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
 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
 Esociformes - Esocidae
Estesesox foxi2 Wilson et al. 1992
 Acanthomorphata -
"Acanthomorpha indet." = Acanthomorphata2
"Acanthomorpha indet." = Acanthomorphata2 Rosen 1973
 Ellimmichthyiformes -
Horseshoeichthys sp.2 Newbrey et al. 2010
 Ostariophysi -
Otophysa "indet. U-3/BvD"2
"Teleost U-3/BvD"
 Hiodontiformes - Hiodontidae
 Osteoglossiformes -
Wilsonichthys sp.2 Murray et al. 2016
 Aspidorhynchiformes - Aspidorhynchidae
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.2 Cuvier 1825 gar
 Amiiformes - Amiidae
Amiinae indet.2 Bonaparte 1837 bowfin
Amphibia
 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
 Salientia -
Anura indet.2 Fischer von Waldheim 1813 frog
 Caudata - Urodela
Urodela indet.2 salamander
Mammalia
 Theriamorpha -
Theria indet. Parker and Haswell 1897 mammal
UA 12088
 Theriamorpha - Alphadontidae
Alphadontidae indet.1, "Alphadon creber n. sp." = Varalphadon creber4, Albertatherium primus n. sp.4
Alphadontidae indet.1 Marshall et al. 1990 metatherian
"Alphadon creber n. sp." = Varalphadon creber4 Fox 1971 metatherian
Albertatherium primus n. sp.4 Fox 1971 metatherian
 Theriamorpha - Stagodontidae
Eodelphis sp.4 Matthew 1916 metatherian
 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 - Pediomyidae
Iqualadelphis lactea n. sp.8 Fox 1987 metatherian
UAVP 22823-30
 Theriamorpha - Picopsidae
cf. Picopsis sp.7 Fox 1980 mammal
Picopsis pattersoni n. sp.7 Fox 1980 mammal
 Theriamorpha -
Potamotelses aquilensis n. sp.5 Fox 1972 mammal
 Theriamorpha - Spalacotheriidae
Symmetrodontoides canadensis n. sp. Fox 1976 mammal
 Multituberculata -
"Cimexomys magister n. sp." = Paracimexomys magister3, Cimexomys antiquus n. sp.3
"Cimexomys magister n. sp." = Paracimexomys magister3 Fox 1971 multituberculate
Cimexomys antiquus n. sp.3 Fox 1971 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
 Multituberculata - Cimolomyidae
? Cimolomys "sp. A"3 Marsh 1889 multituberculate
? Cimolomys "sp. B"3 Marsh 1889 multituberculate
 Eutriconodonta - Triconodontidae
? Triconodontidae indet. Marsh 1887 mammal
UA 12084
Alticonodon lindoei Fox 1969 mammal
Reptilia
 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
 Squamata - Necrosauridae
Necrosauridae indet.10 Hoffstetter 1943 squamates
"gen. et sp. nov."; UALVP 29787, 33383 (right dentaries)
 Squamata - Scincidae
Aocnodromeus corrugatus n. gen. n. sp.10, Penemabuya antecessor n. gen. n. sp.10
Aocnodromeus corrugatus n. gen. n. sp.10 Gao and Fox 1996 skink
UALVP 29905 (holotype left dentary), 29906 (left dentary)
Penemabuya antecessor n. gen. n. sp.10 Gao and Fox 1996 skink
UALVP 29789 (holotype dentary), 29788, 29827-29828, and several unnumbered jaw fragments
 Squamata - Chamopsiidae
Chamops sp.10 Marsh 1892 squamates
partial maxillae/dentaries
 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 -
Coniophis cf. precedens6 Marsh 1892 snake
isolated vertebrae
 Squamata - Aniliidae
Aniliidae indet.6 Fitzinger 1826 pipe snake
isolated vertebra (UA 12019)
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