Black Peaks Formation
The Black Peaks Formation is a geological formation in Texas whose strata date back to the Late Cretaceous. Dinosaur remains (from the sauropod Alamosaurus) have been among the fossils reported from the formation.[1][2] The boundary with the underlying Javelina Formation has been estimated at about 66.5 million years old.[3] The formation preserves the rays Rhombodus and Dasyatis, as well as many gar scales.[4]
| Black Peaks Formation Stratigraphic range: Maastrichtian-Danian (Tiffanian) ~66.5–60 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Tornillo Group |
| Overlies | Javelina Formation |
| Lithology | |
| Primary | Mudstone |
| Other | Limestone |
| Location | |
| Coordinates | 29.3°N 103.4°W |
| Approximate paleocoordinates | 36.0°N 82.8°W |
| Region |  |
| Country |  |
  Black Peaks Formation (the United States)  Black Peaks Formation (Texas) | |
See also
- List of dinosaur-bearing rock formations
References
- Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588. ISBN 0-520-24209-2.
- Lehman, T. M. and A. B. Coulson. 2002. A juvenile specimen of the sauropod dinosaur Alamosaurus sanjuanensis from the Upper Cretaceous of Big Bend National Park,Texas. Journal of Paleontology 76(1): 156-172.
- Woodward, H. N. (2005). Bone histology of the sauropod dinosaur Alamosaurus sanjuanensis from the Javelina Formation, Big Bend National Park, Texas.
- Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63-69.
Further reading
- J. A. Fronimos and T. M. Lehman. 2014. New specimens of a titanosaur sauropod from the Maastrichtian of Big Bend National Park, Texas. Journal of Vertebrate Paleontology 34(4):883-899
- T. M. Lehman and K. Barnes. 2010. Champsosaurus (Diapsida: Choristodera) from the Paleocene of West Texas: Paleoclimatic Implications. Journal of Paleontology 84(2):341-345
- J. A. Schiebout. 1974. Vertebrate paleontology and paleoecology of Paleocene Black Peaks Formation, Big Bend National Park, Texas. Texas Memorial Museum Bulletin 24:1-88
- J. A. Wilson. 1967. Early Tertiary mammals. In R. A. Maxwell, J. T. Lonsdale, R. T. Hazzard, & J. A. Wilson (eds.), Geology of Big Bend National Park, Brewster County, Texas. The University of Texas Publication 6711:157-169
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