Lemoyne Quarry
Basic information
Sample name: Lemoyne Quarry

Sample aka: UNSM Kh-101; UW V-69015

Reference: M. B. Leite. 1990. Stratigraphy and mammalian paleontology of the Ash Hollow Formation (Upper Miocene) on the north shore of Lake McConaughy, Keith County, Nebraska. University of Wyoming Contributions to Geology 28(1):1-29 [ER 4181]
Geography
Country: United States

State: Nebraska

County: Keith

Coordinate: 41.29° N, -101.89° W
Latlng basis: estimated from map

Scale: quarry

Formation: Ash Hollow

Time interval: Late Miocene

Zone: Clarendonian

Section: Lake McConaughy

Unit number: 2

Unit order: below to above

Ma: 9.5

Age basis: AEO

Geography comments: shown in Fig. 2 as near the center of the southern edge of Sec. 3, T. 15 N., R. 40 W.
said to be "very late early Hemphillian"

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Environment
Lithology: claystone

Taphonomic context: lake deposit

Habitat comments: "Diatomaceous claystone... comprises the fossiliferous interval": it is homogeneous due to "extensive bioturbation" and represents "a lacustrine environment"
there is "abundant evidence of damage from carnivores" such as punctures and "grooving and scalloping of the edges by gnawing"
there were "only two examples of articulation" presumed to be due to "feeding activity of carnivores"

Methods
Life forms: carnivores, ungulates, other large mammals

Excluded forms: rodents, other small mammals, birds, fishes

Sampling methods: quarry, screenwash

Sample size: 113 specimens

Years: 1968 - 1972

Museum: University of Nebraska State Museum; University of Wyoming

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "discovered by K. A. Richey... in 1968 during construction of Nebraska State Highway 92" and there was "Intensive investigation by UNSM personnel during the 1969 and 1970 field seasons... Field parties from the University of Wyoming collected at Lemoyne Quarry during 1971 and 1972" but only one UW specimen is listed
there was "efficient hand-quarrying" and also "screening in the 1985 field season"
only the large mammals are inventoried: a single rodent was described by Martin (1975) and the insectivores by Bown (1980), and "fishes, amphibians, reptiles, and birds" are also present

Metadata
Sample no: 4644

Contributor no: John Alroy

Enterer: John Alroy

Created: 2025-01-07 10:38:34

Modified: 2025-01-07 10:38:34

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
20 species
3 singletons
total count 113
geometric series index: 30.9
Fisher's α: 7.057
geometric series k: 0.8479
Hurlbert's PIE: 0.9064
Shannon's H: 2.6564
Good's u: 0.9738
Register
Megalonyx sp. 1
Epicyon validus = †Epicyon cf. haydeni (bone-crushing dog)3
see also Wang et al. (1999)
Borophagus sp. 3
"cf. Osteoborus sp."
†Vulpes cf. stenognathus (fox)11
Mustela sp. 4
cf.: "sensu lato"
Nimravides sp. 2
cf.
Gomphotheriidae indet.1
†Aphelops cf. mutilus (rhinoceros)1
†Teleoceras cf. hicksi (rhinoceros)14
"Teleoceras cf. fossiger": compared closely to "Teleoceras schultzi" from Cambridge, which is Teleoceras hicksi according to Prothero (pers. commun.)
†Neohipparion eurystyle (horse)23
Nannippus sp. 2
†Pliohippus nobilis (horse)5
Calippus sp. 7
said to be new
Tayassuinae indet.3
"Prosthennops sp.": compared to Prosthennops graffhami
Hemiauchenia sp. 4
Alforjas sp. 5
†Megatylopus cf. gigas 5
Pseudoceras sp. 6
Pediomeryx (Yumaceras) sp. 3
Texoceros sp. 10
cf.