southwestern flanks of Hen Egg Mountain: Middle Santonian - Late/Upper Santonian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Mosasauridae
Clidastes liodontus Merriam 1894
1 individual
TMM 43343-1, complete skull and vertebrae
Ectenosaurus sp. Russell 1967
1 specimen
SMU76350
see common names

Geography
Country:United States State/province:Texas County:Brewster
Coordinates: 29.4° North, 103.5° West (view map)
Paleocoordinates:33.6° North, 73.4° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Santonian 10 m.y. bin:Cretaceous 6
Key time interval:Middle Santonian - Late/Upper Santonian Other zone:
Age range of interval:85.80000 - 83.50000 m.y. ago
Stratigraphy
Geological group:Terlingua Formation:Pen
Stratigraphic resolution:formation
Stratigraphy comments: Unknown position within the Pen Formation but assigned an age of middle to late Santonian on the basis of calcareous nanofossils.
Lithology and environment
Primary lithology: "limestone"
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:TMM 43343, Big Bend NP
Database number:151427
Authorizer:P. Mannion Enterer:J. Tennant
Modifier:M. Carrano Research group:vertebrate
Created:2013-10-01 19:04:21 Last modified:2021-07-01 11:04:09
Access level:the public Released:2013-10-01 19:04:21
Creative Commons license:CC BY
Reference information

Primary reference:

48383. G. L. Bell Jr., K. R. Barnes, and M. J. Polcyn. 2013. Late Cretaceous mosasauroids (Reptilia, Squamata) of the Big bend region in Texas, USA. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 103:571-581 [P. Mannion/J. Tennant/F. Aspromonte]