Where: Logan County County, Colorado (40.7° N, 103.2° W: paleocoordinates 41.9° N, 95.3° W)
• coordinate based on political unit
When: Oreodon beds zone, Brule Formation (White River Group), Orellan (33.9 - 33.3 Ma)
• 'Oreodon beds, White River Formation, Oligocene'
•
•= Brule Formation (Hoganson et al. 1998)
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by E. D. Cope in 1873
Primary reference: C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 118198: authorized by Roger Benson, entered by Roger Benson on 08.10.2011, edited by Terri Cleary and Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
Neurodromicus dorsalis n. gen. n. sp.2, Calamagras murivorus n. gen. n. sp.2, Calamagras talpivorus n. sp.2, Calamagras angulatus n. sp.2
Calamagras murivorus n. gen. n. sp.2 Cope 1873 dwarf boa AMNH 1603, six articulated vertebrae. Co-types (2) of C. truxalis likely also from this area: AMNH 1603, 1657, plus AMNH 1658, all vertebrae "from the beds of the White River epoch in northeast Colorado"
| |
Cremastosaurus carinicollis n. gen. n. sp.
Cremastosaurus carinicollis n. gen. n. sp. Cope 1873 lizard AMNH 1604, intercentrum of atlas, axis, and four succeeding cervicals articulated
| |
Exostinus serratus n. gen. n. sp.
| |
Peltosaurus granulosus n. sp.
Peltosaurus granulosus n. sp. Cope 1873 squamates AMNH 1610 (holotype), premaxilla, partial maxilla, left jugal, coosified frontals, other skull fragments, three vertebrae, many dermal scutes, ribs; KU 1278, portions of right dentary (coll. Martin 1911)
| |
Aciprion formosum n. gen. n. sp.
| |
| Mammalia | |
"Hyracodon arcidens n. sp." = Hyracodon nebraskensis1
| |