South-southwest of Franklin: Barstovian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Pylodictis olivaris
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Mammalia
- Perissodactyla
- Equidae
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Calippus sp.
(Matthew and Stirton 1930)
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| original and current combination Protohippus (Calippus) | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Rhinocerotidae indet.
Gray 1821
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Mammalia
- Antilocapridae
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Merycodus sp.
Leidy 1854
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= Merycodontinae indet.
Matthew 1904
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Alroy 2002 | |||||||||
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Mammalia
- Leptomerycidae
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Pseudoparablastomeryx sp.
Frick 1937
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Mammalia
- Camelidae
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Camelidae indet.
Gray 1821
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| two forms | ||||||||||
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Mammalia
- Carnivora
- Amphicyonidae
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Amphicyonidae indet.
Haeckel 1886
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Mammalia
- Carnivora
- Canidae
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Aelurodon sp.
Leidy 1858
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= Borophaginae indet.
Simpson 1945
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Alroy 2002 | |||||||||
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Carpocyon sp.
Webb 1969
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Mammalia
- Talpidae
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Talpidae indet.
(Fischer de Waldheim 1817)
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Domninoides sp.
Green 1956
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Mammalia
- Soricidae
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Soricidae indet.
Fischer 1814
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Mammalia
- Erinaceidae
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Erinaceidae indet.
Fischer von Waldheim 1817
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Mammalia
- Lagomorpha
- Leporidae
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Hypolagus sp.
Dice 1917
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Mammalia
- Rodentia
- Heteromyidae
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Cupidinimus sp.
Wood 1935
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Mammalia
- Rodentia
- Castoridae
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Castoridae indet.
Gray 1821
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Mammalia
- Rodentia
- Cricetidae
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Copemys sp.
Wood 1936
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Reptilia
- Scincidae
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Eumeces sp.
Wiegmann 1834
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Reptilia
- Colubridae
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Thamnophis sp.
Fitzinger 1843
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Paleoheterodon tiheni
Holman 1964
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Salvadora paleolineata
Holman 1973
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Nerodia sp.
Baird and Girard 1853
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Reptilia
- Boidae
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Pterygoboa miocenica
Holman 1976
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Reptilia
- Teiidae
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Cnemidophorus sp.
Wagler 1830
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Reptilia
- Testudines
- Trionychidae
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Trionyx sp.
Geoffroy Saint-Hilaire 1809
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= Trionychidae indet.
Gray 1825
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Alroy 2006 | |||||||||
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Reptilia
- Testudines
- Testudinidae
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Geochelone sp.
Fitzinger 1835
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Amphibia
- Temnospondyli
- Ranidae
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Rana sp.
Linnaeus 1758
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Amphibia
- Temnospondyli
- Urodela
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Ambystoma minshalli
Tihen and Chantell 1963
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Actinopteri
- Amiiformes
- Amiidae
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Amia sp.
Linnaeus 1766
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus sp.
Agassiz 1843
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Actinopteri
- Siluriformes
- Ictaluridae
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Ictaluridae indet.
Gill 1861
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Actinopteri
- Sciaenidae
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Aplodinotus sp.
Rafinesque 1818
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Franklin |
| Coordinates: | 40.1° North, 99.0° West (view map) | ||||
| Paleocoordinates: | 41.1° North, 95.7° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| *Period: | Late/Upper Tertiary | *Epoch: | Late/Upper Miocene | *Local age/stage: | Barstovian |
| Key time interval: | Barstovian | ||
| Age range of interval: | 16.30000 - 12.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Ogallala | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: from 6.5 m of section in a single unit | |||||
Lithology and environment
| Primary lithology: | "cross stratification",pebbly,brown,green unlithified argillaceous sandstone |
| Lithology description: "Green and brown clay pebbles" within "unconsolidated, structureless and planar cross-stratified sands" | |
| Environment: | "channel" |
| Geology comments: "broad fluvial channels incised through slightly older opaline sandstones... large, sandy, low-sinuosity stream with multiple channels and gravel bars" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Articulated whole bodies: | none |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | many |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: "fossils were wet-screened" | |
Metadata
| Database number: | 27481 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 2002-12-06 13:57:32 | Last modified: | 2007-09-08 15:25:29 |
| Access level: | the public | Released: | 2002-12-06 13:57:32 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 733. | R. M. Joeckel. 1988. A new late Miocene herpetofauna from Franklin County, Nebraska. Copeia 1988(3):787-789 [J. Alroy/M. Sommers/J. Alroy] |
Secondary references:
| 18120 | J. Alroy. 2006. Synonymies and reidentifications of North American fossil vertebrates. [J. Alroy/J. Alroy/J. Alroy] |