Engdahl Anthills 2 (Cretaceous of the United States)

Also known as UCMP V-73076

Where: Garfield County, Montana (47.6° N, 107.1° W: paleocoordinates 54.4° N, 80.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

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 14534: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Lonchidiidae
Lonchidion selachos2 Estes 1964 elasmobranch
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus2 Cope 1876 whiptail stingray
Gnathostomata
  -
Actinopteri
 Teleostei - Aspidorhynchidae
 Teleostei -
Perciformes indet.2 Stirton 1953 perch-like fish
 Amiiformes - Amiidae
Amia fragosa2 Jordan 1927 bowfin
Amia uintaensis2 Leidy 1873 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis2 Leidy 1856 gar
Osteichthyes
 Proteida - Batrachosauroididae
Opisthotriton kayi2 Auffenberg 1961 tetrapod
 Caudata - Urodela
Habrosaurus dilatus2 Gilmore 1928 siren
Scapherpeton tectum2 Cope 1876 salamander
Reptilia
  -
Reptilia indet.2 Laurenti 1768 reptile
 Testudines - Baenidae
Thescelus insiliens2 Hay 1908 turtle
 Sauria -
 Theropoda -
 Avetheropoda - Caenagnathidae
Chirostenotes sp.2 Gilmore 1924 coelurosaur
 Avetheropoda -
cf. Paronychodon lacustris3 Cope 1876 coelurosaur
 Avetheropoda - Coeluridae
Coeluridae indet.2 Marsh 1881 coelurid
 Ornithischia - Ankylosauridae
Ankylosaurus magniventris1 Brown 1908 ornithischian
UCMP 120195
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2 Gilmore 1910 crocodilian
 Crocodylia - Alligatoridae
Brachychampsa montana2 Gilmore 1911 crocodilian
 Squamata - Anguidae
Odaxosaurus piger2 Gilmore 1928 lizard
 Squamata - Chamopsiidae
Chamops segnis2 Marsh 1892 lizard
Mammalia
 Leptictida - Gypsonictopidae
Gypsonictops cf. illuminatus Lillegraven 1969 eutherian
 Theriiformes - Peradectidae
"Pediomys hatcheri" = Aletridelphys hatcheri
"Pediomys hatcheri" = Aletridelphys hatcheri Osborn 1898 metatherian
 Multituberculata - Cimolomyidae
Meniscoessus robustus Marsh 1889 multituberculate
Essonodon browni Simpson 1927 multituberculate
 Multituberculata - Neoplagiaulacidae
Mesodma thompsoni Clemens 1964 multituberculate