TMM 40637-3, West Verde Creek: Early Albian, Texas
collected by WPA, R. T. Bird 1940

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Farlow 1987 1 individual
trackway 13-14
Reptilia - Grallatoridae
Langston 1974 5 individuals
Farlow 1987
trackway 1A-12
Pittman and Lockley 1995
    = Irenesauripus glenrosensis Shuler 1935
Vance 2002
Reptilia
23 individuals
TMM 40637-1,-2
Farlow et al. 1989
see common names

Geography
Country:United States State/province:Texas County:Medina
Coordinates: 29.6° North, 99.1° West (view map)
Paleocoordinates:35.7° North, 48.4° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Albian 10 m.y. bin: Cretaceous 4
Key time interval: Early Albian
Age range of interval: 113.2 - 110.1 m.y. ago
Stratigraphy
Geological group:Trinity Formation:Glen Rose Limestone Member:Upper
Stratigraphic resolution:bed
Stratigraphy comments: upper Glen Rose Limestone
The Glen Rose formation spans through four ammonite zones with ages between latest Aptian and early Albian. Young 1974 suggested the Kasanskyella spathi ammonite zone is latest aptian, the Hypacanthoplites cragini zone is earliest Albian, the Douvilleiceras mammillatum and Hypacanthoplites comalensis zones are early Albian and may extend into the middle Albian. The Salenia texana Zone and Corbula bed fall within the mammillatum zone. The benthic foraminifera Orbitolina texana also suggests a late aptian - early albian age and is found in basal levels and in the upper member (Stricklin et al. 1971). Scott et al. (2007) estimated that the age of the Glen Rose Formation ranges from 113.3 to 108.0 Ma.
Lithology and environment
Primary lithology:dolomitic lime mudstone
Secondary lithology: mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: dolomicrite/mudstone
Environment:peritidal
Geology comments: Very shallow and frequently exposed depositional regime evidence includes mud cracks, clotted micrite, fenestral bird's eye cavities, and pholad clam borings.
Taphonomy
Modes of preservation:mold/impression,trace
Degree of concentration:concentrated
Size of fossils:macrofossils
Spatial orientation:life position
Preservation of anatomical detail:excellent
Associated major elements:many
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:surface (in situ),observed (not collected)
Reason for describing collection:general faunal/floral analysis
Museum repositories:TMM
Collectors:WPA, R. T. Bird Collection dates:1940
Collection method comments: Discovered by R.T. BIrd in 1940
Metadata
Also known as:Davenport Ranch, WPA, Work Project No. 15087
Database number:52148
Authorizer:M. Carrano Enterer:K. Maguire, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-07-27 13:09:11 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-07-27 13:09:11
Creative Commons license:CC0
Reference information

Primary reference:
71453. Anonymous. 1940. The fourth quarterly report covering the quarter ending March 31, 1940 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project. O.P. No. 665-66-3-233. State Serial No. 300-88 1-29 [M. Carrano/M. Carrano]

Secondary references:

71466 Anonymous. 1940. The seventh quarterly report covering the quarter ending December 31, 1940 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project. O.P. No. 665-66-3-233. State Serial No. 300-88 1-44 [M. Carrano/M. Carrano]
54257 R. T. Bird. 1944. Did Brontosaurus ever walk on land?. Natural History 53:60-67 [M. Carrano/M. Carrano]
69370 J. O. Farlow. 1987. A Guide to Lower Cretaceous Footprints and Tracksites of the Paluxy River Valley, Somervell County, Texas. South-Central Geological Society of America Guidebook 50-A-20 [M. Carrano/M. Carrano]
82180 J. O. Farlow. 1992. Sauropod tracks and trackmakers: integrating the ichnological and skeletal records. Zubía 10:89-138 [M. Carrano/M. Carrano]
54844 J. O. Farlow. 2001. Acrocanthosaurus and the maker of Comanchean large theropod footprints. In D. H. Tanke & K. Carpenter (ed.), Mesozoic Vertebrate Life: New Research Inspired by the Paleontology of Philip J. Currie 408-427 [M. Carrano/M. Carrano]
14222ETE J. O. Farlow, J. G. Pittman, and J. M. Hawthorne. 1989. Brontopodus birdi, Lower Cretaceous dinosaur footprints from the U.S. Gulf Coastal Plain. In D. D. Gillette and M. G. Lockley (eds.), Dinosaur Tracks and Traces. Cambridge University Press, Cambridge 371-394 [M. Carrano/M. Carrano/M. Carrano]
29189ETE H. Haubold. 1971. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology. Part 18. Ichnia Amphibiorum et Reptiliorum Fossilium. 1-124 [M. Carrano/M. Carrano/M. Uhen]
83584 H. Haubold. 1974. Die Fossilen Saurierfährten [Fossil Reptile Tracks] 1-168 [M. Carrano/M. Carrano]
78266 J. W. Hawthorne. 1990. Dinosaur track-bearing strata of the Lampasas Cut Plain and Edwards Plateau, Texas. Baylor Geological Studies Bulletin 49:1-47 [M. Carrano/M. Carrano]
13937ETE W. Langston. 1974. Nonmammalian Comanchean tetrapods. In B. F. Perkins (ed.), Aspects of Trinity Division Geology. A Symposium on the Stratigraphy, Sedimentary Environments, and Fauna of the Comanche Cretaceous Trinity Division (Aptian and Albian) of Texas and Northern Mexico. Geoscience and Man 8:77-102 [M. Carrano/M. Carrano/M. Carrano]
63566 M. G. Lockley. 1986. A Guide to Dinosaur Tracksites of the Colorado Plateau and American Southwest. University of Colorado at Denver Geology Department Magazine, Special Issue 1:1-56 [M. Carrano/M. Carrano/M. Carrano]
82919 M. G. Lockley. 1992. La dinoturbaciion y el fenomeno de la alteración del sedimento por pisadas de vertebrados en ambientes antiguos []. In J. L. Sanz & A. D. Buscalioni (ed.), Los Dinosaurios y Su Entorno Biotico: Actas del Segundo Curso de Paleontologia in Cuenca 269-296 [M. Carrano/M. Carrano]
59735% 15000M. G. Lockley. 1994. Dinosaur ontogeny and population structure: Interpretations and speculation based on fossil footprints . In K. Carpenter, K. F. Hirsch, J. R. Horner (eds.), Dinosaur eggs and babies 347-365 [M. Carrano/M. Carrano/M. Uhen]
65420 M. G. Lockley, K. J. Houck, and N. K. Prince. 1986. North America's largest dinosaur trackway site: implications for Morrison Formation paleoecology. Geological Society America Bulletin 97:1163-1176 [M. Carrano/M. Carrano]
61886 M. G. Lockley and A. P. Hunt. 1995. Dinosaur Tracks and Other Fossil Footprints of the Western United States xxi-338 [M. Carrano/M. Carrano]
17979ETE C. A. Meyer and J. G. Pittman. 1995. A comparison between the Brontopodus ichnofacies of Portugal, Switzerland and Texas. In M. G. Lockley, V. F. dos Santos, C. A. Meyer, & A. P. Hunt (eds.), Aspects of Sauropod Paleobiology. GAIA 10:125-133 [M. Carrano/M. Carrano/M. Carrano]
62740 J. H. Ostrom. 1972. Were some dinosaurs gregarious?. Palaeogeography, Palaeoclimatology, Palaeoecology 11:287-301 [M. Carrano/M. Carrano/M. Carrano]
52596 B. F. Perkins and C. L. Stewart. 1971. Stop 7: Dinosaur Valley State Park. In B. F. Perkins (ed.), Trace Fossils; A Field Guide to Selected Localities in Pennsylvanian, Permian, Cretaceous, and Tertiary Rocks of Texas. Louisiana State University Miscellaneous Publication 71:56-59 [M. Carrano/M. Carrano]
14010ETE J. G. Pittman. 1989. Stratigraphy, lithology, depositional environment, and track type of dinosaur track-bearing beds of the Gulf Coastal Plain. In D. D. Gillette and M. G. Lockley (eds.), Dinosaur Tracks and Traces. Cambridge University Press, Cambridge 135-153 [M. Carrano/K. Maguire/M. Carrano]
17865ETE J. G. Pittman and M. G. Lockley. 1995. A review of sauropod dinosaur tracksites of the Gulf of Mexico basin. In M. G. Lockley, V. F. dos Santos, C. A. Meyer, & A. P. Hunt (eds.), Aspects of Sauropod Paleobiology. GAIA 10:95-108 [M. Carrano/M. Carrano/M. Carrano]
62737 W. A. S. Sarjeant. 1975. Fossil tracks and impressions of vertebrates. In R. D. Frey (ed.), The Study of Trace Fossils 283-324 [M. Carrano/M. Carrano]
71494 E. H. Sellards. 1941. Final report covering the period from March 4, 1939 ro September 30, 1941 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project iii-85 [M. Carrano/M. Carrano]
64380 S. A. Skinner and C. Blome. 1975. Dinosaur track discovery at Comanche Peak Steam Electric Station, Somervell County, Texas. Archeology Research Program, Southern Methodist University 1-16 [M. Carrano/M. Carrano]
78855 F. L. Stricklin and D. L. Amsbury. 1974. Depositional environments on a low-relief carbonate shelf, middle Glen Rose Limestone, central Texas. In B. F. Perkins (ed.), Aspects of Trinity Division Geology. A Symposium on the Stratigraphy, Sedimentary Environments, and Fauna of the Comanche Cretaceous Trinity Division (Aptian and Albian) of Texas and Northern Mexico. Geoscience and Man 8:53-66 [M. Carrano/M. Carrano]
82494 T. Thulborn. 1990. Dinosaur Tracks 1-410 [M. Carrano/M. Carrano]
15506ETE T. Vance. 2002. Annotated checklist and bibliography of the prehistoric reptile and dinosaur tracks and trackways of Texas. Occasional Papers of the Dallas Paleontological Society 5:17-79 [M. Carrano/K. Maguire/M. Carrano]