Also known as UNSM Bx-22; UW V-34001
Where: Box Butte County, Nebraska (42.4° N, 103.3° W: paleocoordinates 43.1° N, 99.7° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Runningwater Formation, Early/Lower Hemingfordian (20.4 - 16.0 Ma)
Environment/lithology: fluvial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by D. Yatkola in 1971
Collection methods: bulk, quarrying, sieve,
• Yatkola collection is from "screened matrix"
Primary reference: D. A. Yatkola. 1976. Mid-Miocene lizards from western Nebraska. Copeia 1976(4):645-654 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 17963: authorized by John Alroy, entered by John Alroy on 19.05.2000, edited by Jonathan Marcot and Nicholas Famoso
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
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Testudinidae indet. Batsch 1788 turtle | |
Sceloporus sp., ? Holbrookia antiqua n. sp.
Sceloporus sp. Wiegmann 1828 spiny lizard
? Holbrookia antiqua n. sp. Yatkola 1976 lesser earless lizard | |
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? Gerrhonotus sp. Wiegmann 1828 alligator lizard
cf. Paragerrhonotus ricardensis Estes 1963 squamates | |
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Rhineura marslandensis n. sp.
Rhineura marslandensis n. sp. Yatkola 1976 worm lizard | |
| Mammalia | |
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"Plesiosminthus clivosus" = Schaubeumys clivosus1
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"Miotapirus marslandensis n. sp." = Nexuotapirus marslandensis7
"Miotapirus marslandensis n. sp." = Nexuotapirus marslandensis7 Schoch 1984 tapir Collected by John Graham Cooke in August 1917, approximately 18 miles (30 km) east of Agate, northwestern Nebraska (that is, near Marsland, Nebraska: see Schultz and Stout 1961, p. 49). S&S'61 p. 49 lists Marsland Quarry only
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| Amphibia | |
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Bufo sp. Laurenti 1768 toad | |
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Hylidae indet. Rafinesque 1815 tree frog | |
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Rana sp. Linnaeus 1758 frog | |
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Ambystoma aff. minshalli Tihen and Chantell 1963 mole salamander | |