Escavada Wash (Upper) (Paleocene of the United States)

Also known as NMMNH 312, 2708; Sinclair and Granger Loc. 14 (in part)

Where: Sandoval County, New Mexico (36.2° N, 107.6° W: paleocoordinates 42.7° N, 87.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ojo Encino Member (Nacimiento Formation), Torrejonian (63.8 - 60.9 Ma)

• "late Torrejonian... Mixodectes pungens interval zone" (Rose and Lucas 2000)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. Froehlich, M. London in 1979; reposited in the NMMNH

Collection methods: bulk, surface (float), sieve,

• "the [palaeanodont] bones were collected from the surface... and from screen-washed sediment"

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: general faunal/floral analysis

PaleoDB collection 14835: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• identical to list 22 of Williamson 1996

•excludes multis

•"Acmeodon secans" Matthew and Granger 1921, from the Pantolambda Zone, may or may not be at this level; record not discussed by Williamson and Lucas 1993

•"Caenolambda sp." may be present based on one very poor specimen from "the upper Torrejonian formation of the Escavada Wash": Simons 1960

Mammalia
 Theriamorpha - Conoryctidae
Conoryctes comma Cope 1881 taeniodont
probably includes conoryctid "A" of Schoch 1986
 Theriamorpha - Stylinodontidae
Psittacotherium multifragum Cope 1882 taeniodont
 Cimolesta - Pantolambdidae
Pantolambda bathmodon Cope 1882 pantodont
Pantolambda cavirictum Cope 1883 pantodont
 Condylarthra - Hyopsodontidae
Mioclaenus turgidus Cope 1881 condylarth
Protoselene opisthacus Cope 1882 condylarth
Promioclaenus acolytus Cope 1882 condylarth
Promioclaenus lemuroides Matthew 1897 condylarth
 Acreodi - Mesonychidae
Dissacus navajovius Cope 1881 condylarth
 Theriamorpha - Periptychidae
Periptychus carinidens Cope 1881 condylarth
Anisonchus sectorius Cope 1881 condylarth
 Theriamorpha - Phenacodontidae
Tetraclaenodon puercensis Cope 1881 condylarth
 Procreodi - Arctocyonidae
Colpoclaenus procyonoides Matthew 1937 condylarth
Arctocyon ferox Cope 1883 condylarth
"Mimotricentes subtrigonus" = Tricentes subtrigonus Cope 1881 condylarth
 Theriamorpha - Viverravidae
Protictis haydenianus Cope 1882 placental
 Theriamorpha - Escavadodontidae
Escavadodon zygus n. sp. Rose and Lucas 2000 placental
NMMNH 2708; also at NMMNH 312; "Leptictidae indet. C"
 Theriamorpha - Mixodectidae
Mixodectes pungens Cope 1883 placental