Where: Parker County, Texas (32.7° N, 97.8° W: paleocoordinates 30.7° N, 52.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Twin Mountains Formation (Trinity Group), Late/Upper Aptian (122.5 - 112.0 Ma)
• 130 m below nearest outcrop of overlying Glen Rose Limestone; upper Twin Mountains Fm.
• bed-level stratigraphic resolution
Environment/lithology: "channel"; concretionary, cherty/siliceous sandstone
Size classes: macrofossils, mesofossils
Collected by SMU in 1950, 1990
Collection methods: quarrying, surface (float), surface (in situ), mechanical,
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 51709: authorized by Matthew Carrano, entered by Matthew Carrano on 13.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Gnathostomata | |
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Reptilia | |
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