P-4 (Brazos River K-T boundary, TX): Danian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pisces
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Pisces indet.
Linnaeus 1758
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30 specimens | |||||||||
| synonym of Osteichthyes | ||||||||||
| fish parts | ||||||||||
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Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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10 specimens | |||||||||
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Cephalopoda
- Ammonoidea
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Ammonoidea indet.
Zittel 1884
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62 specimens | |||||||||
| fragments | ||||||||||
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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1 specimen | |||||||||
| G. d | ||||||||||
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Gastropoda
- Litiopidae
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Litiopa sp.
Rang 1829
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74 specimens | |||||||||
| L. sp. a | ||||||||||
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Gastropoda
- Cerithiidae
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Bittium estellense
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4 specimens | |||||||||
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Gastropoda
- Turritellidae
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Turritella sp.
Lamarck 1799
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1 specimen | |||||||||
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Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
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63 specimens | |||||||||
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Gastropoda
- Neogastropoda
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Neogastropoda indet.
Thiele 1929
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2 specimens | |||||||||
| N. a (1), N. i (1) | ||||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Anomalofusus sp.
Wade 1916
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1 specimen | |||||||||
| A. substriata or subnodosus | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Turridae indet.
Swainson 1840
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2 specimens | |||||||||
| T. c | ||||||||||
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Beretra aff. ornatula
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1 specimen | |||||||||
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Amuletum sp.
Stephenson 1941
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5 specimens | |||||||||
| A. sp. d | ||||||||||
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Amuletum curvocostatum
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1 specimen | |||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana cf. travisana
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1 specimen | |||||||||
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Nuculana sp.
Link 1807
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121 specimens | |||||||||
| N. sp. b | ||||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula subengonata
Dall 1898
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5 specimens | |||||||||
| recombined as Cuneocorbula subengonata | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Cardiidae indet.
Lamarck 1809
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2 specimens | |||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Lucina cf. uhleri
Clark 1895
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1 specimen | |||||||||
| synonym of Myrtaea (Myrtaea) curta | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Vetericardiella webbervillensis
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5 specimens | |||||||||
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Bivalvia
- Pectinida
- Entoliidae
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Syncyclonema sp. n. sp.
Meek 1864
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2 specimens | |||||||||
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Bivalvia
- Ostreida
- Pteriidae
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Pteriidae ? indet.
Gray 1847
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3 specimens | |||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostreidae indet.
Rafinesque 1815
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39 specimens | |||||||||
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Bivalvia
- Arcida
- Arcidae
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Striarca webbervillensis
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5 specimens | |||||||||
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Bivalvia
- Arcida
- Parallelodontidae
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Nemodon eufaulensis
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3 specimens | |||||||||
| [entered as Nemodon eufalensis] | ||||||||||
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Anthozoa
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Anthozoa indet.
Ehrenberg 1834
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1 specimen | |||||||||
| solitary coral | ||||||||||
| 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: | T. imperforata |
| 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 PO | |||||
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: | 5573 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 1999-10-18 08:25:22 | Last modified: | 2010-07-24 15:30:49 |
| Access level: | the public | Released: | 1999-10-18 08:25:22 |
| 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] |