Little Pocket (Paleocene of the United States)

Also known as KUVP Locality 9, KU-9; Head of the West Branch of Kimbetoh Arroyo; LACM 4021; Sinclair and Granger Loc. 9; UALP 7595, 75100, 75101, 7576; UCMP 78081

Where: San Juan County, New Mexico (36.3° N, 107.8° W: paleocoordinates 42.8° N, 87.8° W)

• coordinate estimated from map

When: Deltatherium Zone Member (Nacimiento Formation), Torrejonian (63.3 - 61.7 Ma)

Environment/lithology: terrestrial

Reposited in the LACM

Primary reference: J. A. Wilson. 1956. Miocene Formations and Vertebrate Biostratigraphic Units, Texas Coastal Plain. Bulletin of the American Association of Petroleum Geologists 40(9) [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14873: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• records of Williamson and Lucas 1993 could include some material from Betonnie-Tsosie Arroyo
identical to list 13 of Williamson 1996
entire section is of reversed polarity according to Taylor 1981
type of Ellipsodon "yotankae" appears to be from Sinclair and Granger Locality 8; see Van Valen 1978
partial list of Taylor 1981 is repeated from Wilson almost without modification but includes Triisodon; this might be a lapsus as the KUVP 13 record of Triisodon appears in an adjacent column of Wilson's table
paleomag correlation is based on entirely reversed polarity of local section, but there is no tie point and the correlation is completely ambiguous
unclassified
  -
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.7 Cuvier 1825 gar
"gar scales" associated with glyptosaurine
Reptilia
  -
Reptilia indet.3 Laurenti 1768 reptile
 Loricata -
Crocodylia indet.2 crocodilian
 Crocodylia - Alligatoridae
"Navajosuchus novomexicanus n. gen. n. sp." = Navajosuchus mooki4
"Navajosuchus novomexicanus n. gen. n. sp." = Navajosuchus mooki4 Simpson 1930 crocodilian
1913 Sinclair and Olsen AMNH collection from "Head of West Fork of Kimbetoh Wash" = Sinclair and Granger Loc. 9
 Squamata - Anguidae
Glyptosaurinae indet.7 Marsh 1872 squamates
AMNH specimen from "head of Kimbeto Wash (lower level) 'Deltatherium zone'" = Sinclair and Granger Locality 8: Peltosaurus of Gilmore 1928. "AMNH specimen" is probably AMNH 5187, left and right dentary fragments, fragment of right maxilla, other bone fragments (from ref 60385)
Mammalia
  -
Mammalia indet.3 Linnaeus 1758 mammal
 Primates - Palaechthonidae
Anasazia williamsoni9 Van Valen 1994 primate
NMMNH 1112, upper Kimbetoh Arroyo; not the type, which is from an unknown locality within Kutz Canyon
Torrejonia ? wilsoni10 Gazin 1968 primate
 Cimolesta - Pantolambdidae
Pantolambda cavirictum10 Cope 1883 pantodont
 Cimolesta - Pentacodontidae
Coriphagus encinensis Matthew and Granger 1921 eutherian
 Ferae - Viverravidae
Protictis haydenianus1 Cope 1882 placental
 Taeniodonta - Conoryctidae
Huerfanodon torrejonius n. sp.5 Schoch and Lucas 1981 taeniodont
and referred specimen from within S & G 9 and "presumably" at "approximately" the same level as KUVP 9
 Taeniodonta - Stylinodontidae
Psittacotherium multifragum10 Cope 1882 taeniodont
 Tribosphenida - Arctocyonidae
"Mimotricentes subtrigonus" = Tricentes subtrigonus1, Chriacus pelvidens10
"Mimotricentes subtrigonus" = Tricentes subtrigonus1 Cope 1881 condylarth
Chriacus pelvidens10 Cope 1881 condylarth
 Ungulata - Hyopsodontidae
Ellipsodon grangeri10, "Promioclaenus ? lemuroides" = Ellipsodon lemuroides, "Protoselene opisthacus" = Mioclaenus opisthacus, Mioclaenus turgidus, Promioclaenus acolytus
Ellipsodon grangeri10 Wilson 1956 condylarth
may include "? Mioclaenus sp." said to be new
"Promioclaenus ? lemuroides" = Ellipsodon lemuroides Matthew 1897 condylarth
"Protoselene opisthacus" = Mioclaenus opisthacus Cope 1882 condylarth
Mioclaenus turgidus Cope 1881 condylarth
Promioclaenus acolytus Cope 1882 condylarth
 Ungulata - Periptychidae
Periptychus sp. Cope 1881 condylarth
Periptychus carinidens Cope 1881 condylarth
includes "P. rhabdodon"
Haploconus angustus Cope 1881 condylarth
Anisonchus sectorius Cope 1881 condylarth
 Ungulata - Phenacodontidae
Tetraclaenodon puercensis Cope 1881 condylarth
presumably includes "T. ? pliciferus"
 Insectivora - Mixodectidae
Mixodectes malaris8 Cope 1884 insectivoran
 Acreodi - Triisodontidae
Triisodon quivirensis10 Cope 1881 eutherian
 Acreodi - Mesonychidae
Ankalagon saurognathus10 Wortman 1897 condylarth
may include "? Mesonychidae indet." in part
Dissacus navajovius10 Cope 1881 condylarth
may include "? Mesonychidae indet." in part
 Acreodi - Oxyclaenidae
Pentacodon inversus Cope 1888 eutherian
 Hyaenodonta -
Deltatherium fundaminis Cope 1881 eutherian
 Multituberculata - Eucosmodontidae
Eucosmodontidae indet.1 Jepsen 1940 multituberculate
 Multituberculata - Neoplagiaulacidae
Parectypodus clemensi6 Sloan 1981 multituberculate
Mimetodon krausei n. sp.6 Sloan 1981 multituberculate
Neoplagiaulax macrotomeus1 Wilson 1956 multituberculate
 Multituberculata - Ptilodontidae
Ptilodontidae indet. Cope 1887 multituberculate