West Flank Torreon Wash (Pantolambda Zone) (Paleocene of the United States)

Also known as Sinclair and Granger Loc. 10 (in part); Torreon Wash Pantolambda Zone (in part); UCMP 87141, 87142; BUNM-77-184, -77-199a; NMMNH L-01287

Where: Sandoval County, New Mexico (35.7° N, 107.0° W: paleocoordinates 42.1° N, 87.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14893: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Chris Bell

Creative Commons license: CC BY (attribution)

Taxonomic list

• identical to list 26 of Williamson 1996
presumably includes BUNM-77-183 of Tsentas 1981
clearly includes list of Tsentas 1981, despite lack of explicit discussion; includes all Pantolambda Zone taxa mentioned by Lindsay et al. 1978, 1981
two BUNM sites are the same
although Williamson 1996 reports specimen counts for Tsentas Quarry, these apply only to therians
normal polarity, correlated with 27N on basis of biochronology, but there is no independent tie point
Reptilia
 Squamata - Rhineuridae
Plesiorhineura tsentasi n. sp.2 Sullivan 1985 worm lizard
Holotype "University of New Mexico NP-596, medial part of right ramus"
Mammalia
 Cimolesta - Pantolambdidae
Pantolambda cavirictum Cope 1883 pantodont
Pantolambda bathmodon Cope 1882 pantodont
 Cimolesta - Cimolestidae
Acmeodon secans Matthew and Granger 1921 eutherian
presumably includes type of Matthew and Granger 1921; may include "cf. Gelastops sp." of Tsentas 1981
 Cimolesta - Palaeoryctidae
Palaeoryctes puercensis Matthew 1913 eutherian
 Cimolesta - Pentacodontidae
Pentacodontidae indet. Simpson 1937 eutherian
said to be new
 Leptictida - Leptictidae
Leptictidae indet. Gill 1872 eutherian
said to be new, form "C"
Prodiacodon puercensis Matthew 1918 eutherian
 Primates -
Palaechthon woodi Gazin 1971 primate
described by Wood et al. 1979 and Conroy 1981; includes new specimen of Van Valen 1994 from NMMNH 1091
 Primates - Palaechthonidae
Torrejonia wilsoni1 Gazin 1968 primate
 Condylarthra - Hyopsodontidae
"Promioclaenus lemuroides" = Ellipsodon lemuroides, "Protoselene opisthacus" = Mioclaenus opisthacus, Mioclaenus turgidus, Promioclaenus acolytus
"Promioclaenus lemuroides" = Ellipsodon lemuroides Matthew 1897 condylarth
"Protoselene opisthacus" = Mioclaenus opisthacus Cope 1882 condylarth
Mioclaenus turgidus Cope 1881 condylarth
Promioclaenus acolytus Cope 1882 condylarth
 Condylarthra - Chriacidae
Prothryptacodon ? ambiguus Van Valen 1967 placental
AMNH 16591 - holotype (left mandibular ramus)
 Tribosphenida - Periptychidae
Periptychus carinidens Cope 1881 condylarth
Anisonchus sectorius Cope 1881 condylarth
 Tribosphenida - Phenacodontidae
Tetraclaenodon puercensis Cope 1881 condylarth
 Ferae - Viverravidae
Protictis haydenianus Cope 1882 placental
Intyrictis vanvaleni1 MacIntyre 1966 placental
 Macroscelidea - Apheliscidae
Haplaletes cf. disceptatrix Simpson 1935 elephant shrew
Litomylus dissentaneus Simpson 1935 elephant shrew
 Macroscelidea -
Adunator cf. ladae Simpson 1935 elephant shrew
 Taeniodonta - Conoryctidae
Conoryctes comma Cope 1881 taeniodont
 Taeniodonta - Stylinodontidae
Psittacotherium multifragum Cope 1882 taeniodont
 Tribosphenida - Arctocyonidae
Arctocyon ferox Cope 1883 condylarth
Colpoclaenus procyonoides Matthew 1937 condylarth
"Mimotricentes subtrigonus" = Tricentes subtrigonus Cope 1881 condylarth
Chriacus baldwini Cope 1882 condylarth
also listed by Tsentas 1981
Chriacus pelvidens Cope 1881 condylarth
 Acreodi - Triisodontidae
Goniacodon levisanus Cope 1883 eutherian
 Acreodi - Mesonychidae
Ankalagon saurognathus Wortman 1897 condylarth
includes specimen from NMMNH L-01287 of O'Leary et al. 2000
Dissacus navajovius Cope 1881 condylarth
 Acreodi - Oxyclaenidae
Pentacodon occultus Matthew 1937 eutherian
 Acreodi -
Microclaenodon assurgens Cope 1884 eutherian
 Theriiformes - Peradectidae
? Peradectes sp. Matthew and Granger 1921 metatherian
"B" and "C"
 Sarcobora - Mixodectidae
Mixodectes malaris Cope 1884 insectivoran
Mixodectes pungens Cope 1883 insectivoran
 Multituberculata - Eucosmodontidae
? Eucosmodontidae indet.3 Jepsen 1940 multituberculate
 Multituberculata - Neoplagiaulacidae
? Ectypodus sp.3 Matthew and Granger 1921 multituberculate
 Multituberculata - Ptilodontidae
Ptilodus mediaevus3 Cope 1881 multituberculate