Sohl and Koch OFR # 806: Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Turritella cf. forgemoli
7 specimens
Turritella cf. T. forgemoli Coquan - originally entered as "Turritella cf. forgemoli"
Bivalvia - Nuculanida - Malletiidae
Perissonata sp. (Conrad 1869)
2 specimens
original and current combination Perrisonota
Perrisonota sp.
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
1 specimen
Anomia (Anomia) ornata Gabb
Anomia (Anomia) argentaria Morton 1833
2 specimens
Anomia (Anomia) argentaria Morton
Bivalvia - Ostreida - Flemingostreidae
Cubitostrea tecticosta (Gabb 1860)
2 specimens
Cubitostrea tecticosta (Gabb)
Bivalvia - Cardiida - Cardiidae
Trachycardium sp. Mörch 1853
1 specimen
Trachycardium sp.
see common names

Geography
Country:United States State/province:Texas County:Medina
Coordinates: 29.4° North, 99.0° West (view map)
Paleocoordinates:35.3° North, 77.7° 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:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Escondido
Stratigraphic resolution:formation
Stratigraphy comments: Haustator bilira assemblage zone.
Lithology and environment
Primary lithology:phosphatic,gray silty sandstone
Environment:estuary/bay Tectonic setting:passive margin
Taphonomy
Modes of preservation:body,original calcite,replaced with calcite
Size of fossils:mesofossils
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: others collection
Metadata
Also known as:Quihi Well; USGS # 14048
Database number:4529
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:U. Smith Research group:GCP,marine invertebrate
Created:1999-08-14 13:00:00 Last modified:2010-10-14 22:48:33
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]