TMM 43072: Middle Campanian, Texas
collected by T. M. Lehman, W. Langston, E. Yarmer, R. Rainey 1987

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Lamniformes - Mitsukurinidae
Scapanorhynchus texanus (Roemer 1852)
Reptilia - Testudines - Protostegidae
Terlinguachelys fischbecki n. gen., n. sp. Lehman and Tomlinson 2004
(1 measurement)
unclassified
Ophiomorpha sp. Lundgren 1891
see common names

Geography
Country:United States State/province:Texas County:Brewster
Coordinates: 29.2° North, 103.6° West (view map)
Paleocoordinates:35.7° North, 77.1° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Middle Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
Stratigraphy
Formation:Aguja Member:Rattlesnake Canyon
Stratigraphic resolution:bed
Stratigraphy comments: "near the top of the Rattlesnake Mountain member of the Aguja Formation... about 12 m above the base of this unit" at this locality
unit is "middle Campanian" based on bivalves and ammonites
Lithology and environment
Primary lithology:burrows,very fine sandstone
Lithology description: "matrix of the specimen consists of crudely bedded very fine sandstone with Ophiomorpha burrows"; lithification unclear
Environment:shoreface
Geology comments: "middle and upper shoreface deposits that accumulated during landward retreat of a barrier island comlex"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Associated major elements:some
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (float),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:TMM
Collectors:T. M. Lehman, W. Langston, E. Yarmer, R. Rainey Collection dates:1987
Collection method comments: mostly excavated, but parts were collected as surface float
Taxonomic list comments:bivalves from "these sediments" are listed but apparently are not from this exact horizon
Metadata
Also known as:East of Santa Elena Canyon
Database number:90466
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:2009-07-28 16:28:02 Last modified:2009-07-28 19:28:02
Access level:the public Released:2009-07-28 16:28:02
Creative Commons license:CC BY
Reference information

Primary reference:

30428. T. M. Lehman and S. L. Tomlinson. 2004. Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas. Journal of Paleontology 78(6):1163-1178 [J. Alroy/J. Alroy/J. Alroy]