Engdahl Anthills 3 (Cretaceous of the United States)

Also known as UCMP V-73077

Where: Garfield County, Montana (47.6° N, 107.1° W: paleocoordinates 54.3° N, 80.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Upper Member (Hell Creek Formation), Lancian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: mesofossils

Reposited in the UCMP

Collection methods: bulk, surface (float), anthill, sieve,

Primary reference: J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14535: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Gnathostomata
  -
Mammalia
 Polydolopimorphia - Glasbiidae
Glasbius twitchelli Archibald 1982 metatherian
 Theriamorpha - Alphadontidae
Alphadon sp.1 Simpson 1927 metatherian
 Theriamorpha - Gypsonictopidae
Gypsonictops cf. illuminatus Lillegraven 1969 eutherian
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate
Reptilia
 Squamata - Xenosauridae
Exostinus lancensis4 Gilmore 1928 squamates
 Squamata -
Paraderma bogerti4 Estes 1964 squamates
 Squamata - Anguidae
Odaxosaurus piger4 Gilmore 1928 squamates
 Squamata -
Parasaniwa wyomingensis4 Gilmore 1928 squamates
 Testudinata -
Compsemys victa4 Leidy 1856 turtle
 Testudines -
Cryptodira indet.4 Cope 1868 turtle
 Testudines - Trionychidae
Trionychidae indet.4 Gray 1825 softshell turtle
 Loricata -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4 Gilmore 1910 crocodilian
 Crocodylia - Alligatoridae
Brachychampsa montana4 Gilmore 1911 crocodilian
 Crocodylia - Crocodylidae
 Ornithischia -
Thescelosaurus sp.4 Gilmore 1913 ornithopod
 Ornithischia - Hypsilophodontidae
Hypsilophodontidae indet.4 hypsilophodontid
 Ornithischia - Hadrosauridae
Hadrosaurinae indet.4 Lambe 1918 hadrosaurine
 Ornithischia -
 Theropoda -
 Theropoda - Coeluridae
Coeluridae indet.4 Marsh 1881 coelurid
 Theropoda - Dromaeosauridae
Dromaeosauridae indet.4 Colbert and Russell 1969 maniraptoran
cf. Richardoestesia isosceles5 Sankey 2001 maniraptoran
Aves
  -
Aves indet.4 Linnaeus 1758 bird
Reptilia
 Theropoda - Caenagnathidae
Chirostenotes sp.4 Gilmore 1924 maniraptoran
 Sauria -
Sauria indet.4 diapsid
? Sauria indet.4 diapsid
Amphibia
 Proteida - Batrachosauroididae
Opisthotriton kayi4 Auffenberg 1961 salamander
 Caudata - Urodela
Scapherpeton tectum4 Cope 1876 salamander
Habrosaurus dilatus4 Gilmore 1928 siren
Actinopteri
 Amiiformes - Amiidae
Amia uintaensis4 Leidy 1873 bowfin
Amia fragosa4 Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp.4 Agassiz 1843 gar
Lepisosteus occidentalis4 Leidy 1856 gar
 Aspidorhynchiformes - Aspidorhynchidae
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus pustulosus3 Cook et al. 2014 guitarfish
UCMP 128737, 1 tooth; UCMP 120200, 188 complete and partial teeth; UCMP 120201, 1 denticle
 Hybodontiformes - Lonchidiidae
Lonchidion selachos4 Estes 1964 elasmobranch