SMU Loc. 245, Bear Creek: Middle Cenomanian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
"fishes"
Amphibia - Temnospondyli
"frogs"
Reptilia - Nodosauridae
8 specimens
SMU 72833, 73059, 73777, 74081, 74637
Reptilia - Hadrosauridae
4 specimens
SMU 73204, 73571, 73574, 74638
Reptilia
Noto et al. 2022 2 specimens
SMU 76946, 76949
1 specimen
SMU 73778
Noto et al. 2022
Noto et al. 2022 2 specimens
SMU 77213, 77214
Reptilia - Dromaeosauridae
Noto et al. 2022 3 specimens
SMU 73779, 76948, 77217
Reptilia - Troodontidae
Noto et al. 2022 1 specimen
SMU 76947
Reptilia
Noto et al. 2022 1 specimen
SMU 76809
Noto et al. 2022 1 specimen
SMU 77218
Eusuchia indet. Huxley 1875
1 specimen
SMU 74639
2 specimens
SMU 74640, 74641
Reptilia - Testudines
Testudines indet. Batsch 1788
"turtles"
Mammalia
1 specimen
see common names

Geography
Country:United States State/province:Texas County:Tarrant
Coordinates: 32.8° North, 97.1° West (view map)
Paleocoordinates:38.3° North, 55.3° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian 10 m.y. bin: Cretaceous 5
Key time interval: Middle Cenomanian
Age range of interval: 100.5 - 93.9 m.y. ago
Stratigraphy
Geological group:Woodbine Formation:Lewisville
Stratigraphic resolution:group of beds
Stratigraphy comments: vertebrates at ca. 8 levels across outcrop but not specified which taxa are found at each; formerly Arlington Mbr. of Woodbine Fm.
Lithology and environment
Primary lithology: sandy "shale"
Secondary lithology:fine,concretionary,ferruginous,phosphatic,quartzose calcareous,cherty/siliceous sandstone
Includes fossils?Y
Lithology description: "Here, the section consists of a lower shaly sandstone unit and an upper sandy shale unit interbedded with thin fossiliferous sandstone layers. Dark, lignitic and carbonaceous strata are also common. Thin sandstone units contain fine quartzose sand with calcareous and ferruginous cement, and are rich in chert pebbles and phosphatic nodules. A phosphatic pebble conglomerate surface marks a transgressive lag deposit. This surface contains abundant reworked vertebrate bones, primarily teeth and small fragments including fishes, frogs, turtles, crocodiles, dinosaurs, and a mammal. Terrestrial fossils are concentrated with those characteristic of brackish environments."
Environment:estuary/bay
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Fragmentation:occasional
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:bulk,surface (float),surface (in situ),sieve,field collection
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:102191
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:G. Varnham Research group:vertebrate
Created:2011-01-11 08:39:47 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-01-11 08:39:47
Creative Commons license:CC0
Reference information

Primary reference:
34725.ETE Y.-N. Lee. 1997. The Archosauria from the Woodbine Formation (Cenomanian) in Texas. Journal of Paleontology 71(6):1147-1156 [M. Carrano/M. Carrano]

Secondary references:

48139 C. R. Noto, D. C. D'Amore, S. K. Drumheller and T. L. Adams. 2022. A newly recognized theropod assemblage from the Lewisville Formation (Woodbine Group; Cenomanian) and its implications for understanding Late Cretaceous Appalachian terrestrial ecosystems. PeerJ 10:e12782:1-47 [M. Uhen/A. Bowman/M. Carrano]