Hobson Ranch, SMU Loc. 261: Late/Upper Aptian, Texas
collected by SMU 1950, 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Osteichthyes
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? Osteichthyes indet.
Huxley 1880
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1 specimen | |||||||||
| tooth | ||||||||||
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Reptilia
- Theropoda
- Carcharodontosauridae
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Acrocanthosaurus atokensis
Stovall and Langston 1950
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1 individual | |||||||||
| SMU 74646 (1 measurement) | ||||||||||
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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2 specimens | |||||||||
| teeth | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Texas | County: | Parker |
| Coordinates: | 32.7° North, 97.8° West (view map) | ||||
| Paleocoordinates: | 30.7° North, 52.4° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 321 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late/Upper Aptian | ||
| Age range of interval: | 119.50000 - 113.00000 m.y. ago |
Stratigraphy
| Geological group: | Trinity | Formation: | Twin Mountains | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 130 m below nearest outcrop of overlying Glen Rose Limestone; upper Twin Mountains Fm. | |||||
Lithology and environment
| Primary lithology: | "cross stratification",concretionary cherty/siliceous sandstone |
| Includes fossils? | Y |
| Lithology description: "a cross-bedded and concretionary sandstone facies" | |
| Environment: | "channel" |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | random |
| Associated major elements: | all |
| Fragmentation: | frequent |
| Encrustation: | none |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float),surface (in situ),mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | SMU | Collection dates: | 1950, 1990 |
Metadata
| Database number: | 51709 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-06-13 14:34:03 | Last modified: | 2022-06-14 12:56:48 |
| Access level: | the public | Released: | 2005-06-13 14:34:03 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13773. | ETE | J. D. Harris. 1998. A reanalysis of Acrocanthosaurus atokensis, its phylogenetic status, and paleobiogeographic implications, based on a new specimen from Texas. New Mexico Museum of Natural History and Science Bulletin 13:1-75 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 77811 | T. L. Adams. 2015. Archosaurs of the Lower Cretaceous Trinity Group of central and north central Texas with a stop at the Jones Ranch Quarry. 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 5-13 [M. Carrano/M. Carrano] | |
| 7057 | P. J. Currie and K. Carpenter. 2000. A new specimen of Acrocanthosaurus atokensis (Theropoda, Dinosauria) from the Lower Cretaceous Antlers Formation (Lower Cretaceous, Aptian) of Oklahoma, USA. Geodiversitas 22(2):207-246 [M. Carrano/M. Carrano/M. Carrano] | |
| 17040 | ETE | V. L. Yarborough. 1995. Removal of Acrocanthosaurus bones from calcite cemented siliceous sandstone using diamond saws. Journal of Vertebrate Paleontology 15(3, suppl.):61A [M. Carrano/M. Carrano] |