PBDB Collection

Topham (Miocene of Canada)

Where: Saskatchewan, Canada (49.6° N, 109.0° W)

• Paleocoordinates: 53.9° N, 100.4° W (Wright 2013)

• coordinate based on nearby landmark

When: Cypress Hills Formation, Hemingfordian (20.4 - 16.0 Ma)

Environment/lithology: terrestrial

Size classes: macrofossils, mesofossils

Primary reference: T. Skwara. 1988. Mammals of the Topham Local Fauna: Early Miocene (Hemingfordian), Cypress Hills Formation, Saskatechewan. Natural History Contributions 9:1-169 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18003: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC0 (CC0)

Taxonomic list

• NISP 307 (valid genus or species level i.d.s only)
"? Paradjidaumo sp.", NISP 4, is possibly reworked from underlying Chadronian deposits that yield P. hansonorum

"Heliscomys cf. tenuiceps" (NISP 5): compared to the florentiamyids Ecclesimus tenuiceps and Kirkomys schlaikjeri, but Korth et al. 1990 specifically state that no florentiamyids are present

Show authors, comments, and common names

Mammalia
Rodentia - Sciuridae	Protospermophilus sp., Protospermophilus kelloggi, Sciurion campestre n. gen. n. sp., "Tamiini indet." = Marmotini, Miospermophilus wyomingensis Protospermophilus sp. Gazin 1930 squirrel small Protospermophilus kelloggi Black 1963 squirrel Sciurion campestre n. gen. n. sp. Skwara 1986 squirrel "Tamiini indet." = Marmotini squirrel "Tamias" sp., can't determine from figures and descriptions what this is, although it seems definitely not to be Nototamias hulberti or Tamias ateles: JA 1.7.96 Miospermophilus wyomingensis Black 1963 squirrel
Rodentia -	Geomyoidea indet.¹, Geomyoidea indet.¹ Geomyoidea indet.¹ Bonaparte 1845 rodent Geomyoidea indet.¹ Bonaparte 1845 rodent
Rodentia - Eomyidae	Leptodontomys sp., Pseudotheridomys sp. Leptodontomys sp. Shotwell 1956 rodent Pseudotheridomys sp. Schlosser 1926 rodent
Rodentia - Geomyidae	Geomyidae indet. Geomyidae indet. Bonaparte 1845 pocket gopher
Rodentia - Heteromyidae	Stratimus strobeli³ Stratimus strobeli³ Korth et al. 1990 rodent "Proheteromys sp., intermediate"
Rodentia - Heliscomyidae	Heliscomys sp.⁴ Heliscomys sp.⁴ Cope 1873 rodent
Rodentia - Castoridae	Euroxenomys sp.¹ Euroxenomys sp.¹ Samson and Radulesco 1973 beaver
Rodentia - Mylagaulidae	Mesogaulus paniensis² Mesogaulus paniensis² Matthew 1902 rodent
Rodentia - Zapodidae	Zapodidae indet.¹, "Plesiosminthus clivosus" = Schaubeumys clivosus¹ Zapodidae indet.¹ Coues 1875 jumping mouse "Plesiosminthus clivosus" = Schaubeumys clivosus¹ Galbreath 1953 jumping mouse
Rodentia - Cricetidae	Leidymys cf. blacki, Yatkolamys edwardsi Leidymys cf. blacki Macdonald 1963 rodent Yatkolamys edwardsi Martin and Corner 1980 rodent
Lagomorpha - Leporidae	Megalagus cf. dawsoni, ? Desmatolagus schizopetrus Megalagus cf. dawsoni Black 1961 rabbit ? Desmatolagus schizopetrus Dawson 1965 rabbit
Lagomorpha - Ochotonidae	Oreolagus cf. nebrascensis Oreolagus cf. nebrascensis McGrew 1941 pika
Soricomorpha - Proscalopidae	Mesoscalops sp. Mesoscalops sp. Reed 1960 placental
Soricomorpha - Talpidae	? Scalopoides sp., ? Mystipterus sp. ? Scalopoides sp. Wilson 1960 mole ? Mystipterus sp. Hall 1930 mole
Tribosphenida - Erinaceidae	Hibbarderix sp. Hibbarderix sp. Martin and Green 1984 hedgehog
Artiodactyla - Entelodontidae	Entelodontidae indet. Entelodontidae indet. Lydekker 1883 even-toed ungulate
Artiodactyla - Camelidae	Michenia sp., ? Miolabis sp. Michenia sp. Frick and Taylor 1971 camel ? Miolabis sp. Hay 1899 camel
Artiodactyla - Merycoidodontidae	Merycoidodontidae indet., ? Merychyus sp. Merycoidodontidae indet. Cook 1912 oreodont small ? Merychyus sp. Leidy 1858 oreodont
Artiodactyla - Dromomerycidae	? Bouromeryx sp., Bouromeryx americanus⁵ ? Bouromeryx sp. Skinner et al. 1977 ruminant Bouromeryx americanus⁵ Douglass 1899 ruminant
Artiodactyla - Palaeomerycidae	? Sinclairomeryx sp. ? Sinclairomeryx sp. Frick 1937 ruminant
Artiodactyla - Moschidae	Blastomeryx sp., Parablastomeryx sp. Blastomeryx sp. Cope 1877 musk deer compared to B. elegans and B. gemmifer Parablastomeryx sp. Frick 1937 musk deer
Artiodactyla - Protoceratidae	Protoceratidae indet. Protoceratidae indet. Marsh 1891 protoceratid
Perissodactyla - Equidae	Equidae indet.¹, Hypohippus cf. equinus Equidae indet.¹ Gray 1821 horse Hypohippus cf. equinus Scott 1893 anchitheriine horse
Carnivora - Mustelidae	Mustelidae indet. Mustelidae indet. Fischer 1817 mustelid carnivore
Carnivora - Canidae	Canidae indet. Canidae indet. Fischer de Waldheim 1817 canid

¹Alroy 2002; ²Korth 1992; ³Korth et al. 1990; ⁴Korth et al. 1991; ⁵Prothero and Liter 2008