USGS 07085: Maastrichtian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
? Anchura hoggi Stephenson 1941
Anchura? hoggi Stephenson
Hercorhyncus malleiformis Stephenson 1941
Hercorhyncus malleiformis Stephenson
Pinella reticulata
Pinella reticulata Stephenson
Polychaeta - Sabellida - Serpulidae
Serpula cretacea
Serpula cretacea (Conrad)
Bivalvia - Carditida - Carditidae
Vetericardiella webbervillensis
Vetericardia webbervillensis Stephenson
Bivalvia - Carditida - Crassatellidae
Crassatella vadosa bexarensis
Crassatella vadosa bexarensis Stephenson
Bivalvia - Cardiida - Arcticidae
Veniella conradi Morton 1833
Veniella conradi (Morton)
Bivalvia - Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789
Trigonia sp.
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptonectes) bubonis (Stephenson 1941)
Pecten (Camptonectes) bubonis Stephenson
Bivalvia - Ostreida - Gryphaeidae
Exogyra costata (Say 1820)
original and current combination Exogyra (Exogyra) costata
Exogyra costata Say
Pycnodonte mutabilis
Gryphaea mutabilis Morton
Bivalvia - Ostreida - Flemingostreidae
Agerostrea falcata (Morton 1827)
Ostrea falcata Morton
Bivalvia - Nuculida - Nuculidae
Nucula ciboloensis
Nucula ciboloensis Stephenson
Gastropoda - Turritellidae
Turritella vertebroides jonesi
Turritella vertebroides jonesi Stephenson
Gastropoda - Aporrhaidae
Anchura bexarensis
Anchura bexarensis Stephenson
? Arrhoges ciboloensis
Anchura? ciboloensis Stephenson
Gastropoda - Neogastropoda - Buccinidae
Hydrotribulus asper
? category
Hydrotribulus asper Stephenson
Gastropoda - Neogastropoda - Melongenidae
Deussenia ciboloensis
Deussenia ciboloensis Stephenson
Gastropoda - Neogastropoda - Fasciolariidae
? Drilluta sp. Wade 1916
Drilluta? ssp.
? Bellifusus deatsvillensis
? category
Bellifusus? deatsvillensis Stephenson
? Graphidula multicostata Stephenson 1941
Graphidula? multicostata Stephenson
? Piestochilus levis Stephenson 1941
Piestochilus? levis Stephenson
Gastropoda - Neogastropoda - Paladmetidae
Paladmete elegans
Paladmete elegans Stephenson
Gastropoda - Neogastropoda - Pyropsidae
Pyropsis lanhami Stephenson 1941
Pyropsis lanhami Stephenson
Gastropoda - Naticidae
Euspira rectilabrum (Conrad 1858)
Polinices rectilabrum (Conrad)
Gyrodes supraplicatus Conrad 1858
? category
Gyrodes supraplicatus (Conrad)
Gastropoda - Patellida - Lottiidae
? Acmaea occidentalis
Acmaea? occidentalis (Hall and Meek)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
Dentalium spp.
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus pleurisepta (Conrad 1857)
Sphenodiscus pleurisepta (Conrad)
see common names

Geography
Country:United States State/province:Texas County:Bexar
Coordinates: 29.4° North, 98.5° West (view map)
Paleocoordinates:35.2° North, 77.1° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Period:Late/Upper Cretaceous *Epoch:Senonian
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Kemp Clay
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: calcareous claystone
Secondary lithology: sandstone
Lithology description: greenish-gray clay with interbedded masses of cross-bedded fine calcareous fossiliferous sandstone, some of which are found washed out into the bed of the creek nearby. 7721: boulders of calcareous fossiliferous sandstone loose in bed of Cibolo Creek.
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection excludes:all microfossils
Reason for describing collection:taxonomic analysis
Museum repositories:USGS
Collection method comments: 7085: Alexander Deussen 1910, 7720: L. W. Stephenson 1911, 7721: L. W. Stephenson 1911
Metadata
Also known as:Right bank of Cibolo Creek,about 1.5 miles west of Zuehl, in Bexar County;
Database number:7489
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:L. Eccles Research group:GCP,marine invertebrate
Created:2000-07-18 12:00:01 Last modified:2010-10-14 14:12:19
Access level:the public Released:2000-07-18 12:00:01
Creative Commons license:CC BY
Reference information

Primary reference:
444. L. W. Stephenson. 1941. The larger invertebrate fossils of the Navarro group of Texas. The University of Texas Publication 4101:1-625 [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]