Sohl and Koch OFR # 825: Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Vertebrata indet. Lamarck 1801
Fish parts
Vertebrata indet. Lamarck 1801
Shark parts
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus pleurisepta (Conrad 1857)
5 specimens
Sphenodiscus pleurisepta (Conrad)
Gastropoda - Naticidae
Gyrodes americanus
10 specimens
Gyrodes americanus Wade
Gastropoda - Neogastropoda
Neogastropoda indet. Thiele 1929
1 specimen
Neogastropods indeterminate
Gastropoda - Neogastropoda - Buccinidae
Aliofusus sp. n. sp. Stephenson 1941
2 specimens
Aliofusus n. sp. (crowded costae) - originally entered as "Aliofusus n. sp."
Bivalvia - Nuculanida - Malletiidae
Malletia longfrons
3 specimens
Malletia longfrons (Conrad)
Perissonata sp. (Conrad 1869)
1 specimen
original and current combination Perrisonota
Perrisonota sp.
Bivalvia - Cardiida - Mactridae
Cymbophora berryi
11 specimens
Cymbophora berryi (Gardner)
Cymbophora inflata
3 specimens
Cymbophora inflata Stephenson
Bivalvia - Cardiida - Cardiidae
Trachycardium sp. Mörch 1853
5 specimens
Trachycardium sp.
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
8 specimens
Anomia (Anomia) ornata Gabb
Bivalvia - Ostreida - Pteriidae
Pteria sp. Scopoli 1777
2 specimens
Pteria sp.
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
1 specimen
Ostrea sp.
Bivalvia - Arcida - Arcidae
Striarca cuneata
35 specimens
Striarca cuneata Gabb
Malacostraca
Malacostraca indet. (Latreille 1802)
Crab parts
see common names

Geography
Country:United States State/province:Texas County:Medina
Coordinates: 29.2° North, 99.3° West (view map)
Paleocoordinates:35.2° North, 78.0° 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
Stratigraphic resolution:formation
Stratigraphy comments: Haustator bilira assemblage zone.
Lithology and environment
Primary lithology:gray lithified 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:field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: Stephenson collection
Metadata
Also known as:Seco Cr; USGS # 7702
Database number:4548
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 12:22:55
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]