Verdigris Coulee (UA-MR-6) (Cretaceous of Canada)

Also known as UALVP MR-6

Where: Alberta, Canada (49.1° N, 111.8° W: paleocoordinates 54.4° N, 73.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Deadhorse Coulee Member (Milk River Formation), Late/Upper Santonian (85.8 - 83.5 Ma)

• Upper part of formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; brown, gray, argillaceous sandstone and sandy shale

• The upper member [of the Milk River Formation] is composed of nonmarine, drab gray, brown, and dark gray argillaceous sandstones and sandy shale with streaks of impure lignite.

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve,

Primary reference: R. C. Fox. 1976. Additions to the mammalian local fauna from the Upper Milk River Formation (Upper Cretaceous), Alberta. Canadian Journal of Earth Sciences 13:1105 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14425: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Erin Leckey, Roger Benson, Matthew Carrano and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Aspidorhynchiformes - Aspidorhynchidae
 Teleostei -
Teleostei "indet. U-4"2 Müller 1846
"type U-4"
Teleostei "indet. O"2 Müller 1846
"type O"
Elopomorpha indet.2 Greenwood et al. 1966
 Elopiformes -
? Ostariostoma sp.2 Schaeffer 1949
Ostariostoma sp.2 Schaeffer 1949
 Ellimmichthyiformes -
Horseshoeichthys sp.2 Newbrey et al. 2010
 Ostariophysi -
Otophysa "indet. U-3/BvD"2
"Teleost U-3/BvD"
 Acanthomorphata -
"Acanthomorpha indet." = Acanthomorphata2
"Acanthomorpha indet." = Acanthomorphata2 Rosen 1973
 Esociformes - Esocidae
Estesesox foxi2 Wilson et al. 1992
 Osteoglossiformes -
Wilsonichthys sp.2 Murray et al. 2016
 Hiodontiformes - Hiodontidae
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.2 Cuvier 1825 gar
 Amiiformes - Amiidae
Amiinae indet.2 Bonaparte 1837 bowfin
Mammalia
 Eutriconodonta - Triconodontidae
? Triconodontidae indet. Marsh 1887 mammal
UA 12084
Alticonodon lindoei Fox 1969 mammal
 Theriamorpha -
Potamotelses aquilensis n. sp.5 Fox 1972 mammal
 Theriamorpha - Picopsidae
cf. Picopsis sp.7 Fox 1980 mammal
Picopsis pattersoni n. sp.7 Fox 1980 mammal
 Theriamorpha -
Theria indet. Parker and Haswell 1897 mammal
UA 12088
 Theriamorpha - Stagodontidae
Eodelphis sp.4 Matthew 1916 metatherian
 Theriamorpha - Pediomyidae
Iqualadelphis lactea n. sp.8 Fox 1987 metatherian
UAVP 22823-30
 Theriamorpha -
"Pediomys exiguus" = Apistodon exiguus4
"Pediomys exiguus" = Apistodon exiguus4 Fox 1971 metatherian
 Theriamorpha - Aquiladelphidae
Aquiladelphis incus4 Fox 1971 metatherian
Aquiladelphis minor4 Fox 1971 metatherian
 Theriamorpha - Alphadontidae
Alphadontidae indet.1, Albertatherium primus n. sp.4, "Alphadon creber n. sp." = Varalphadon creber4
Alphadontidae indet.1 Marshall et al. 1990 metatherian
Albertatherium primus n. sp.4 Fox 1971 metatherian
"Alphadon creber n. sp." = Varalphadon creber4 Fox 1971 metatherian
 Theriamorpha - Spalacotheriidae
Symmetrodontoides canadensis n. sp. Fox 1976 mammal
 Multituberculata -
Cimexomys antiquus n. sp.3, "Cimexomys magister n. sp." = Paracimexomys magister3
Cimexomys antiquus n. sp.3 Fox 1971 multituberculate
"Cimexomys magister n. sp." = Paracimexomys magister3 Fox 1971 multituberculate
 Multituberculata - Cimolomyidae
? Cimolomys "sp. A"3 Marsh 1889 multituberculate
? Cimolomys "sp. B"3 Marsh 1889 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon electus3 Fox 1971 multituberculate
Cimolodon similis n. sp.3 Fox 1971 multituberculate
 Multituberculata - Neoplagiaulacidae
? Mesodma sp.3 Jepsen 1940 multituberculate
Mesodma senecta3 Fox 1971 multituberculate
Reptilia
 Squamata - Iguanidae
Iguanidae "indet. A"10 Oppel 1811 squamates
"genus and species new A"; UALVP 29908 (partial left maxilla)
Cnephasaurus locustivorus n. gen. n. sp.10 Gao and Fox 1996 squamates
UALVP 29921 (holotype right maxilla), 33386 (partial maxilla)
 Squamata - Teiidae
Sphenosiagon simplex10 Gao and Fox 1991 squamates
UALVP 29836-29837 (partial dentaries)
 Squamata - Scincidae
Penemabuya antecessor n. gen. n. sp.10, Aocnodromeus corrugatus n. gen. n. sp.10
Penemabuya antecessor n. gen. n. sp.10 Gao and Fox 1996 skink
UALVP 29789 (holotype dentary), 29788, 29827-29828, and several unnumbered jaw fragments
Aocnodromeus corrugatus n. gen. n. sp.10 Gao and Fox 1996 skink
UALVP 29905 (holotype left dentary), 29906 (left dentary)
 Squamata - Aniliidae
Aniliidae indet.6 Fitzinger 1826 pipe snake
isolated vertebra (UA 12019)
 Squamata -
Coniophis cf. precedens6 Marsh 1892 snake
isolated vertebrae
 Squamata - Chamopsiidae
Chamops sp.10 Marsh 1892 squamates
partial maxillae/dentaries
 Squamata - Necrosauridae
Necrosauridae indet.10 Hoffstetter 1943 squamates
"gen. et sp. nov."; UALVP 29787, 33383 (right dentaries)
 Squamata - Xenosauridae
Xenosauridae indet.10 Cope 1866 squamates
"gen. et sp. indet."; UALVP 29914 (jugal), 29915-29918 (maxilla) plus unnumbered specimens
 Squamata - Anguidae
Anguidae indet.10 Gray 1825 squamates
"gen. et sp. indet."; UALVP 33379 (left dentary) plus many unnumbered fragments
Amphibia
 Salientia -
Anura indet.2 Fischer von Waldheim 1813 frog
 Caudata - Urodela
Urodela indet.2 salamander
 Temnospondyli - Albanerpetontidae
Albanerpeton sp.2 Estes and Hoffstetter 1976 tetrapod
Albanerpeton galaktion n. sp.9 Fox and Naylor 1982 tetrapod
UA 16203-16235, 16237-16242
Albanerpeton nexuosus11 Estes 1981 tetrapod
Chondrichthyes
 Orectolobiformes - Orectolobidae
Orectolobidae indet.2 Jordan and Fowler 1903 wobbegong
 Rajiformes -
Pseudomyledaphus madseni2 Kirkland et al. 2013 guitarfish
 Hybodontiformes - Lonchidiidae
Lonchidion sp.2 Estes 1964 elasmobranch