Where: Garfield County, Montana (47.6° N, 106.9° W: paleocoordinates 54.5° N, 79.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)
• lower part of formation
• bed-level stratigraphic resolution
Environment/lithology: crevasse splay; paleosol/pedogenic, fine-grained, gypsiferous, intraclastic siltstone
Size class: mesofossils
Preservation: mold/impression
Reposited in the UCM
Collection methods: bulk, quarrying, sieve,
Primary reference: L. E. Wilson. 2008. Comparative taphonomy and paleoecological reconstruction of two microvertebrate accumulations from the Late Cretaceous Hell Creek Formation (Maastrichtian), eastern Montana. Palaios 23:289-297 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taphonomic analysis
PaleoDB collection 85498: authorized by Matthew Carrano, entered by Matthew Carrano on 02.01.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Actinopteri | |
Holostei "indet. A" Müller 1846
Holostei "indet. B" Müller 1846 | |
Lepisosteus sp. Agassiz 1843 gar | |
Amphibia | |
Prodesmodon copei Estes 1964 salamander
Opisthotriton kayi Auffenberg 1961 salamander | |
Habrosaurus dilatus Gilmore 1928 siren
Scapherpeton tectum Cope 1876 salamander | |
Reptilia | |
Adocus sp. Cope 1868 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Basilemys sp. Hay 1902 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Baenidae indet. Cope 1882 turtle | |
Lepidosauria indet. lepidosaur | |
Tyrannosauridae indet. Osborn 1906 tyrannosaurid | |
Richardoestesia gilmorei Currie et al. 1990 maniraptoran
Richardoestesia isosceles Sankey 2001 maniraptoran
Saurornitholestes langstoni Sues 1978 maniraptoran | |
Paronychodon lacustris Cope 1876 maniraptoran | |
Ankylosauridae indet. Brown 1908 ankylosaurid | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Pachycephalosauridae indet. Sternberg 1945 ornithischian | |
Hadrosauridae indet. Cope 1869 hadrosaurid | |
Osteichthyes | |
Acipenser sp. Linnaeus 1758 sturgeon | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam |