Woodhawk bonebed: Middle Campanian - Late/Upper Campanian, Montana
collected by R. Rogers, Y. Tulu 2002
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Chimaeriformes
- Callorhynchidae
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Ischyodus sp.
Egerton 1843
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Chondrichthyes
- Rajiformes
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Squatirhina sp.
Casier 1947
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Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Ischyrhiza mira
Leidy 1856
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Ischyrhiza avonicola
Estes 1964
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Chondrichthyes
- Rajiformes
- Ptychotrygonidae
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Ptychotrygon hooveri
McNulty and Slaughter 1972
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| recombined as Texatrygon hooveri | ||||||||||
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Ptychotrygon triangularis
(Reuss 1845)
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Chondrichthyes
- Rajiformes
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Protoplatyrhina renae
Case 1978
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Chondrichthyes
- Rajiformes
- Rhinobatidae
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cf. Myledaphus bipartitus
Cope 1876
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Chondrichthyes
- Orectolobiformes
- Orectolobidae
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Cretorectolobus olsoni
Case 1978
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Chondrichthyes
- Lamniformes
- Odontaspididae
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Hypotodus sp.
Jaekel 1895
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| "spp." | ||||||||||
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Hypotodus grandis
Case 1978
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Chondrichthyes
- Lamniformes
- Otodontidae
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Cretolamna appendiculata
(Agassiz 1835)
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| recombined as Cretalamna appendiculata | ||||||||||
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Chondrichthyes
- Lamniformes
- Archaeolamnidae
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Archaeolamna kopingensis
(Davis 1890)
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| "Archaeolamna kopingensis kopingensis" | ||||||||||
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Chondrichthyes
- Lamniformes
- Anacoracidae
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Squalicorax kaupi
(Agassiz 1843)
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cf. Squalicorax kaupi
(Agassiz 1843)
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Chondrichthyes
- Lamniformes
- Pseudoscapanorhynchidae
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Protolamna sokolovi
Cappetta 1980
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Hybodus montanensis
Case 1978
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| recombined as Meristodonoides montanensis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Fergus |
| Coordinates: | 47.7° North, 109.0° West (view map) | ||||
| Paleocoordinates: | 54.7° North, 75.1° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Middle Campanian - Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Montana | Formation: | Judith River | Member: | Woodhawk |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marginal marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
| Preservation of anatomical detail: | good |
| Temporal resolution: | time-averaged |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float),surface (in situ),field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | R. Rogers, Y. Tulu | Collection dates: | 2002 |
Metadata
| Database number: | 177498 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2016-03-30 16:13:36 | Last modified: | 2016-05-18 15:56:48 |
| Access level: | the public | Released: | 2016-03-30 16:13:36 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 58664. | Y. Tulu and R. R. Rogers. 2004. Late Cretaceous chondrichthyans from the Woodhawk bonebed, Judith River Formation (Campanian), Fergus County, Montana. Journal of Vertebrate Paleontology 24(3, suppl.):123A [M. Carrano/M. Carrano] |