Purple Bench (Eocene of the United States)

Also known as TMM 41672; Midwestern State University Dalquest Research Site

Where: Presidio County, Texas (29.9° N, 104.2° W: paleocoordinates 32.3° N, 94.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16614: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• overlies Whistler Squat and underlies Cotter and Skyline Channels
unclassified
  -
Gastropoda
  - Helminthoglyptidae
Lysinoe breedlovei3 Roth 1984 snail
Reptilia
 Testudines - Carettochelyidae
 Testudines -
Testudinoidea indet.4 Gray 1825 turtle
 Crocodylia -
Crocodylia indet.4 Owen 1842 crocodilian
 Squamata -
Squamata indet.4 squamates
TMM 41672-253, large partial left mandible; vertebrae including TMM 41672-272, TMM 41672- 273, TMM 41672-274, TMM 41672-275, and TMM 41672-276; TMM 41672-259, unpaired frontal; TMM 41672-258, body of a large parietal
 Squamata - Anguidae
Glyptosaurinae indet.4 Marsh 1872 squamates
TMM 41672-256 and TMM 41672-257, two large premaxillae; cranial and postcranial osteoderms, including TMM 41672-269, TMM 41672-270, TMM 41672-271
 Squamata -
Alethinophidia indet.4 snake
Includes vertebrae TMM 41672-265, TMM 41672-266, TMM 41672-267, TMM 41672-268
 Squamata - Rhineuridae
Solastella cookei n. gen. n. sp.4
Solastella cookei n. gen. n. sp.4 Stocker and Kirk 2016 worm lizard
TMM 41672-246 (holotype), partial skull and articulated left mandibular ramus missing anterior portion of the premaxilla, right maxilla, right circumorbital elements, and right side of the occipital condyle; TMM 41672-243, skull with complete mandible; TMM 41672-244, partial skull with partial left mandibular ramus; TMM 41672-245, partial skull with left mandibular ramus; TMM 41672-247, partial skull; TMM 41672-249, partial skull.
Mammalia
 Primates - Omomyidae
Omomys carteri, Diablomomys dalquesti n. gen. n. sp.7, "Mytonius hopsoni" = Ourayia hopsoni7
Omomys carteri Leidy 1869 tarsier
see West 1982
Diablomomys dalquesti n. gen. n. sp.7 Williams and Kirk 2008 tarsier
new specimen
"Mytonius hopsoni" = Ourayia hopsoni7 Robinson 1968 tarsier
new specimen
 Primates -
Mescalerolemur horneri n. gen. n. sp.2
Mescalerolemur horneri n. gen. n. sp.2 Kirk and Williams 2011 primate
new specimens
 Leptictida - Leptictidae
Leptictidae indet.7 Gill 1872 eutherian
 Rodentia - Sciuravidae
Prolapsus sp. Wood 1973 rodent
Pauromys sp.5 Troxell 1923 rodent
"Group 2"
 Rodentia - Ischyromyidae
Microparamys sp. Wood 1959 rodent
Paramys cf. delicatior Leidy 1871 rodent
Thisbemys sp. Wood 1959 rodent
Leptotomus sp. Matthew 1910 rodent
 Rodentia - Cylindrodontidae
Cylindrodontidae indet.1 Miller and Gidley 1918 rodent
 Perissodactyla - Amynodontidae
Amynodon sp.7 Marsh 1877 odd-toed ungulate
 Perissodactyla - Hyracodontidae
Epitriplopus sp.7 Wood 1927 odd-toed ungulate
? Triplopus sp. Cope 1880 odd-toed ungulate
see Wilson and Schiebout 1984
 Perissodactyla - Equidae
Epihippus gracilis1 Marsh 1871 horse
 Carnivora - Miacidae
Miocyon cf. scotti1 Wortman and Matthew 1899 carnivoran
 Macroscelidea - Amphilemuridae
Scenopagus sp.7 McKenna and Simpson 1959 elephant shrew
 Ungulata - Hyopsodontidae
Hyopsodus sp.1 Leidy 1870 condylarth
Hyopsodus paulus6 Leidy 1870 condylarth
omitted accidentally by Wilson (?) but confirmed by Williams and Kirk 2008
 Ungulata - Homacodontidae
Texodon meridianus n. sp. West 1982 even-toed ungulate
see West 1982
 Ungulata - Oromerycidae
? Protylopus sp. Wortman 1898 even-toed ungulate
? Malaquiferus sp. Gazin 1955 even-toed ungulate
omitted by Williams and Kirk 2008
 Ungulata - Agriochoeridae
Protoreodon sp.7 Scott and Osborn 1887 agriochoerid
Protoreodon petersoni Gazin 1955 agriochoerid
Protoreodon pumilus Marsh 1875 agriochoerid
 Ungulata - Protoceratidae
Leptoreodon sp.7 Wortman 1898 protoceratid
Leptoreodon edwardsi Stock 1936 protoceratid
see Wilson 1984: plus "several" isolated teeth
Leptoreodon major Golz 1976 protoceratid
see Wilson 1984
 Acreodi -
Simidectes magnus Peterson 1919 mesonychian
see Gustafson 1979
 Hyaenodonta - Hyaenodontidae
Sinopa major7 Wortman 1902 eutherian
 Theriiformes - Herpetotheriidae
Peratherium sp.7 Aymard 1850 marsupial