Also known as Big Sand Coulee; Locality No. 3; SC-187
Where: Park County, Wyoming (44.9° N, 108.9° W: paleocoordinates 50.8° N, 88.4° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)
• low within chron C25r according to Butler et al. 1981 but in the middle of C25r according to Secord et al. 2006
•
•"Polecat Bench Fm, Silver Coulee beds" according to Gilmore 1942
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by G. L. Jepsen; reposited in the UMMP
• Princeton University collection
Primary reference: K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 15049: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Terri Cleary, K. Christopher Beard, Patricia Holroyd, Robin Whatley, Evangelos Vlachos and Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Scapherpeton tectum2 Cope 1876 salamander PU 20583, three broken vertebrae, an atlas, an ilium, and a rib.
Amphiuma jepseni n. sp.2 Estes 1969 amphiuma PU 14666 (holotype), partial vertebral column with at least 14 associated but dislocated vertebrae in a single block of matrix, associated left quadrate and left dentary; 14668, partial skull and associated mandibles; 16788, group of dislocated vertebrae from sacral region of young individual mingled with vertebrae of Opisthotriton kayi
| |
Opisthotriton kayi2 Auffenberg 1961 salamander PU 14575, articulated skeleton, including poorly-preserved skull, mandibles, atlas, at least 35 presacral vertebrae, many in natural articulation, fragments of hyobranchial skeleton, a humerus, and a single rib; PU 14643, partial skeleton of a somewhat smaller individual, including skull, mandibles, partial hyobranchial skeleton in natural articulation with skull, atlas and five associated vertebrae in natural articulation; 20584, fused articular-prearticular, otoccipitals, associated with material of Amphiuma jepseni noted below; 21781, two vertebral centra associated with a block of dislocated vertebrae, mostly young Amphiuma jepseni.
| |
Anura indet.2 Fischer von Waldheim 1813 frog PU 14662, distal end of right radioulna; 14663, proximal end of left radioulna; 14669 (part), phalanx; 13372, right maxilla.
| |
Discoglossidae indet.2 Günther 1859 painted frog PU 14670, distal end of right humerus. Undescribed genus and species.
| |
Eorhinophrynus sp.2 Hecht 1959 burrowing toad PU 14664, left humerus; 14665, distal end of left humerus; 14669 (part), sacral vertebra.
| |
Reptilia | |
Odaxosaurus piger8 Gilmore 1928 squamates PU 13371, left maxilla; 14562, left maxilla; 14565, right maxilla, posterior part of parietal, one dermal scute; 14574, left maxilla, anterior end of right dentary; 16790, left dentary; 17147, left dentary; 17148, left dentary fragment and coronoid; 18578, left dentary fragment and osteoscutes; 14667, right pterygoid; 16761, parietal.
"Peltosaurus jepseni n. sp." = Proxestops silberlingii4 Gilmore 1938 squamates Recombined into Proxestops jepseni by Gauthier (1982), synonymised into Proxestops silberlingii by Sullivan (1991). PU 14565 (originally holotype); UCMP 99851, isolated osteoderms; UCMP 100163, right maxilla missing all teeth, premaxillary, posterior and nasal processes; UCMP 100164, worn fragment from posterior end of right maxilla; UCMP 115128, posterior process of left maxilla; UCMP 115130, fragment from middle of right maxilla. Some specimens here removed and reclassified as Xestops savagei by ref. 60296 in coll. 15451.
| |
Restes rugosus n. gen. n. sp.3
Restes rugosus n. gen. n. sp.3 Gauthier 1982 squamates PU 14559, posterior half of right maxilla (holotype); 14560, right maxilla of smaller individual; 17144, left dentary fragment; 14640, disarticulated skull, jaws, and fragments of skeleton, including maxilla, prefrontals, frontal, right jugal, left pterygoid, dentaries, right prearticular- surangular; coronoids, right angular, centrum of axis, several cervical vertebrae, fragmentary left ilium and unidentified fragments.
| |
Provaranosaurus acutus n. gen. n. sp.4
Provaranosaurus acutus n. gen. n. sp.4 Gilmore 1942 squamates PU 14243 (holotype), left maxilla; 14561, anterior portion of left dentary; 17145, questionably referred fragment of left maxilla of large specimen
| |
Oligodontosaurus wyomingensis n. gen. n. sp.4
Oligodontosaurus wyomingensis n. gen. n. sp.4 Gilmore 1942 worm lizard YPM-PU 14246 (holotype), left mandible
| |
"Haplodontosaurus excedens" = Harpagosaurus excedens4
| |
| |
| |
Mammalia | |
| |
Phenacodaptes sabulosus n. sp. Jepsen 1930 elephant shrew | |
| |
Carpolestes dubius n. sp.
Carpolestes dubius n. sp. Jepsen 1930 primate | |
Plesiadapis fodinatus n. sp. Jepsen 1930 primate | |
Micromomys silvercouleei n. sp.
Micromomys silvercouleei n. sp. Szalay 1973 primate | |
Litolestes ignotus n. sp.
Litolestes ignotus n. sp. Jepsen 1930 hedgehog | |
| |
Leptacodon packi n. sp. Jepsen 1930 placental | |
Dissacus argenteus n. sp.9
| |
| |
| |
Propalaeanodon schaffi Rose 1979 placental | |
| |
| |
Unuchinia sp. Simpson 1937 eutherian | |
| |
| |
? Palaeictops sp. Matthew 1899 eutherian | |
| |
Peradectes elegans Matthew and Granger 1921 marsupial | |
Microcosmodon conus n. sp., Pentacosmodon pronus n. sp.
Microcosmodon conus n. sp. Jepsen 1930 multituberculate
Pentacosmodon pronus n. sp. Jepsen 1940 multituberculate | |
Prochetodon cavus n. sp.
Prochetodon cavus n. sp. Jepsen 1940 multituberculate | |
Ectypodus powelli n. sp., "Parectypodus laytoni n. sp." = Ectypodus laytoni, Mimetodon churchilli n. sp., Neoplagiaulax hazeni n. sp.
Ectypodus powelli n. sp. Jepsen 1940 multituberculate
"Parectypodus laytoni n. sp." = Ectypodus laytoni Jepsen 1940 multituberculate
Mimetodon churchilli n. sp. Jepsen 1940 multituberculate
Neoplagiaulax hazeni n. sp. Jepsen 1940 multituberculate | |
Neoliotomus conventus Jepsen 1930 multituberculate |