Little Pocket: Torrejonian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Deltatheriidae indet.
Mammalia
Mammalia indet. Linnaeus 1758
Kues et al. 1977 17 specimens
Huerfanodon torrejonius n. sp. Schoch and Lucas 1981
Schoch and Lucas 1981
and referred specimen from within S & G 9 and "presumably" at "approximately" the same level as KUVP 9 (1 measurement)
Psittacotherium multifragum Cope 1882
Williamson and Lucas 1993
Mammalia - Pantolambdidae
Pantolambda cavirictum Cope 1883
Williamson and Lucas 1993
Mammalia - Condylarthra - Hyopsodontidae
Mioclaenus turgidus Cope 1881
24 specimens
Protoselene opisthacus (Cope 1882)
3 specimens
Ellipsodon grangeri Wilson 1956
Williamson and Lucas 1993
may include "? Mioclaenus sp." said to be new
Promioclaenus acolytus (Cope 1882)
12 specimens
Promioclaenus ? lemuroides (Matthew 1897)
2 specimens
Mammalia - Acreodi - Oxyclaenidae
Coriphagus encinensis (Matthew and Granger 1921)
3 specimens
Deltatherium fundaminis Cope 1881
8 specimens
Mammalia - Acreodi - Triisodontidae
Triisodon quivirensis Cope 1881
Williamson and Lucas 1993
Mammalia - Acreodi - Mesonychidae
Ankalagon saurognathus (Wortman 1897)
Williamson and Lucas 1993
original and current combination Dissacus saurognathus
may include "? Mesonychidae indet." in part
Dissacus navajovius (Cope 1881)
Williamson and Lucas 1993
may include "? Mesonychidae indet." in part
Mammalia - Periptychidae
Periptychus sp. Cope 1881
Periptychus carinidens Cope 1881
includes "P. rhabdodon"
Anisonchus sectorius (Cope 1881)
11 specimens
Haploconus angustus (Cope 1881)
55 specimens
Mammalia - Phenacodontidae
Tetraclaenodon puercensis (Cope 1881)
16 specimens
presumably includes "T. ? pliciferus"
Mammalia - Procreodi - Arctocyonidae
Chriacus baldwini (Cope 1882)
9 specimens
    = Chriacus pelvidens Cope 1881
Williamson and Lucas 1993
Tricentes subtrigonus (Cope 1881)
6 specimens
    = Mimotricentes subtrigonus Cope 1881
Alroy 2002
recombined as Tricentes subtrigonus
Mammalia - Viverravidae
Didymictis haydenianus Cope 1882
3 specimens
    = Protictis haydenianus Cope 1882
Alroy 2002
see also Meehan and Wilson 2002
Mammalia - Pantolestidae
Pentacodon inversus (Cope 1888)
3 specimens
Mammalia - Mixodectidae
Mixodectes cf. malaris (Cope 1884)
6 specimens
    = Mixodectes malaris Cope 1884
Szalay 1969
Mammalia - Primates - Palaechthonidae
Anasazia williamsoni Van Valen 1994
Van Valen 1994
NMMNH 1112, upper Kimbetoh Arroyo; not the type, which is from an unknown locality within Kutz Canyon
Plesiolestes wilsoni (Gazin 1968)
    = Torrejonia ? wilsoni Gazin 1968
Williamson and Lucas 1993
Mammalia - Multituberculata - Eucosmodontidae
Eucosmodon sp. Matthew and Granger 1921
4 specimens
    = Eucosmodontidae indet. Jepsen 1940
Alroy 2002
see figure in Wilson 1956c
Mammalia - Multituberculata - Neoplagiaulacidae
Parectypodus clemensi Sloan 1981
Sloan 1981
recombined as Krauseia clemensi
(1 measurement)
Mimetodon krausei n. sp. Sloan 1981
Sloan 1981
(3 measurements)
Ectypodus macrotomeus n. sp. Wilson 1956
1 specimen
    = Neoplagiaulax macrotomeus Wilson 1956
Alroy 2002
Mammalia - Multituberculata - Ptilodontidae
Ptilodontidae indet. Cope 1887
1 specimen
Reptilia
Reptilia indet. Laurenti 1768
Kues et al. 1977 1 specimen
Reptilia - Anguidae
Glyptosaurinae indet. Marsh 1872
Sullivan and Lucas 1986
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)
Reptilia - Crocodylia
Crocodylus sp. Laurenti 1768
Kues et al. 1977 4 specimens
    = Crocodylia indet. Owen 1842
Alroy 2006
includes "? crocodilian scute" of Sullivan and Lucas 1986 associated with glyptosaurine
Reptilia
Navajosuchus novomexicanus n. gen., n. sp. Mook 1942
Mook 1942
synonym of Navajosuchus mooki
1913 Sinclair and Olsen AMNH collection from "Head of West Fork of Kimbetoh Wash" = Sinclair and Granger Loc. 9 (1 measurement)
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825
Sullivan and Lucas 1986
"gar scales" associated with glyptosaurine
see common names

Geography
Country:United States State/province:New Mexico County:San Juan
Coordinates: 36.3° North, 107.8° West (view map)
Paleocoordinates:42.8° North, 87.8° West
Basis of coordinate:estimated from map
Altitude:2115 meters
Time
Period:Paleogene Epoch:Paleocene
10 m.y. bin:Cenozoic 1
*Period:Tertiary
Key time interval:Torrejonian
Age range of interval:63.80000 - 60.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Nacimiento Member:Deltatherium Zone
Local section:Kimbe Local bed:4
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:91 specimens
Reason for describing collection:general faunal/floral analysis
Museum repositories:LACM
Taxonomic list comments: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
Metadata
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
Database number:14873
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:J. Alroy Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2007-11-10 13:35:32
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

3657. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
18120 J. Alroy. 2006. Synonymies and reidentifications of North American fossil vertebrates. [J. Alroy/J. Alroy/J. Alroy]
15088ETE B. S. Kues, J. W. Froehlich, J. A. Schiebout and S. G. Lucas. 1977. Paleontological survey, resource assessment, and mitigation plan for the Bisti-Star Lake Area, northwestern New Mexico. Report to the Bureau of Land Management, Albuquerque, New Mexico [M. Carrano/K. Maguire/M. Uhen]
23756ETE C. C. Mook. 1942. A new fossil crocodilian from the Paleocene of New Mexico. American Museum Novitates 1189:1-4 [M. Carrano/M. Carrano/J. Alroy]
3057 R. M. Schoch and S. G. Lucas. 1981. New Conoryctines (Mammalia: Taeniodonta) from the Middle Paleocene (Torrejonian) of Western North America. Journal of Mammalogy 62(4) [J. Alroy/J. Alroy/J. Ju]
3195 R. E. Sloan. 1981. Systematics of Paleocene multituberculates from the San Juan Basin, NewMexico. In S. G. Lucas, J. K. Rigby Jr., B. S. Kues (eds.), Advances in San Juan Basin Paleontology 127-160 [J. Alroy/J. Alroy/M. Uhen]
727 R. M. Sullivan and S. G. Lucas. 1986. Annotated list of lower vertebrates from the Paleocene Nacimiento Formation (Puercan-Torrejonian), San Juan Basin, New Mexico. Journal of Herpetology 20(2):202-209 [J. Alroy/M. Sommers/J. Alroy]
3348 F. S. Szalay. 1969. Mixodectidae, Microsyopidae, and the insectivore-primate transition. Bulletin of the American Museum of Natural History 140(4):193-330 [J. Alroy/J. Alroy/J. Alroy]
3488 L. M. Van Valen. 1994. The origin of the plesiadapid primates and the nature of Purgatorius. Evolutionary Monographs 15:1-79 [J. Alroy/J. Alroy/P. Mannion]
3649 T. E. Williamson and S. G. Lucas. 1993. Paleocene vertebrate paleontology of the San Juan Basin, New Mexico. New Mexico Museum of Natural History Bulletin 2:105-136 [J. Alroy/J. Alroy/M. Uhen]