P-8 (Brazos River K-T boundary, TX): Danian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Litiopidae
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Litiopa sp.
Rang 1829
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2 specimens | |||||||||
L. sp. a | ||||||||||
Gastropoda
- Neogastropoda
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Neogastropoda indet.
Thiele 1929
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1 specimen | |||||||||
N. c | ||||||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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Anomalofusus sp.
Wade 1916
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1 specimen | |||||||||
A. substriata or subnodosus | ||||||||||
Gastropoda
- Neogastropoda
- Turridae
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Amuletum curvocostatum
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1 specimen | |||||||||
Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
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1 specimen | |||||||||
Gastropoda
- Procerithiidae
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Nudivagus sp.
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1 specimen | |||||||||
N. sp. b | ||||||||||
Bivalvia
- Arcida
- Arcidae
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Striarca webbervillensis
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1 specimen | |||||||||
Bivalvia
- Pectinida
- Propeamussiidae
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Amusium alabamense
(Aldrich 1886)
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4 specimens | |||||||||
Bivalvia
- Pholadida
- Corbulidae
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Corbula subengonata
Dall 1898
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1 specimen | |||||||||
recombined as Cuneocorbula subengonata | ||||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana sp.
Link 1807
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85 specimens | |||||||||
N. sp. b | ||||||||||
Pisces
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Pisces indet.
Linnaeus 1758
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12 specimens | |||||||||
synonym of Osteichthyes | ||||||||||
fish parts | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Falls |
Coordinates: | 31.3° North, 97.0° West (view map) | ||||
Paleocoordinates: | 36.1° North, 77.4° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Paleocene |
Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
*Period: | Tertiary | ||
Key time interval: | Danian | Zone: | Biscutum romeini |
Age range of interval: | 66.00000 - 61.60000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Local order: | bottom to top | ||||
Stratigraphy comments: composite section from CM-4 and Brazos-1, in foram zone Pa1 |
Lithology and environment
Primary lithology: | bioturbation unlithified silty claystone |
Includes fossils? | Y |
Lithology description: homogenized (from bioturbation) silty claystone with sparse fossils (hansen et al. 1987) | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | mesofossils |
Collection methods and comments
Collection excludes: | all microfossils,some macrofossils,difficult macrofossils |
Collection methods: | bulk,mechanical,field collection |
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 5577 | ||
Authorizer: | A. Miller | Enterer: | K. Layou |
Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
Created: | 1999-10-18 10:32:13 | Last modified: | 2010-07-24 15:32:13 |
Access level: | the public | Released: | 1999-10-18 10:32:13 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
333. | T. A. Hansen, B. Upshaw, E. G. Kauffman and W. Gose. 1993. Patterns of molluscan extinction and recovery across the Cretaceous-Tertiary boundary in east Texas; report on new outcrops. Cretaceous Research 14:685-706 [A. Miller/K. Layou/M. Uhen] |
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] |