Grapevine Lake Dam Spillway: Middle Cenomanian, Texas
collected by K. Howe

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Tracheophyta indet. ()
"wood"
Osteichthyes indet. (Huxley 1880)
"bony fishes"
Reptilia
Theropoda indet. (Marsh 1881)
Noto 2015 1 specimen
pubis (DMNH 18139)
Coelurosauria indet. (Huene 1914)
Noto 2015 1 specimen
manual ungual (DMNH 18159)
    = Maniraptora indet. Gauthier 1986
Noto et al. 2022
Flexomornis howei n. gen., n. sp. Tykoski and Fiorillo 2010
Protohadros sp. Head 1998
Noto 2015 1 specimen
juvenile surangular (DMNH 18169)
Ampelognathus coheni n. gen., n. sp. Tykoski et al. 2023
Tykoski et al. 2023
Holotype DMNH 2021-05-02, a left dentary (almost complete)
Reptilia - Crocodyliformes
Crocodyliformes indet. (Hay 1930)
"crocodilians"
Reptilia
Testudinata indet. (Oppel 1811)
"turtles"
Chondrichthyes
Selachii indet. ()
"sharks"
see common names

Geography
Country:United States State/province:Texas County:Denton
Coordinates: 33.0° North, 97.1° West (view map)
Paleocoordinates:31.4° North, 61.7° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Cenomanian 10 m.y. bin:Cretaceous 5
Key time interval:Middle Cenomanian Ammonoid zone: Conlinoceras tarrantense
Age range of interval:100.50000 - 93.90000 m.y. ago
Stratigraphy
Geological group:Woodbine Formation:Lewisville
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: sandstone
Lithology description: "near the top of an isolated, sandy channel and levee deposit cut into gray, marine mudstone"
Environment:delta plain
Geology comments: in an overall "coastal marine depositional setting" (presumably meaning that the channel or levee was in a delta plain)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection excludes:some genera
Collection methods:surface (float),survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:DMNH
Collectors:K. Howe
Collection method comments: bones were found "spread out on the surface within centimeters of each other"
Taxonomic list comments:additional taxa include "sharks, bony fishes, turtles, crocodilians, dinosaurs, and abundant carbonized and petrified wood"
Metadata
Database number:94333
Authorizer:J. Alroy, M. Carrano, E. Dunne Enterer:J. Alroy, M. Carrano, E. Tasimov
Modifier:M. Carrano Research group:vertebrate
Created:2010-02-16 19:20:55 Last modified:2022-02-01 13:01:04
Access level:the public Released:2010-02-16 19:20:55
Creative Commons license:CC BY
Reference information

Primary reference:
32079. R. S. Tykoski and A. R. Fiorillo. 2010. An entantiornithine bird from the lower middle Cenomanian of Texas. Journal of Vertebrate Paleontology 30(1):288-292 [J. Alroy/J. Alroy]

Secondary references:

77809 C. R. Noto. 2015. Archosaur fossil localities in the Woodbine Formation (Cenomanian) of north central Texas. In C. R. Noto (ed.), Early- and Mid-Cretaceous Archosaur Localities of North-Central Texas. Guidebook for the field trip held October 13, 2015 in conjunction with the 75th Annual Meeting of the Society of Vertebrate Paleontology in Dallas, Texas 38-50 [M. Carrano/M. Carrano]
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]
86095 R. S. Tykoski, D. L. Contreras and C. Noto. 2023. The first small-bodied ornithopod dinosaur fromthe Lewisville Formation (middle Cenomanian) of Texas. Journal of Vertebrate Paleontology e2257238:1-10 [E. Dunne/E. Tasimov/M. Carrano]