Sohl and Koch OFR # 939: Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Lithophagidae indet.
Lithophagid borings
Bryozoa indet. Ehrenberg 1831
Bryozoa (encrusting)
Gastropoda - Naticidae
Naticidae indet. Guilding 1834
Naticid snail boring
Bivalvia - Cardiida - Tancrediidae
? Tancredia sp. Lycett 1850
1 specimen
Tancredia ? sp. - originally entered as "Tancredia ? sp."
Bivalvia - Cardiida - Cardiidae
Trachycardium sp. Mörch 1853
1 specimen
Trachycardium sp.
Bivalvia - Mytilida - Mytilidae
Mytilus sp. n. sp. Linnaeus 1758
28 specimens
Mytilus n. sp. (strong concentrics - originally entered as "Mytilus n. sp."
Bivalvia - Ostreida - Ostreidae
Crassostrea cortex
210 specimens
Crassostrea cortex (Conrad)
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
10 specimens
Anomia (Anomia) ornata Gabb
Bivalvia - Arcida - Arcidae
Arca rostellata
1 specimen
Arca rostellata (Morton)
see common names

Geography
Country:United States State/province:Texas County:Maverick
Coordinates: 28.7° North, 100.5° West (view map)
Paleocoordinates:34.9° North, 79.4° West
Geographic resolution:small collection
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:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Escondido Member:lower
Stratigraphic resolution:member
Stratigraphy comments: Haustator bilira assemblage zone.
Lithology and environment
Primary lithology:gray lithified calcareous sandstone
Environment:estuary/bay Tectonic setting:passive margin
Taphonomy
Modes of preservation:body,original calcite
Size of fossils:mesofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: Sohl collection
Metadata
Also known as:McFarland 27; USGS # 32853
Database number:4610
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:M. Manojlovic Research group:GCP,marine invertebrate
Created:1999-08-14 13:00:00 Last modified:2016-08-08 12:29:56
Access level:the public Released:1999-08-14 13:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

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]

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]