Saw Rock Canyon (Lower) ( of the United States)

Also known as Locality No. 6; XI Ranch

Where: Seward County, Kansas (37.1° N, 100.9° W: paleocoordinates 37.2° N, 100.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: XI Member (Rexroad Formation), Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: C. W. Hibbard. 1964. Papers of the Michigan Academy of Science, Arts, and Letters 49 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19922: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Jason Head and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• from a 12 to 14 inch thick layer: Hibbard 1953c

•Nelson and Miller 1990 appear to misattribute an identification of Mimomys mcknighti from Saw Rock Canyon to Repenning 1987

•placed by Repenning 1987 in earliest Blancan

•"Teleoceras sp." Prothero and Manning 1987: record likely "in error" according to Martin et al. 2002

Aves
 Pelecaniformes - Threskiornithidae
cf. Plegadis sp.10 Kaup 1829 ibis
"gen. tentative"
 Charadriiformes - Scolopacidae
Tringa antiqua n. sp.4 Fedducia 1970 snipe
Reptilia
 Testudines - Kinosternoidea
Kinosternon subrubrum5 Bonnaterre 1788 Eastern mud turtle
Kinosternon flavescens5 Agassiz 1857 Yellow mud turtle
 Squamata - Scincidae
 Squamata - Colubridae
Nerodia sp.2 Baird and Girard 1853 water snake
Thamnophis sp.3 Fitzinger 1843 garter snake
Coluber constrictor3 Linnaeus 1758 black racer
Elaphe obsoleta3 Say 1823 black rat snake
 Squamata - Crotalidae
Mammalia
 Carnivora - Mephitidae
Buisnictis cf. schoffi Hibbard 1954 skunk
 Carnivora - Canidae
"Osteoborus progressus n. sp." = Borophagus hilli
"Osteoborus progressus n. sp." = Borophagus hilli Johnston 1939 bone-crushing dog
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
small
 Theriamorpha - Soricidae
Paracryptotis sp.7 Hibbard 1950 red-toothed shrew
 Theriamorpha - Talpidae
"Hesperoscalops sewardensis n. sp." = Scalopus sewardensis
"Hesperoscalops sewardensis n. sp." = Scalopus sewardensis Reed 1962 mole
originally described by Reed 1962
 Rodentia - Sciuridae
Marmotini indet.1, "Marmota sawrockensis n. sp." = Paenemarmota sawrockensis
"Marmota sawrockensis n. sp." = Paenemarmota sawrockensis Hibbard 1964 squirrel
 Rodentia - Castoridae
Dipoides wilsoni n. sp. Hibbard 1949 beaver
see Hibbard 1949
 Rodentia - Heteromyidae
Prodipodomys griggsorum n. sp.12, Perognathus mclaughlini n. sp., "Prodipodomys cf. coquorum" = Perognathus coquorum8
Prodipodomys griggsorum n. sp.12 Zakrzewski 1970 rodent
KU V45781, V24342, V28172, V55163, V57044
Perognathus mclaughlini n. sp. Hibbard 1949 pocket mouse
see Hibbard 1949c
"Prodipodomys cf. coquorum" = Perognathus coquorum8 Wood 1935 pocket mouse
"quite likely" this species
 Rodentia - Geomyidae
Geomys sp.9 Rafinesque 1817 pocket gopher
 Rodentia - Cricetidae
Baiomys sawrockensis n. sp., "Cimmaronomys stirtoni n. sp." = Calomys (Bensonomys) stirtoni, "Peromyscus sawrockensis n. sp." = Symmetrodontomys simplicidens, Neotoma sawrockensis n. sp.6, Onychomys gidleyi1, Ogmodontomys sawrockensis n. sp.
Baiomys sawrockensis n. sp. pygmy mouse
apparently a lapsus calami, as Hibbard 1949c described the specimen as B. rexroadi and none of Hibbard's other publications between 1949 and 1964 discuss this record
"Cimmaronomys stirtoni n. sp." = Calomys (Bensonomys) stirtoni Hibbard 1953 mouse
"Peromyscus sawrockensis n. sp." = Symmetrodontomys simplicidens Hibbard 1941 mouse
Neotoma sawrockensis n. sp.6 Hibbard 1967 pack rat
Onychomys gidleyi1 Hibbard 1941 grasshopper mouse
Ogmodontomys sawrockensis n. sp. Hibbard 1957 mouse
see Hibbard 1957a
 Lagomorpha - Leporidae
Leporidae indet. Fischer de Waldheim 1817 rabbit