Love's Locality L-41 (Eocene of the United States)

Also known as Blackrock Meadows

Where: Teton County, Wyoming (43.9° N, 110.8° W: paleocoordinates 47.9° N, 96.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Aycross Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: M. C. McKenna. 1972. Vertebrate paleontology of the Togwotee Pass area, northwestern Wyoming. In R. M. West (ed.), Field Conference on Tertiary Biostratigraphy of Southern and Western Wyoming, August 5-10, 1972 80-101 [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16280: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• said by Krishtalka et al. to correlate with the "Upper volcaniclastic unit" of MacGinitie et al. 1974 that includes the White Pass Bentonite, dated at 49.3 (= 50.6) Ma (KA on biotite); although this unit is clearly the "upper Aycross" sensu McKenna 1980, it is about 20 mi W of the type section and a similar distance ESE of L-41
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Reptilia
 Loricata -
Crocodylia indet.
Crocodylia indet. crocodilian
Mammalia
 Didelphimorphia - Didelphidae
Didelphidae indet.2
Didelphidae indet.2 opossum
"cf. Peratherium or Herpetotherium sp."
 Theriamorpha - Herpetotheriidae
Peratherium sp.
Peratherium sp. Aymard 1850 marsupial
 Condylarthra - Hyopsodontidae
Hyopsodus sp.
Hyopsodus sp. Leidy 1870 condylarth
 Rodentia - Paramyidae
Paramyidae indet.1
Paramyidae indet.1 Miller and Gidley 1918 rodent
 Rodentia - Reithroparamyidae
cf. Reithroparamys sp.2
cf. Reithroparamys sp.2 Matthew 1920 rodent
 Rodentia - Sciuravidae
Sciuravus sp.2
Sciuravus sp.2 Marsh 1871 rodent
 Primates - Notharctidae
Notharctus sp.1
Notharctus sp.1 Leidy 1870 primate
 Primates - Microsyopidae
Microsyops cf. angustidens1, Microsyops cf. elegans
Microsyops cf. angustidens1 Matthew 1915 primate
Microsyops cf. elegans Marsh 1871 primate
 Primates - Omomyidae
Omomyidae indet.
Omomyidae indet. Gazin 1958 tarsier
"omomyine or anaptomorphine"
 Placentalia -
? Carnivora indet.
? Carnivora indet. Bowdich 1821 carnivoran
 Perissodactyla - Equidae
Equidae indet.1
Equidae indet.1 Gray 1821 horse
 Theriamorpha - Erinaceidae
Erinaceidae indet.
Erinaceidae indet. Fischer von Waldheim 1817 hedgehog
1Alroy 2002; 2McKenna 1980