PBDB Collection

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

Show authors, comments, and common names

Aves
Pelecaniformes - Threskiornithidae	cf. Plegadis sp.¹⁰ cf. Plegadis sp.¹⁰ Kaup 1829 ibis "gen. tentative"
Charadriiformes - Scolopacidae	Tringa antiqua n. sp.⁴ Tringa antiqua n. sp.⁴ Fedducia 1970 snipe
Reptilia
Squamata - Colubridae	Elaphe obsoleta³, Coluber constrictor³, Nerodia sp.², Thamnophis sp.³ Elaphe obsoleta³ Say 1823 black rat snake Coluber constrictor³ Linnaeus 1758 black racer Nerodia sp.² Baird and Girard 1853 water snake Thamnophis sp.³ Fitzinger 1843 garter snake
Squamata - Crotalidae	Agkistrodon contortix³ Agkistrodon contortix³ cottonmouth
Squamata - Scincidae	Eumeces striatulus¹¹ Eumeces striatulus¹¹ skink
Testudines - Kinosternoidea	Kinosternon flavescens⁵, Kinosternon subrubrum⁵ Kinosternon flavescens⁵ Agassiz 1857 Yellow mud turtle Kinosternon subrubrum⁵ Bonnaterre 1788 Eastern mud turtle
Mammalia
Carnivora - Mephitidae	Buisnictis cf. schoffi 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., Gigantocamelus cf. spatulus Camelidae indet. Gray 1821 camel small Gigantocamelus cf. spatulus Cope 1893 camel
Theriamorpha - Talpidae	"Hesperoscalops sewardensis n. sp." = Scalopus sewardensis "Hesperoscalops sewardensis n. sp." = Scalopus sewardensis Reed 1962 mole originally described by Reed 1962
Theriamorpha - Soricidae	Paracryptotis sp.⁷ Paracryptotis sp.⁷ Hibbard 1950 red-toothed shrew
Lagomorpha - Leporidae	Leporidae indet. Leporidae indet. Fischer de Waldheim 1817 rabbit
Rodentia - Cricetidae	"Cimmaronomys stirtoni n. sp." = Calomys (Bensonomys) stirtoni, Onychomys gidleyi¹, Neotoma sawrockensis n. sp.⁶, "Peromyscus sawrockensis n. sp." = Symmetrodontomys simplicidens, Ogmodontomys sawrockensis n. sp., Baiomys sawrockensis n. sp. "Cimmaronomys stirtoni n. sp." = Calomys (Bensonomys) stirtoni Hibbard 1953 mouse Onychomys gidleyi¹ Hibbard 1941 grasshopper mouse Neotoma sawrockensis n. sp.⁶ Hibbard 1967 pack rat "Peromyscus sawrockensis n. sp." = Symmetrodontomys simplicidens Hibbard 1941 mouse Ogmodontomys sawrockensis n. sp. Hibbard 1957 mouse see Hibbard 1957a 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
Rodentia - Sciuridae	"Marmota sawrockensis n. sp." = Paenemarmota sawrockensis, Marmotini indet.¹ "Marmota sawrockensis n. sp." = Paenemarmota sawrockensis Hibbard 1964 squirrel Marmotini indet.¹ squirrel
Rodentia - Castoridae	Dipoides wilsoni n. sp. Dipoides wilsoni n. sp. Hibbard 1949 beaver see Hibbard 1949
Rodentia - Geomyidae	Geomys sp.⁹ Geomys sp.⁹ Rafinesque 1817 pocket gopher
Rodentia - Heteromyidae	"Prodipodomys cf. coquorum" = Perognathus coquorum⁸, Perognathus mclaughlini n. sp., Prodipodomys griggsorum n. sp.¹² "Prodipodomys cf. coquorum" = Perognathus coquorum⁸ Wood 1935 pocket mouse "quite likely" this species Perognathus mclaughlini n. sp. Hibbard 1949 pocket mouse see Hibbard 1949c Prodipodomys griggsorum n. sp.¹² Zakrzewski 1970 rodent KU V45781, V24342, V28172, V55163, V57044

¹Alroy 2002; ²Alroy 2009; ³Brattstrom 1967; ⁴Fedducia 1970; ⁵Fichter 1969; ⁶Hibbard 1967; ⁷Hibbard and Bjork 1971; ⁸Korth 1995; ⁹Martin et al. 2002; ¹⁰Moseley and Feduccia 1975; ¹¹Twente 1952; ¹²Zakrzewski 1970