Sohl and Koch OFR # 774: Late/Upper Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea
Echinoidea indet. (Leske 1778)
Echinoid sp. - originally entered as "Echinoidea sp."
unclassified
Vertebrata indet. Lamarck 1801
Fish parts
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871
1 specimen
Sphenodiscus sp.
Cephalopoda - Ammonitida - Scaphitidae
Discoscaphites sp. Meek 1870
1 specimen
Discoscaphites sp.
Bivalvia - Pholadida - Corbulidae
Corbula sp. Bruguière 1789
1 specimen
Corbula sp.
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Scabrotrigonia) castrovillensis
12 specimens
Pterotrigonia (Scabrotrigonia) cas
Bivalvia - Mytilida - Crenellidae
Crenella serica Conrad 1860
34 specimens
Crenella serica Conrad
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptonectes) sp. Meek 1864
1 specimen
Camptonectes (Comptonectes) sp.
Bivalvia - Pectinida - Plicatulidae
Plicatula (Plicatula) mullicaensis
25 specimens
Plicatula (Plicatula) mullicaensis
Plicatula (Plicatula) sp. Lamarck 1801
1 specimen
Plicatula (Plicatula) sp.
Bivalvia - Pectinida - Entoliidae
Syncyclonema sp. Meek 1864
3 specimens
Syncylonema sp. - originally entered as "Syncylonema sp."
Bivalvia - Ostreida - Gryphaeidae
Pycnodonte vesicularis (Lamarck 1806)
1 specimen
recombined as Pycnodonta vesicularis
Pycnodonte vesicularis Lamarck
Exogyra costata (Say 1820)
1 specimen
original and current combination Exogyra (Exogyra) costata
Exogyra costata Say
Bivalvia - Arcida - Cucullaeidae
Cucullaea (Idonearca) sp. (Conrad 1862)
1 specimen
Cucullaea (Idonearca) sp.
Cucullaea (Idonearca) capax Conrad 1858
1 specimen
recombined as Idonearca capax
Cucullaea (Idonearca) capax Conrad
Demospongiae - Clavulina - Clionaidae
Cliona sp.
Clione sp.
see common names

Geography
Country:United States State/province:Texas County:Medina
Coordinates: 29.2° North, 99.0° West (view map)
Paleocoordinates:35.0° North, 78.2° 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:Late/Upper Maastrichtian Ammonoid zone: Discoscaphites conradi
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Corsicana Marl
Stratigraphic resolution:formation
Stratigraphy comments: Haustator bilira assemblage zone
Lithology and environment
Primary lithology:gray sandy,calcareous siltstone
Environment:marine indet. Tectonic setting:passive margin
Taphonomy
Modes of preservation:body,original 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:Redus Well No. 1; USGS # 13844
Database number:4523
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 12:14:56
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]