Sohl and Koch OFR # 861: Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Vertebrata indet. Lamarck 1801
Shark parts
Bivalvia - Arcida - Arcidae
Striarca cuneata
102 specimens
Striarca cuneata Gabb
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
6 specimens
Ostrea sp.
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
4 specimens
Anomia (Anomia) ornata Gabb
Anomia (Anomia) sp. Linnaeus 1758
1 specimen
Anomia (Anomia) sp.
Bivalvia - Cardiida - Tellinidae
? Tellina sp. Linnaeus 1758
1 specimen
Tellina ? sp. - originally entered as "Tellina ? sp."
Tellina sp. Linnaeus 1758
1 specimen
Tellina sp.
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871
3 specimens
Sphenodiscus sp.
Gastropoda
Gastropoda indet. Cuvier 1795
1 specimen
indeterminate gastropods
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
5 specimens
Turritella sp.
Gastropoda - Neogastropoda
Neogastropoda indet. Thiele 1929
4 specimens
Neogastropods indeterminate
see common names

Geography
Country:United States State/province:Texas County:Zavala
Coordinates: 29.1° North, 100.1° West (view map)
Paleocoordinates:35.2° North, 78.9° 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:gray lithified calcareous 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
Collection excludes:some macrofossils
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: others collection
Metadata
Also known as:Finley ranch; USGS # 10292
Database number:4575
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 12:24:50
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]