Whistler Squat (TMM 41372) (Eocene of the United States)

Also known as Whistler Squat Quarry #2
DUPLICATE REF 3667 or 3852

Where: Brewster County, Texas (29.2° N, 103.2° W: paleocoordinates 31.5° N, 93.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lower Member (Devil's Graveyard Formation), Uintan (46.2 - 40.4 Ma)

Environment/lithology: terrestrial

Reposited in the TMM

Primary reference: J. A. Wilson. 1986. Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Agua Fria-Green Valley Areas. Journal of Vertebrate Paleontology 6(4):350-373 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16651: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• Wax Camp is shown to overlie Whistler Squat s.s. in fig. 1 of Gustafson 1979, but I suspect this is a diagrammatic conceit
"lower 15.2 m" of Fm.: Gustafson 1986b
KA dates of 49.7 +/- 1.2 Ma and 46.9 +/- 1.0 Ma on volcanic tuff directly underlying the site; KA date of 43.9 +/- 0.9 on tuff overlying site; weighted average is 46.1 Ma, but Walton 1992 claims that the 43.9 date is "The most reliable... in the DGF" and the other two dates are incompatible with the AA date of 46.29 Ma for the underlying Alamo Creek Basalt (see Prothero 1996b)
overlies Junction and underlies Purple Bench/Serendipity/Titanothere Hill
the following taxa are from Whistler Squat but exact locality is unknown: Omomys carteri - NOT described by West 1982 Equidae indet. ("Orohippus or Epihippus") "Dichobunidae indet." ? Malaquiferus sp.
Reptilia
 Crocodylia - Planocraniidae
"Pristichampsus cf. vorax" = Boverisuchus vorax2
"Pristichampsus cf. vorax" = Boverisuchus vorax2 Troxell 1925 crocodilian
Mammalia
 Primates - Microsyopidae
Microsyops annectens4 Marsh 1872 primate
 Primates - Omomyidae
Ourayia uintensis3 Osborn 1895 tarsier
TMM 41372-301
 Rodentia - Sciuravidae
Prolapsus sibilatoris n. sp.6 Wood 1973 rodent
Pauromys texensis1 Walton 1993 rodent
 Rodentia - Ischyromyidae
Ischyromyidae indet.3 Alston 1876 rodent
TMM 41372-259, -278, -297, -305; gen. et sp. nov.
Microparamyinae indet.3 Wood 1962 rodent
Microparamys minutus6 Wilson 1937 rodent
Thisbemys corrugatus1 Wood 1959 rodent
 Rodentia - Paramyidae
Paramyidae indet.6 Miller and Gidley 1918 rodent
 Rodentia - Cylindrodontidae
Pareumys boskeyi1 Wood 1973 rodent
 Perissodactyla - Brontotheriidae
Protitanotherium emarginatum3 Hatcher 1895 brontothere
TMM 41372-3, -431, -536
 Perissodactyla - Amynodontidae
Amynodon advenus5 Marsh 1875 odd-toed ungulate
 Perissodactyla - Equidae
Equidae indet.3 Gray 1821 horse
TMM 41372-204
 Carnivora - Miacidae
Miacidae indet.3 Cope 1880 carnivoran
TMM 41372–389
Miocyon cf. scotti1 Wortman and Matthew 1899 carnivoran
 Macroscelidea - Amphilemuridae
Scenopagus cf. edenensis3 McGrew et al. 1959 elephant shrew
TMM 41372-118, -281
Proterixoides sp.3 Stock 1935 elephant shrew
TMM 41372-219, -308; said to be new species
 Ungulata - Hyopsodontidae
Hyopsodus sp.1 Leidy 1870 condylarth
Hyopsodus paulus4 Leidy 1870 condylarth
one specimen, apparently overlooked by Wilson
 Ungulata - Homacodontidae
Hylomeryx sp.1 Peterson 1919 even-toed ungulate
 Ungulata - Protoceratidae
Leptoreodon marshi Wortman 1898 protoceratid
see Wilson 1974: reported as "TMM 40372" initially but this is surely a lapsus for TMM 41372 DUPLICATE REF 3667 or 3852
 Theriiformes - Herpetotheriidae
Herpetotherium sp.3 Cope 1873 marsupial