USGS 10870, San Geronimo Creek: Late/Upper Maastrichtian, Texas
collected by L.W. Stephenson
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Demospongiae
- Clavulina
- Clionaidae
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Cliona sp.
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Sohl and Koch 1984 | |||||||||
Clione sp. | ||||||||||
Cephalopoda
- Ammonitida
- Sphenodiscidae
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Sphenodiscus pleurisepta
(Conrad 1857)
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Sohl and Koch 1984 | 1 specimen | ||||||||
Sphenodiscus pleurisepta (Conrad) | ||||||||||
Gastropoda
- Turritellidae
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Turritella sp.
Lamarck 1799
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Sohl and Koch 1984 | 1 specimen | ||||||||
Turritella sp. | ||||||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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? Drilluta sp.
Wade 1916
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Sohl and Koch 1984 | 1 specimen | ||||||||
Drilluta ? sp. - originally entered as "Drilluta ? sp." | ||||||||||
Bivalvia
- Pectinida
- Plicatulidae
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Plicatula (Plicatula) mullicaensis
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Sohl and Koch 1984 | 2 specimens | ||||||||
Plicatula (Plicatula) mullicaensis | ||||||||||
Bivalvia
- Pectinida
- Limidae
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Lima (Lima) geronimoensis
Stephenson 1941
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Sohl and Koch 1984 | 1 specimen | ||||||||
Lima (Lima) geronimoensis Stephens | ||||||||||
Bivalvia
- Pectinida
- Neitheidae
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Neithea (Neitheops) sp.
(Stewart 1930)
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Sohl and Koch 1984 | 1 specimen | ||||||||
original and current combination Neitheops | ||||||||||
Neithea (Neitheops) sp. | ||||||||||
Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte vesicularis
(Lamarck 1806)
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Sohl and Koch 1984 | 1 specimen | ||||||||
recombined as Pycnodonta vesicularis | ||||||||||
Pycnodonte vesicularis Lamarck | ||||||||||
Exogyra costata
(Say 1820)
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Sohl and Koch 1984 | 12 specimens | ||||||||
original and current combination Exogyra (Exogyra) costata | ||||||||||
Exogyra costata Say | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostrea mesenterica
Morton 1834
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Sohl and Koch 1984 | 2 specimens | ||||||||
recombined as Lopha mesenterica | ||||||||||
Ostrea mesenterica Morton | ||||||||||
unclassified
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Bryozoa indet.
Ehrenberg 1831
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Sohl and Koch 1984 | |||||||||
Bryozoa (encrusting) | ||||||||||
Polychaeta
- Sabellida
- Serpulidae
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Serpula sp.
Linnaeus 1758
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Sohl and Koch 1984 | |||||||||
Serpula sp. | ||||||||||
Echinoidea
- Spatangoida
- Micrasteridae
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Micraster americanus
(Stephenson 1941)
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Echinoidea
- Spatangoida
- Schizasteridae
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Linthia variabilis
Slocom 1909
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Sohl and Koch 1984 | |||||||||
Linthia variabilis Slocum | ||||||||||
Echinoidea
- Cassiduloida
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Hardouinia dalli
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Sohl and Koch 1984 | |||||||||
corrected as Harduinia | ||||||||||
Hardouinea dalli Clark | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Medina |
Coordinates: | 29.5° North, 98.8° West (view map) | ||||
Paleocoordinates: | 35.2° North, 77.9° West | ||||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
*Period: | Late/Upper Cretaceous | *Epoch: | Late/Upper Senonian |
*International age/stage: | Middle - Late/Upper Maastrichtian | ||
Key time interval: | Late/Upper Maastrichtian | Ammonoid zone: | Discoscaphites conradi |
Age range of interval: | 70.60000 - 66.00000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Corsicana Marl | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: Haustator bilira assemblage zone |
Lithology and environment
Primary lithology: | glauconitic claystone | ||
Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
Modes of preservation: | body,original calcite |
Size of fossils: | mesofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | paleoecologic analysis |
Museum repositories: | USNM |
Collectors: | L.W. Stephenson |
Collection method comments: Stephenson collection |
Metadata
Also known as: | Sohl and Koch OFR # 771 | ||
Database number: | 4520 | ||
Authorizer: | M. Kosnik, W. Kiessling | Enterer: | M. Kosnik, U. Merkel |
Modifier: | M. Clapham | Research group: | GCP,marine invertebrate |
Created: | 1999-08-14 13:00:00 | Last modified: | 2018-11-23 00:59:42 |
Access level: | the public | Released: | 1999-08-14 13:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
26335. | 1% 20600 | C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham] |
Secondary references:
29915 | J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa] | |
282 | N. F. Sohl and C. F. Koch. 1984. Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain. USGS Open File Report 84-687:1-282 [M. Kosnik/M. Kosnik] |