PBDB Collection

Swift Current Creek (Eocene of Canada)

Where: Saskatchewan, Canada (50.2° N, 107.6° W: paleocoordinates 52.8° N, 94.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cypress Hills Formation, Late/Upper Uintan (46.2 - 39.7 Ma)

• locality occurs "in the upper beds" of a 15 m section

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and conglomerate

• environment of formation was "braided streams"

• "unconsolidated lens" in a formation of "sands, gravels, and conglomerates and sandstones with calcareous cement"

Size classes: macrofossils, mesofossils

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

Primary reference: J. E. Storer. 1984. Mammals of the Swift Current Creek Local Fauna (Eocene: Uintan), Saskatchewan. Natural History Contributions, Museum of Natural History, Regina 7:1-158 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 16626: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes a single quarry

•reported NISP of 1120, but 125 are of generically indeterminate taxa, for a total of 995

•type of "Trigenicus" mammifer mentioned by Frick 1937 and Scott 1940 probably from Calf Creek or another Chadronian locality

Show authors, comments, and common names

Mammalia
Theriamorpha - Herpetotheriidae	"Copedelphys innominata" = Herpetotherium innominatum¹, Herpetotherium knighti¹, Herpetotherium marsupium¹ "Copedelphys innominata" = Herpetotherium innominatum¹ Simpson 1928 marsupial Herpetotherium knighti¹ McGrew et al. 1959 marsupial Herpetotherium marsupium¹ Troxell 1923 marsupial
Theriamorpha - Peradectidae	Peradectes californicus, "Nanodelphys cf. hunti" = Nanodelphys huntii¹ Peradectes californicus Stock 1936 marsupial "Nanodelphys cf. hunti" = Nanodelphys huntii¹ Cope 1873 marsupial
Insectivora -	Insectivora indet. Insectivora indet. Bowdich 1821 insectivoran
Chiroptera -	Chiroptera "indet. sp. 1", Chiroptera "indet. sp. 2" Chiroptera "indet. sp. 1" Blumenbach 1779 bat Chiroptera "indet. sp. 2" Blumenbach 1779 bat
Chiroptera - Molossidae	Wallia scalopidens Wallia scalopidens Storer 1984 free-tailed bat originally said to be a bat, but assigned to the Proscalopidae by Storer 1996
Condylarthra - Hyopsodontidae	Hyopsodus fastigatus n. sp.⁴ Hyopsodus fastigatus n. sp.⁴ Russell and Wickenden 1933 condylarth described by Russell and Wickenden 1933
Acreodi - Mesonychidae	Harpagolestes sp. Harpagolestes sp. Wortman 1901 condylarth
Carnivora -	Caniformia "indet. sp. 1", Caniformia "indet. sp. 1" Caniformia "indet. sp. 1" Kretzoi 1943 carnivoran possibly includes Hesperocyon Caniformia "indet. sp. 1" Kretzoi 1943 carnivoran
Carnivora - Canidae	Hesperocyon sp.² Hesperocyon sp.² Scott 1890 canid
Carnivora - Miacidae	Miocyon sp.³ Miocyon sp.³ Matthew 1909 carnivoran
Artiodactyla - Oromerycidae	Oromerycidae indet. Oromerycidae indet. Gazin 1955 even-toed ungulate
Artiodactyla - Leptochoeridae	Ibarus ignotus Ibarus ignotus Storer 1984 even-toed ungulate
Artiodactyla - Homacodontidae	Auxontodon processus, Mytonomeryx scotti Auxontodon processus Storer 1984 even-toed ungulate Mytonomeryx scotti Gazin 1955 even-toed ungulate
Artiodactyla - Agriochoeridae	Protoreodon pumilus Protoreodon pumilus Marsh 1875 agriochoerid
Artiodactyla - Protoceratidae	Leptoreodon marshi Leptoreodon marshi Wortman 1898 protoceratid
Perissodactyla - Brontotheriidae	Brontotheriidae indet. Brontotheriidae indet. Marsh 1873 brontothere
Perissodactyla - Tapiridae	Colodon cf. kayi, Dilophodon sp. Colodon cf. kayi Hough 1955 tapir Dilophodon sp. Scott 1883 tapir
Perissodactyla - Equidae	Epihippus cf. gracilis Epihippus cf. gracilis Marsh 1871 horse
Theriamorpha - Erinaceidae	Erinaceidae indet. Erinaceidae indet. Fischer von Waldheim 1817 hedgehog
Theriamorpha - Geolabididae	Centetodon aztecus Centetodon aztecus Lillegraven et al. 1981 placental
Theriamorpha - Soricidae	Soricidae indet., Domnina sp. Soricidae indet. Fischer 1814 shrew "sp. A" Domnina sp. Cope 1873 shrew
Theriamorpha - Oligoryctidae	Oligoryctes sp. Oligoryctes sp. Hough 1956 placental
Theriamorpha - Nyctitheriidae	Nyctitherium sp. Nyctitherium sp. Marsh 1872 placental
Theriamorpha - Sespedectidae	Sespedectes sp.⁷ Sespedectes sp.⁷ Stock 1935 placental
Lagomorpha - Leporidae	Leporidae indet., "Procaprolagus vusillus" = Desmatolagus vusillus Leporidae indet. Fischer de Waldheim 1817 rabbit "Procaprolagus vusillus" = Desmatolagus vusillus Storer 1984 rabbit
Rodentia - Eomyidae	Protadjidaumo altilophus, Metanoiamys fugitivus¹ Protadjidaumo altilophus Storer 1984 rodent Metanoiamys fugitivus¹ Storer 1984 rodent
Rodentia - Eutypomyidae	Janimus mirus Janimus mirus Storer 1984 rodent
Rodentia - Aplodontidae	Prosciurinae indet. Prosciurinae indet. Wilson 1949 mountain beaver
Rodentia - Cylindrodontidae	Pseudocylindrodon citofluminis Pseudocylindrodon citofluminis Storer 1984 rodent
Rodentia - Ischyromyidae	Pseudotomus cf. eugenei, "Anonymus sp." = Churcheria⁷, Leptotomus sp., Leptotomus guildayi, Microparamys dubius, Microparamys solidus Pseudotomus cf. eugenei Burke 1935 rodent "Anonymus sp." = Churcheria⁷ Storer 2002 rodent Leptotomus sp. Matthew 1910 rodent Leptotomus guildayi Black 1971 rodent Microparamys dubius Wood 1949 rodent Microparamys solidus Storer 1984 rodent
Theriamorpha - Plagiomenidae	Thylacaelurus campester Thylacaelurus campester Storer 1984 placental
Primates - Plesiadapidae	Trogolemur storeri n. sp.⁶ Trogolemur storeri n. sp.⁶ Perry et al. 2023 primate
Primates - Omomyidae	Omomyidae indet., Saskomomys lindsayorum n. sp.⁶, Walshina mcgrewi⁶ Omomyidae indet. Gazin 1958 tarsier "sp. 2" Saskomomys lindsayorum n. sp.⁶ Perry et al. 2023 tarsier presumably "sp. 1" of Storer 1984 Walshina mcgrewi⁶ Robinson 1968 tarsier
Cimolesta - Apatemyidae	Apatemys hendryi Apatemys hendryi Robinson 1966 eutherian
Theriamorpha - Leptictidae	Leptictidae indet.¹, Didelphodus serus, Palaeictops borealis Leptictidae indet.¹ Gill 1872 eutherian Didelphodus serus Storer 1984 eutherian Palaeictops borealis Russell 1965 eutherian
Multituberculata - Neoplagiaulacidae	Ectypodus lovei Ectypodus lovei Sloan 1966 multituberculate
Reptilia
Testudinata - Baenidae	cf. Baena sp.⁵ cf. Baena sp.⁵ Leidy 1870 turtle
Testudines -	Testudines indet.⁵ Testudines indet.⁵ Batsch 1788 turtle
Testudines - Testudinidae	Testudinidae indet.⁵ Testudinidae indet.⁵ Batsch 1788 turtle
Testudines - Emydidae	Emydidae indet.⁵ Emydidae indet.⁵ Rafinesque 1815 turtle
Testudines - Trionychidae	cf. Apalone sp.⁵ cf. Apalone sp.⁵ Rafinesque 1832 softshell turtle
Testudines - Carettochelyidae	cf. Pseudanosteira sp.⁵ cf. Pseudanosteira sp.⁵ Clark 1932 turtle

¹Alroy 2002; ²Bryant 1991; ³Friscia and Rasmussen 2010; ⁴Gazin 1968; ⁵Hutchison and Storer 1998; ⁶Perry et al. 2023; ⁷Storer 1996