Lac Pelletier Lower Fauna (Eocene of Canada)

Also known as SMNH Locs. 72G13-001, -003, -005, -006, -009, 72J04-001, 004, -006

Where: Saskatchewan, Canada (50.0° N, 107.9° W: paleocoordinates 51.9° N, 97.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Cypress Hills Formation, Duchesnean (40.4 - 37.2 Ma)

Environment/lithology: terrestrial

Size classes: macrofossils, mesofossils

Primary reference: J. E. Storer. 1987. Dental evolution and radiation of Eocene and early Oligocene Eomyidae (Mammalia, Rodentia) of North America, with new material from the Duchesnean of Saskatchewan. Dakoterra 3:108-117 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16845: authorized by John Alroy, entered by John Alroy on 12.04.1997, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• small mammals other than rodents and lagomorphs described by Storer 1995b
most specimens from 72J04-0006
"Peradectes cf. minutus" is omitted by Storer 1996 and may be included in any of the four marsupials in this fauna

"? Ankylodon sp." is omitted by Storer 1995b, 1996 and may be either Talpavus or Sespedectes

"cf. Campylocynodon sp."; not mentioned by Bryant 1992 or Storer 1996, and a junior synonym of Parictis

"cf. Mustelavus sp." is omitted by Storer 1996
Mammalia
 Cimolesta - Pantolestidae
Pantolestidae indet.9 Cope 1884 eutherian
said to be new
 Leptictida - Leptictidae
Leptictidae indet.1 Gill 1872 eutherian
Palaeictops borealis Russell 1965 eutherian
 Primates - Microsyopidae
Uintasorex sp.9 Matthew 1909 primate
 Primates - Omomyidae
Trogolemur sp. Matthew 1909 tarsier
includes "Phenacolemur leonardi" of Storer 1990 and "P. sp." of Storer 1987 according to Beard et al. 1992, who apparently believe "P. leonardi" is a junior synonym; from 72J04-0006 and 72G13-0006
Omomys sp.7 Leidy 1869 tarsier
Macrotarsius cf. montanus7 Clark 1941 tarsier
 Tribosphenida - Plagiomenidae
Thylacaelurus campester Storer 1984 placental
 Rodentia - Cricetidae
Eumys sp. Leidy 1856 mouse
 Rodentia - Pipestoneomyidae
Argorheomys septentrionalis n. gen. n. sp.4 Korth and Emry 2013 rodent
Pipestoneomys sp.3 Donohoe 1956 rodent
 Rodentia - Aplodontidae
Prosciurinae indet. Wilson 1949 mountain beaver
two forms
 Rodentia - Eomyidae
Adjidaumo craigi Storer 1987 rodent
Protadjidaumo pauli Storer 1987 rodent
Metanoiamys lacus1 Storer 1987 rodent
 Rodentia - Heliscomyidae
Heliscomys sp. Cope 1873 rodent
 Rodentia - Eutypomyidae
Eutypomys acares6 Storer 1988 rodent
Eutypomys obliquidens6 Storer 1988 rodent
Microeutypomys tilliei6 Storer 1988 rodent
Janimus dawsonae6 Storer 1988 rodent
 Rodentia - Ischyromyidae
Ischyromyidae indet. Alston 1876 rodent
two forms
"Anonymus baroni" = Churcheria baroni6 Storer 1988 rodent
Pseudotomus timmys6 Storer 1988 rodent
Microparamys nimius6 Storer 1988 rodent
Ischyromys sp. Leidy 1856 rodent
said to be new by Storer 1996
Leptotomus sp. Matthew 1910 rodent
close to Paramys compressidens
Leptotomus cf. guildayi Black 1971 rodent
 Rodentia - Cylindrodontidae
Pseudocylindrodon lateriviae6 Storer 1988 rodent
 Lagomorpha - Leporidae
Tachylagus gawneae8 Storer 1992 rabbit
 Lipotyphla - Geolabididae
Centetodon magnus Clark 1936 placental
Centetodon aztecus Lillegraven et al. 1981 placental
 Perissodactyla - Brontotheriidae
Brontotheriidae indet. Marsh 1873 brontothere
 Perissodactyla - Hyracodontidae
Hyracodon sp. Leidy 1856 odd-toed ungulate
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros
 Perissodactyla - Tapiridae
Colodon sp. Marsh 1890 tapir
 Perissodactyla - Equidae
? Equidae indet. Gray 1821 horse
 Tribosphenida - Nyctitheriidae
Nyctitherium sp.9 Marsh 1872 placental
 Tribosphenida - Soricidae
Soricidae indet. Fischer 1814 shrew
compared to "sp. A" of Storer 1984
 Tribosphenida - Heterosoricidae
Domnina cf. gradata9 Cope 1873 placental
 Tribosphenida - Apternodontidae
Oligoryctes sp. Hough 1956 placental
Apternodus sp. Matthew 1903 placental
 Tribosphenida -
Talpavus conjunctus n. sp.9 Storer 1995 placental
 Chiroptera -
 Chiroptera - Molossidae
Wallia scalopidens9 Storer 1984 free-tailed bat
 Ferae -
Carnivora indet. Bowditch 1821 carnivoran
very small
 Carnivora - Miacidae
Miocyon magnus n. sp.2 Bryant 1992 carnivoran
 Carnivora - Amphicyonidae
Daphoenus cf. lambei2 Russell 1934 bear-dog
 Carnivora - Canidae
Hesperocyon cf. gregarius10 Cope 1873 canid
 Macroscelidea - Amphilemuridae
Sespedectes sp.9 Stock 1935 elephant shrew
 Hyaenodonta -
Didelphodus rheos n. sp.9 Storer 1995 eutherian
 Theriiformes - Peradectidae
Peradectes californicus Stock 1936 metatherian
 Theriiformes - Herpetotheriidae
"Copedelphys cf. innominata" = Herpetotherium innominatum5, Herpetotherium cf. knighti5, "Herpetotherium cf. marsupium" = Peratherium marsupium5
"Copedelphys cf. innominata" = Herpetotherium innominatum5 Simpson 1928 marsupial
Herpetotherium cf. knighti5 McGrew et al. 1959 marsupial
"Herpetotherium cf. marsupium" = Peratherium marsupium5 Troxell 1923 marsupial
 Artiodactyla - Leptochoeridae
Leptochoeridae indet. Marsh 1894 even-toed ungulate
 Artiodactyla - Oromerycidae
Oromerycidae indet. Gazin 1955 even-toed ungulate
"cf. Swift Current form (Storer 1984)"
 Artiodactyla - Agriochoeridae
Protoreodon sp. Scott and Osborn 1887 agriochoerid
Agriochoerus sp.1 Leidy 1850 agriochoerid
 Artiodactyla - Anthracotheriidae
Heptacodon pellionis Storer 1983 anthracothere
from Upper Fauna according to Storer 1993, but it is listed again both in the text and table by Storer 1996, presumably based on new material
 Artiodactyla - Protoceratidae
Leptotragulus sp. Scott and Osborn 1887 protoceratid
said to be "Trigenicus" by Storer 1996
Pseudoprotoceras sp. Cook 1934 protoceratid
 Sarcobora - Apatemyidae
Apatemys sp.9 Marsh 1872 insectivoran
Apatemys hendryi Robinson 1966 insectivoran
? Sinclairella sp. Jepsen 1934 insectivoran
 Multituberculata - Neoplagiaulacidae
Ectypodus lovei Sloan 1966 multituberculate
from 72J04-0006: Storer 1993; additional ? Neoplagiaulacidae indet. also present at this site