Little Brazos River (H76-69-4): Lutetian, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Eodrilla texana
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4 specimens | |||||||||
originally entered as "Eodrillia texana" | ||||||||||
Anthozoa
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Anthozoa indet.
Ehrenberg 1834
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24 specimens | |||||||||
"Coral sp. A (16 specimens), Coral sp. (8 specimens)" | ||||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Orthoyoldia psammotaea
(Dall 1898)
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4 specimens | |||||||||
Nuculana trivitate
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1 specimen | |||||||||
Bivalvia
- Nuculida
- Nuculidae
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Nucula sp.
Lamarck 1799
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6 specimens | |||||||||
Bivalvia
- Pholadida
- Corbulidae
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Caryocorbula deusseni
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5 specimens | |||||||||
Bivalvia
- Ostreida
- Pinnidae
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Atrina sp.
Gray 1842
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1 specimen | |||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostreidae indet.
Rafinesque 1815
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2 specimens | |||||||||
Ostreid | ||||||||||
Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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4 specimens | |||||||||
Gastropoda
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Gastropoda indet.
Cuvier 1795
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15 specimens | |||||||||
misc. gastropods, 15 species, 1 specimen each. | ||||||||||
Gastropoda
- Opisthobranchia
- Retusidae
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Rhizorus loisae
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1 specimen | |||||||||
Gastropoda
- Turritellidae
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Mesalia claibornensis
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33 specimens | |||||||||
Gastropoda
- Ranellidae
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Distorsio septendentata
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1 specimen | |||||||||
Gastropoda
- Neogastropoda
- Volutidae
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Athleta petrosus
(Conrad 1833)
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2 specimens | |||||||||
recombined as Athleta petrosa | ||||||||||
Gastropoda
- Neogastropoda
- Costellariidae
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Conomitra texana
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22 specimens | |||||||||
Gastropoda
- Neogastropoda
- Turridae
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Turridae indet.
Swainson 1840
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7 specimens | |||||||||
Turrid sp. A | ||||||||||
Turridae indet.
Swainson 1840
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3 specimens | |||||||||
Turrid sp. B | ||||||||||
Hesperiturris nodocarinatus
Gabb 1860
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4 specimens | |||||||||
Eucheilodon reticulatus
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3 specimens | |||||||||
= Eucheilodon reticulata
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Palmer and Brann 1965 | |||||||||
Gastropoda
- Perissityidae
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Buccitriton texanum
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289 specimens | |||||||||
Gastropoda
- Fasciolariidae
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Naticidae indet.
Guilding 1834
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1 specimen | |||||||||
"Naticid sp." | ||||||||||
Polinices aratus
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36 specimens | |||||||||
Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica meekana
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3 specimens | |||||||||
splendida | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Burleson |
Coordinates: | 30.5° North, 96.7° West (view map) | ||||
Paleocoordinates: | 32.6° North, 85.7° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
*Period: | Tertiary | ||
Key time interval: | Lutetian | ||
Age range of interval: | 47.80000 - 41.20000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Cook Mountain | Member: | Wheelock Marl |
Local section: | H76-69 | Local bed: | 4 |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | gray,red or brown unlithified "shale" | ||
Environment: | offshore | Tectonic setting: | passive margin |
Geology comments: "Dark blue-gray blocky clay with scattered well preserved shell. Clay becomes browner, more fissile and less fossiliferous going up section." |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Collection methods: | bulk,mechanical,sieve,field collection |
Reason for describing collection: | paleoecologic analysis |
Metadata
Also known as: | H76-69 | ||
Database number: | 1451 | ||
Authorizer: | T. Hansen, J. Sessa | Enterer: | M. Sommers, J. Sessa |
Modifier: | J. Alroy | Research group: | marine invertebrate |
Created: | 1999-04-20 10:51:49 | Last modified: | 2006-09-14 19:54:24 |
Access level: | the public | Released: | 2000-11-20 13:53:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
42. | T. A. Hansen. 1978. Ecological control of evolutionary rates in Paleocene - Eocene marine molluscs. Ph.D. Thesis, Yale University 1-310 [T. Hansen/M. Sommers/A. Clement] |
Secondary references:
11845 | K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy] |