Osteichthyes informal indet. A
Huxley 1880
|
Tannenbaum 1983 | 3 elements | ||||||||
= cf. Lasalichthys sp.
Schaeffer 1967
|
Murry and Long 1989 | |||||||||
Palaeonisciformes
- Palaeoniscidae
|
||||||||||
Palaeoniscidae indet.
Vogt 1852
|
Tannenbaum 1983 | 9 elements | ||||||||
= cf. Turseodus sp.
Leidy 1857
|
Murry and Long 1989 | |||||||||
Gyrolepis sp.
Agassiz 1833
|
Tannenbaum 1983 | 1 element | ||||||||
see common names |
Geography
Country: | United States | State/province: | Arizona | County: | Apache |
Coordinates: | 34.4° North, 109.5° West (view map) | ||||
Paleocoordinates: | 10.1° North, 48.1° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
Stage: | Norian | 10 m.y. bin: | Triassic 4 |
Key time interval: | Norian | ||
Age range of interval: | 228.00000 - 208.50000 m.y. ago |
Stratigraphy
Formation: | Chinle | Member: | Mesa Redondo | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: One of two nearly adjacent quarries (the second is the Downs Quarry, 30 metres from the Placerias Quarry). Early workers placed the Placerias Quarry low in the Blue Mesa Member, while Lucas et al. (1997) assigned it to the Mesa Redondo (= Bluewater Creek) Member. Parker (2005) noted that the lithology of the beds and the local presence of the Shinarump Member (the basal member of the Chinle Formation) supports the Mesa Redondo assignment. Earliest Adamanian LVF
Kent et al. 2019: Mesa Redondo Fm. falls between magnetozone 10n and PF8r, approximately 209.5Ma. 224.54–222.24Ma. |
Lithology and environment
Primary lithology: | lenticular,brown,red silty,sandy mudstone |
Secondary lithology: | paleosol/pedogenic,concretionary,gray,green silty,carbonaceous claystone |
Lithology description: "The original quarry horizon was a bed of limestone concretions from which many broken or poorly preserved bones were recovered; this gives way to typical reddish-brown Chinle mudstones and silts, with occasional sandstone lenses, in which 'two fossiliferous levels [were] separated by 2 feet of barren sediments'...Calcareous nodules, gypsum lenses, carbonaceous particles, and yellow-brown sulfurous deposits are common"...fossils in "clay-rich mudstone...[that] varies in color from a dark to light olive gray, with little change in mineral composition. These mudstones are dominantly smectite with 10%-25% quartz and traces of feldspar, gypsum, and calcite...'chunks' of this carbonaceous material occur as dark gray and black specks usually less than a millimeter or two in diameter...the calcareous nodules...are autochthonous...[with] a micritic texture." Nodules interpreted as palustrine carbonates. | |
Environment: | wet floodplain |
Geology comments: "a soft, vegetated pond bottom or other quiet water deposit"; "ancient pond or marsh, an environment of low-energy water flow that may have been seasonally low or dry (as indicated by numerous evaporites." But re-interpreted as a humid-environment soil. |
Taphonomy
Modes of preservation: | body,coprolite |
Degree of concentration: | -seasonal |
Size of fossils: | macrofossils,mesofossils,microfossils |
Preservation of anatomical detail: | variable |
Articulated whole bodies: | none |
Associated major elements: | none |
Disassociated major elements: | many |
Disassociated minor elements: | many |
Fragmentation: | frequent |
Bioerosion: | occasional |
Feeding/predation traces: | tooth marks,gastric dissolution |
Spatial resolution: | autochthonous |
Collection methods and comments
Collection methods: | bulk,selective quarrying,mechanical,sieve,field collection | ||
Reason for describing collection: | general faunal/floral analysis | ||
Museum repositories: | UCMP | ||
Collectors: | C. L. Camp | Collection dates: | 1931-1934 |
Metadata
Database number: | 39160 | ||
Authorizer: | M. Carrano, B. Gee, E. Dunne, R. Butler, P. Mannion, A. Dunhill | Enterer: | M. Carrano, E. Dunne, B. Gee, B. Allen, R. Butler, J. Tennant, K. Maguire |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2004-05-21 16:43:16 | Last modified: | 2022-01-21 10:18:59 |
Access level: | the public | Released: | 2004-05-21 16:43:16 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
32081. | C. L. Camp and S. P. Welles. 1956. Triassic dicynodont reptiles. Part 1. Memoirs of the University of California 13:255-341 [R. Butler/R. Butler/R. Butler] |
Secondary references:
27981 | ETE | K. D. Angielczyk. 2002. A selective annotation of published Triassic vertebrates from the University of California Museum of Paleontology collection. In A. B. Heckert, S. G. Lucas (eds.), New Mexico Museum of Natural History and Science Bulletin 21:297-301 [M. Carrano/M. Carrano/P. Wagner] |
19347 | ETE | A. R. Fiorillo, K. Padian, and C. Musikasinthorn. 2000. Taphonomy and depositional setting of the Placerias Quarry (Chinle Formation: Late Triassic, Arizona). Palaios 15:373-386 [M. Carrano/M. Carrano] |
78332 | A. B. Heckert and S. G. Lucas. 1997. Lower Chinle Group (Adamanian: latest Carnian) tetrapod biostratigraphy and biochronology, eastern Arizona and west-central New Mexico. Southwest Paleontological Symposium, Proceedings 1997 11-23 [M. Carrano/M. Carrano] | |
25555 | ETE | A. B. Heckert and S. G. Lucas. 1998. First use of ornithischian dinosaurs for biostratigraphic zonation of the Upper Triassic. Albertiana 20:58-63 [M. Carrano/M. Carrano] |
31129 | A. B. Heckert and S. G. Lucas. 2002. Acaenasuchus geoffreyi (Archosauria: Aetosauria) from the Upper Triassic Chinle Group: juvenile of Desmatosuchus haplocerus. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology. New Mexico Museum of Natural History and Science Bulletin 21:205-214 [R. Butler/R. Butler] | |
78475 | A. B. Heckert and S. G. Lucas. 2003. Stratigraphy and paleontology of the lower Chinle Group (Adamanian: latest Carnian) in the vicinity of St. Johns, Arizona. In S. G. Lucas, S. C. Semken, W. Berglof, & D. Ulmer-Scholle (eds.), New Mexico Geological Society, 54th Field Conference, Geology of the Zuni Plateau 54:281-288 [M. Carrano/M. Carrano] | |
46019 | A. B. Heckert, S. G. Lucas, and A. P. Hunt. 2005. Triassic vertebrate fossils in Arizona. Vertebrate Paleontology in Arizona. New Mexico Museum of Natural History and Science Bulletin 29:16-44 [P. Mannion/J. Tennant] | |
32141 | A. B. Heckert, S. G. Lucas, L. F. Rinehart, J. A. Spielmann, A. P. Hunt and R. Kahle. 2006. Revision of the archosauromorph reptile Trilophosaurus, with a description of the first skull of Trilophosaurus jacobsi, from the Upper Triassic Chinle Group, West Texas, USA. Palaeontology 49(3):621-640 [R. Butler/R. Butler] | |
24941 | ETE | A. B. Heckert and S. G. Lucas. 2006. Micro- and small vertebrate biostratigraphy and biochronology of the Upper Triassic Chinle Group, southwestern USA. In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:94-104 [M. Carrano/M. Carrano/P. Wagner] |
77322 | A. B. Heckert, S. J. Nesbitt, M. R. Stocker, V. P. Schneider, D. K. Hoffman and B. W. Zimmer. 2021. A new short-faced archosauriform from the Upper Triassic Placerias/Downs’ quarry complex, Arizona, USA, expands the morphological diversity of the Triassic archosauriform radiation. The Science of Nature 108(32) [E. Dunne/E. Dunne] | |
43558 | A. B. Heckert, J. A. Spielmann, S. G. and A. P. Hunt. 2007. Biostratigraphic utility of the Upper Triassic aetosaur Tecovasuchus (Archosauria: Stagonolepididae), an index taxon of St. Johnsian (Adamanian: late Carnian) time. New Mexico Museum of Natural History and Science Bulletin 41:51-57 [R. Butler/R. Butler] | |
31344 | A. P. Hunt, A. B. Heckert, S. G. Lucas and A. Downs. 2002. The distribution of the enigmatic reptile Vancleavea in the Upper Triassic Chinle Group of the western United States. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:269-273 [R. Butler/R. Butler] | |
15400 | ETE | A. P. Hunt and S. G. Lucas. 1994. Ornithischian dinosaurs from the Upper Triassic of the United States. In N. C. Fraser & H.-D. Sues (eds.), In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods. Cambridge University Press, Cambridge 227-241 [M. Carrano/M. Carrano] |
13905 | ETE | A. P. Hunt, S. G. Lucas, A. B. Heckert, R. M. Sullivan, and M. G. Lockley. 1998. Late Triassic dinosaurs from the western United States. Géobios 31(4):511-531 [M. Carrano/M. Carrano/J. Alroy] |
24406 | ETE | R. B. Irmis. 2005. A review of the vertebrate fauna of the Lower Jurassic Navajo Sandstone in Arizona. In R. D. McCord (ed.), Vertebrate Paleontolgy of Arizona. Mesa Southwest Museum Bulletin 11:55-71 [M. Carrano/M. Carrano] |
15399 | ETE | R. B. Irmis. 2005. The vertebrate fauna of the Upper Triassic Chinle Formation in northern Arizona. In S. J. Nesbitt, W. G. Parker, & R. B. Irmis (eds.), Guidebook to the Triassic Formations of the Colorado Plateau in Northern Arizona: Geology, Paleontology, and History. Mesa Southwest Museum Bulletin 9:63-88 [M. Carrano/M. Carrano/M. Carrano] |
32304 | R. B. Irmis, W. G. Parker, S. J. Nesbitt and J. Liu. 2007. Early ornithischian dinosaurs: the Triassic record. Historical Biology 19(1):3-22 [R. Butler/R. Butler/M. Carrano] | |
30645 | ETE | L. L. Jacobs. 1985. Small vertebrate fossils from the Chinle Formation (Triassic) near St. Johns, Arizona. National Geographic Society Research Reports (1979) 20:417-419 [M. Carrano/M. Carrano] |
10591 | L. L. Jacobs and P. A. Murry. 1980. The vertebrate community of the Triassic Chinle Formation near St. Johns, Arizona. Aspects of Vertebrate History: Essays in Honor of Edwin Harris Colbert, L. L. Jacobs (ed.), Museum of Northern Arizona Press 55-71 [M. Carrano/M. Carrano/M. Carrano] | |
14611 | ETE | F. T. Kaye and K. Padian. 1992. Microvertebrates from the Placerias Quarry (Chinle Formation, Carnian, Arizona): a window on Late Triassic diversity. Journal of Vertebrate Paleontology 12(3, suppl.):36A [M. Carrano/M. Carrano/M. Carrano] |
10575 | ETE | F. T. Kaye and K. Padian. 1994. Microvertebrates from the Placerias Quarry: a window on Late Triassic vertebrate diversity in the American Southwest. In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods, N. C. Fraser and H.-D. Sues (eds.), Cambridge University Press 172-196 [M. Carrano/M. Carrano/M. Carrano] |
79159 | D. V. Kent, P. E. Olsen, C. Lepre, C. Rasmussen, R. Mundil, G. E. Gehrels, D. Giesler, R. B. Irmis, J. W. Geissman and W. G. Parker. 2019. Magnetochronology of the Entire Chinle Formation (Norian Age) in a Scientific Drill Core From Petrified Forest National Park (Arizona, USA) and Implications for Regional and Global Correlations in the Late Triassic. Geochemistry, Geophysics, Geosystems [P. Mannion/G. Varnham] | |
66904 | B. T. Kligman, A. D. Marsh, and W. G. Parker. 2018. First records of diapsid Palacrodon from the Norian, Late Triassic Chinle Formation of Arizona, and their biogeographic implications. Acta Palaeontologica Polonica 63(1):117-127 [A. Dunhill/B. Allen] | |
14122 | ETE | R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/P. Wagner] |
44702 | S. G. Lucas. 1993. The Chinle Group: revised stratigraphy and biochronology of Upper Triassic nonmarine strata in the western United States. In M. Morales (ed.), Aspects of Mesozoic Geology and Paleontology of the Colorado Plateau. Museum of Northern Arizona Bulletin 59:27-50 [M. Carrano/M. Carrano] | |
25567 | ETE | S. G. Lucas, A. B. Heckert, and A. P. Hunt. 1997. Stratigraphy and biochronological significance of the Late Triassic Placerias quarry, eastern Arizona (U.S.A.). Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 203(1):23-46 [M. Carrano/M. Carrano] |
31640 | S. G. Lucas, A. P. Hunt, and J. A. Spielmann. 2007. A new aetosaur from the Upper Triassic (Adamanian: Carnian) of Arizona. In S. G. Lucas, J. A. Spielmann (eds.), Triassic of the American West, New Mexico Museum of Natural History and Science Bulletin 40:241-247 [R. Butler/R. Butler] | |
34225 | J. S. Mitchell, A. B. Heckert, and H.-D. Sues. 2010. Grooves to tubes: evolution of the venom delivery system in a Late Triassic reptile. Naturwissenschaften 97:1117-1121 [R. Butler/R. Butler/R. Butler] | |
32082 | P. A. Murry. 1987. New reptiles from the Upper Triassic Chinle Formation of Arizona. Journal of Paleontology 61(4):773-786 [R. Butler/R. Butler] | |
12930 | ETE | P. A. Murry and R. A. Long. 1989. Geology and paleontology of the Chinle Formation, Petrified Forest National Park and vicinity, Arizona and a discussion of vertebrate fossils of the southwestern Upper Triassic. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque 29-64 [M. Carrano/M. Carrano/M. Carrano] |
24249 | ETE | S. J. Nesbitt, R. B. Irmis, and W. G. Parker. 2007. A critical re-evaluation of the Late Triassic dinosaur taxa of North America. Journal of Systematic Palaeontology 5(2):209-243 [M. Carrano/M. Carrano] |
30105 | S. J. Nesbitt, R. B. Irmis, W. G. Parker, N. D. Smith, A. H. Turner and T. Rowe. 2009. Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America. Journal of Vertebrate Paleontology 29(2):498-516 [R. Butler/R. Butler/M. Carrano] | |
31327 | S. J. Nesbitt, M. R. Stocker, B. J. Small and A. Downs. 2009. The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes). Zoological Journal of the Linnean Society 157:814-864 [R. Butler/R. Butler/R. Butler] | |
31632 | W. G. Parker. 2005. Faunal review of the Upper Triassic Chinle Formation of Arizona. In R. D. McCord (ed.), Vertebrate Paleontology of Arizona, Mesa Southwest Museum Bulletin 11:34-54 [R. Butler/R. Butler] | |
32140 | W. G. Parker. 2008. Description of new material of the aetosaur Desmatosuchus spuriensis (Archosauria: Suchia) from the Chinle Formation of Arizona and a revision of the genus. PaleoBios 28:1-40 [R. Butler/R. Butler] | |
32240 | S. Renesto, J. A. Spielmann, S. G. Lucas and G. T. Spagnoli. 2010. The taxonomy and paleobiology of the Late Triassic (Carnian-Norian: Adamanian-Apachean) drepanosaurs (Diapsida: Archosauromorpha: Drepanosauromorpha). New Mexico Museum of Natural History and Science, Bulletin 46:1-81 [R. Butler/R. Butler] | |
32083 | S. C. Renesto, J. A. Spielmann, and S. G. Lucas. 2009. The oldest record of drepanosaurids (Reptilia, Diapsida) from the Late Triassic (Adamanian Placerias Quarry, Arizona, USA) and the stratigraphic range of the Drepanosauridae. Neues Jahrbuch für Paläontologie und Geologie, Abhandlungen 252(3):315-325 [R. Butler/R. Butler] | |
79087 | J. H. Stewart, F. G. Poole, and R. F. WIlson. 1972. Stratigraphy and origin of the Chinle Formation and related Upper Triassic strata in the Colorado Plateau region. United States Geological Survey Professional Paper 690:1-336 [M. Carrano/M. Carrano] | |
75609 | M. R. Stocker, S. J. Nesbitt, B. T. Kligman, D. J. Paluh, A. D. Marsh, D. C. Blackburn, and W. G. Parker. 2019. The earliest equatorial record of frogs from the Late Triassic of Arizona. Biology Letters 15(2):20180922 [B. Gee/B. Gee] | |
32084 | H.-D. Sues. 1996. A reptilian tooth with apparent venom canals from the Chinle Group (Upper Triassic) of Arizona. Journal of Vertebrate Paleontology 16:571-572 [R. Butler/R. Butler] | |
11081 | ETE | F. A. Tannenbaum. 1983. The microvertebrate fauna of the Placerias and Downs Quarries, Chinle Formation (Upper Triassic) near St. Johns, Arizona. University of California, Berkeley 1-117 [M. Carrano/M. Carrano/M. Carrano] |
35610 | J. C. Weinbaum. 2011. The skull of Postosuchus kirkpatricki (Archosauria: Paracrocodyliformes) from the Upper Triassic of the United States. PaleoBios 30(1):18-44 [R. Butler/R. Butler] | |
23520 | ETE | D. B. Weishampel, P. M. Barrett, R. A. Coria, J. Le Loeuff, X. Xu, X. Zhao, A. Sahni, E. M. P. Gomani, and C. R. Noto. 2004. Dinosaur distribution. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 517-606 [M. Carrano/M. Carrano] |
37966 | S. P. Welles. 1972. Fossil-hunting for tetrapods in the Chinle Formation: a brief pictorial history. In C. S. Breed & W. J. Breed (ed.), Investigations in the Triassic Chinle Formation. Museum of Northern Arizona Bulletin 47:13-18 [M. Carrano/M. Carrano] |