Marsland Quarry: Early/Lower Hemingfordian, Nebraska
collected by D. Yatkola 1971

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Temnospondyli - Bufonidae
Bufo sp. Laurenti 1768
Amphibia - Temnospondyli - Ranidae
Rana sp. Linnaeus 1758
Amphibia - Temnospondyli - Hylidae
Hylidae indet. Rafinesque 1815
Amphibia - Temnospondyli - Pelobatidae
Scaphiopus sp. Holbrook 1836
subgenus Scaphiopus
Amphibia - Temnospondyli - Urodela
Ambystoma aff. minshalli Tihen and Chantell 1963
Mammalia - Rodentia - Heteromyidae
Schizodontomys amnicolus Korth et al. 1990
Bailey 2004
Proheteromys sp. Wood 1932
Bailey 2004
Mammalia - Rodentia - Zapodidae
Plesiosminthus clivosus Galbreath 1953
Bailey 2004
recombined as Schaubeumys clivosus
Mammalia - Lagomorpha - Ochotonidae
Oreolagus nebrascensis McGrew 1941
Bailey 2004
Mammalia - Erinaceidae
Parvericius montanus Koerner 1940
Rich 1981
Brachyerix macrotis Matthew 1933
Bailey 2004
Mammalia - Soricidae
Limnoecus compressus (Wilson 1960)
Bailey 2004
Mammalia - Plesiosoricidae
Plesiosorex coloradensis Wilson 1960
Bailey 2004
Mammalia - Proscalopidae
Mesoscalops scopelotemos Reed 1960
Bailey 2004
Mammalia - Perissodactyla - Tapiridae
Miotapirus marslandensis n. sp. Schoch 1984
Schoch 1984
recombined as Nexuotapirus marslandensis
Collected by John Graham Cooke in August 1917, approximately 18 miles (30 km) east of Agate, northwestern Nebraska (that is, near Marsland, Nebraska: see Schultz and Stout 1961, p. 49). S&S'61 p. 49 lists Marsland Quarry only
Mammalia - Carnivora - Amphicyonidae
Amphicyon sp. Lartet 1836
Hunt 1998
    = Amphicyon galushai Hunt 2003
Hunt 2003
Daphoenodon sp. Peterson 1909
Hunt 1998
    = Daphoenodon (Borocyon) robustum Peterson 1910
Hunt 2009
this is the paratype locality
Mammalia - Carnivora - Canidae
Cynarctoides acridens (Barbour and Cook 1914)
Wang et al. 1999
Metatomarctus canavus (Simpson 1932)
Wang et al. 1999
Reptilia - Testudines - Testudinidae
Testudinidae indet. Batsch 1788
Reptilia - Boidae
Boidae indet. Gray 1825
    = Charina prebottae Brattstrom 1958
Holman 1977
Reptilia - Colubridae
Colubrinae indet. Oppel 1811
    = Dakotaophis greeni
Holman 1977
Salvadora paleolineata Holman 1973
Holman 1977
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
forms "A," "B," and "C"
Reptilia - Rhineuridae
Rhineura marslandensis n. sp. Yatkola 1976
Reptilia - Iguanidae
? Holbrookia antiqua n. sp. Yatkola 1976
Sceloporus sp. Wiegmann 1828
Reptilia - Anguidae
? Gerrhonotus sp. Wiegmann 1828
cf. Paragerrhonotus ricardensis Estes 1963
see common names

Geography
Country:United States State/province:Nebraska County:Box Butte
Coordinates: 42.4° North, 103.3° West (view map)
Paleocoordinates:43.1° North, 99.4° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
Stage:Burdigalian 10 m.y. bin:Cenozoic 5
*Period:Late/Upper Tertiary *Epoch:Middle Miocene
*Local age/stage:Hemingfordian
Key time interval:Early/Lower Hemingfordian
Age range of interval:20.43000 - 15.97000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Runningwater
Local section:PineR Local bed:16
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Lithology description: none given by Yatkola
Environment:fluvial indet.
Geology comments: "braided stream sediments" (Yatkola 1976)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some genera
Collection methods:bulk,selective quarrying,sieve,field collection
Reason for describing collection:taxonomic analysis
Collectors:D. Yatkola Collection dates:1971
Collection method comments: Yatkola collection is from "screened matrix"
Taxonomic list comments:said to be in the "Marsland" Formation by some authors
Metadata
Also known as:UNSM Bx-22; UW V-34001
Database number:17963
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:G. Varnham Research group:vertebrate
Collections that are a subset of this one:34754, 170148
Created:2000-05-19 00:00:00 Last modified:2022-05-04 04:59:34
Access level:the public Released:2000-05-19 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

7577. D. A. Yatkola. 1976. Mid-Miocene lizards from western Nebraska. Copeia 1976(4):645-654 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

19303 B. E. Bailey. 2004. Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas. Paludicola 4(3):81-113 [J. Alroy/J. Alroy]
75785% 32060J. A. Holman. 1977. Additional snakes from the Miocene of western Nebraska. Herpetologica 33(4):443-446 [J. Alroy/J. Alroy/J. Alroy]
1977 R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy]
54871 R. M. Hunt, Jr. 2009. Long-Legged Pursuit Carnivorans (Amphicyonidae, Daphoeninae) From the Early Miocene of North America. Bulletin of the American Museum of Natural History 318:1-95 [J. Marcot/J. Marcot]
2897 T. H. V. Rich. 1981. Origin and History of the Erinaceinae and Brachyericinae (Mammalia, Insectivora) in North America. Bulletin of the American Museum of Natural History 171(1):1-116 [J. Alroy/J. Alroy/P. Mannion]
3051 R. M. Schoch. 1984. The Type Specimens of Tapiravus validus and ? Tapiravus rams (Mammalia, Perissodactyla), with a Review of the Genus, and a New Report of Miotapirus {Miotapirus marslandensis Schoch and Prins, new species) from Nebraska. Postilla 195:1-12 [J. Alroy/J. Alroy/J. Marcot]
3558 X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]