Morava Ranch Quarry ( of the United States)

Where: Box Butte County, Nebraska (42.2° N, 103.1° W: paleocoordinates 43.0° N, 98.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Harrisonian (24.8 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: M. C. Coombs. 1984. National Geographic Society Research Reports 16 [J. Alroy/J. Alroy]more details

PaleoDB collection 17805: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Anna Behrensmeyer and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• not clear from local stratigraphy if this is in the Upper Harrison or Harrison, contra Yatkola 1978, who believed it to be in the Harrison sensu stricto
NISP 693 according to Coombs 1984, but only 568 are generically or specifically identifiable according to Coombs and Coombs 1997
Aves
 Anseriformes - Anatidae
Anatidae indet.1 Vigors 1825 waterfowl
ETE occurrence; species: Anatidae
Mammalia
 Rodentia - Castoridae
cf. Palaeocastor sp. Leidy 1869 beaver
 Artiodactyla - Merycoidodontidae
"Phenacocoelus stouti" = Merycoides stouti
"Phenacocoelus stouti" = Merycoides stouti Schultz and Falkenbach 1950 oreodont
 Artiodactyla - Moschidae
"Blastomeryx olcotti" = Problastomeryx primus
"Blastomeryx olcotti" = Problastomeryx primus Matthew 1908 musk deer
 Artiodactyla - Hypertragulidae
cf. Nanotragulus sp.2 Lull 1922 ruminant
 Artiodactyla - Entelodontidae
Dinohyus hollandi Peterson 1905 even-toed ungulate
 Artiodactyla - Camelidae
cf. Michenia sp. Frick and Taylor 1971 camel
Stenomylus sp. Peterson 1907 camel
 Perissodactyla - Equidae
cf. Kalobatippus agatensis Osborn 1918 anchitheriine horse
Parahippus atavus2 Osborn 1918 anchitheriine horse
 Perissodactyla - Rhinocerotidae
Menoceras arikarense Barbour 1906 rhinoceros
Menoceras barbouri5 Wood 1964 rhinoceros
"0.25 miles west of Stenomylus Quarry, Morava Ranch"
Diceratherium annectens4 Marsh 1873 rhinoceros
pers. comm.: "D. cf. niobrarense"
Diceratherium niobrarense5 Peterson 1906 rhinoceros
 Perissodactyla - Chalicotheriidae
Moropus elatus Marsh 1877 chalicothere
may include type from "18 mi east of Agate": see discussion in Coombs 1978b
 Carnivora - Amphicyonidae
Ysengrinia americana3 Wortman 1901 bear-dog
cf. Daphoenodon sp. Peterson 1909 bear-dog
Cynelos sp. Jourdan 1862 bear-dog
 Carnivora - Canidae
Desmocyon thomsoni6 Matthew 1907 bone-crushing dog
"Morava Ranch"
Phlaocyon sp. Matthew 1899 bone-crushing dog
not discussed by Wang et al. 1999