Ray's Bonebed (Paleocene of the United States)

Also known as TMM 40535 (Ray's Annex), 40536 (Ray's Bonebed/Needle's Eye), 40537 (Ray's Bone Bed West/Taeniodont Locality), 40148, 40642, 41368, 41367, 41273; T1

Where: Brewster County, Texas (29.5° N, 103.2° W: paleocoordinates 35.3° N, 84.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Black Peaks Formation, Torrejonian (63.3 - 61.7 Ma)

• Torrejonian based on Leslie et al. (2018)

•in a reversed zone interpreted as chron C26r based on the position of the Paleocene-Eocene boundary higher in the section, and on being just below a single Class I site of normal polarity interpreted as C26n

•75 ft above base of formation

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by J. Wilson, M. McKenna, G. Whitaker in 1952, 1962–1963; reposited in the TMM

Collection methods: quarrying, surface (in situ),

Primary reference: J. A. Wilson. 1967. Early Tertiary mammals. In R. A. Maxwell, J. T. Lonsdale, R. T. Hazzard, & J. A. Wilson (eds.), Geology of Big Bend National Park, Brewster County, Texas. The University of Texas Publication 6711:157-169 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14975: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Philip Mannion, Matthew Carrano and K. Christopher Beard

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Crocodylia - Alligatoridae
Bottosaurus fustidens n. sp.3 Cossette 2021 crocodilian
TMM 40148
Mammalia
 Cimolesta - Titanoideidae
Titanoides cf. gidleyi4 Jepsen 1930 pantodont
"may belong" to this species; "T. zeuxis"
 Cimolesta - Pantolambdidae
"Barylambda jackwilsoni" = Caenolambda jepseni5
"Barylambda jackwilsoni" = Caenolambda jepseni5 Simons 1960 pantodont
 Theriamorpha - Stylinodontidae
Psittacotherium multifragum6 Cope 1882 taeniodont
BEG 40537-26, 33, 61; TMM 40148, 40535, 40536
 Condylarthra - Hyopsodontidae
Protoselene opisthacus5 Cope 1882 condylarth
 Theriamorpha - Periptychidae
Periptychus sp.8 Cope 1881 condylarth
TMM 40537; large; see also Williamson 1996
Periptychus carinidens1 Cope 1881 condylarth
BEG 40537-59
 Theriamorpha - Phenacodontidae
Phenacodus grangeri5 Simpson 1935 condylarth
BEG 40148-10, 13; 40642-1
Phenacodus matthewi7 Simpson 1935 condylarth
from TMM 40536
Phenacodus bisonensis7 Gazin 1956 condylarth
or Gidleyina; BEG 40148-4, 6
 Procreodi - Arctocyonidae
Chriacus baldwini1 Cope 1882 condylarth
 Primates - Plesiadapidae
Chiromyoides sp.2 Stehlin 1916 primate
TMM 40537-37; this is the only specimen of "Plesiadapis gidleyi" from Ray's Bonebed
 Primates - Microsyopidae
Navajovius kohlhaasae5 Matthew and Granger 1921 primate