Beckerdite: Hemphillian, Kansas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Potamocypris sp.
said to be new
Mammalia - Proboscidea - Gomphotheriidae
Gomphotheriidae indet. Hay 1922
Mammalia - Carnivora - Felidae
Nimravides catacopis
    = Nimravides thinobates Macdonald 1948
Alroy 2002
Mammalia - Carnivora - Canidae
    = Borophagus sp. Cope 1892
Alroy 2002
Epicyon sp. (Leidy 1858)
original and current combination Canis (Epicyon)
Mammalia - Camelidae
Procamelus sp. Leidy 1858
Megatylopus sp. (Matthew and Cook 1909)
original and current combination Pliauchenia (Megatylopus)
Mammalia - Antilocapridae
? Antilocapridae indet. Gray 1866
Mammalia - Perissodactyla - Rhinocerotidae
Teleoceras sp. Hatcher 1894
Aphelops sp. Owen 1845
Mammalia - Perissodactyla - Equidae
Pseudhipparion sp. Ameghino 1904
Mammalia - Rodentia
Rodentia indet. Bowdich 1821
Reptilia - Crocodylia
Crocodylia indet. (Owen 1842)
VP-3191, VP-4721, VP-6586, and VP-6781 (teeth); VP-5790 and VP-12693 (scutes)
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
Reptilia - Testudines - Testudinidae
Geochelone sp. Fitzinger 1835
Reptilia - Testudines
Chelonia indet. (Latreille 1800)
synonym of Testudines
Amphibia - Temnospondyli
Anura indet. (Fischer von Waldheim 1813)
Amphibia - Temnospondyli - Urodela
Urodela indet. (Duméril 1805)
Gastropoda - Heterostropha - Helicodiscidae
cf. Helicodiscus parallelus
Gastropoda - Heterostropha - Zonitidae
cf. Hawaiia minuscula
Ostracoda - Podocopida - Candonidae
Candona cf. lactea
Angiospermae - Rosales - Ulmaceae
Celtis sp. Linnaeus 1753
Angiospermae - Boraginales - Boraginaceae
Biorbia fossilia
Angiospermae - Poales - Poaceae
Berriochloa minuta
Berriochloa amphoralis
Charales - Characea
Chara cf. globularis
see common names

Geography
Country:United States State/province:Kansas County:Clark
Coordinates: 37.2° North, 99.9° West (view map)
Paleocoordinates:37.5° North, 98.2° West
Basis of coordinate:based on political unit
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
*Period:Tertiary *Epoch:Miocene
*Local age/stage:Early/Lower Hemphillian
Key time interval:Hemphillian
Age range of interval:9.40000 - 4.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Ogallala
Stratigraphy comments: said to be early Hemphillian
Lithology and environment
Primary lithology: silty sandstone
Lithology description: "poorly sorted, medium-grained, silty sand"
Environment:fluvial indet.
Geology comments: "slow moving river"
Taphonomy
Modes of preservation:body
Fragmentation:frequent
Feeding/predation traces:tooth marks
Spatial resolution:allochthonous
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Collection method comments: specimens reposited in the Sternberg Museum of Natural History
Metadata
Database number:18046
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1994-04-30 00:00:00 Last modified:2007-11-08 22:01:22
Access level:the public Released:1994-04-30 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
2228. G. A. Liggett. 1997. The Beckerdite local biota (early Hemphillian) and the first Tertiary occurrence of a crocodilian from Kansas. Transactions of the Kansas Academy of Sciences 100(3-4):101-108 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]