Black Peaks Formation Explained

Black Peaks Formation
Type:Geological formation
Age:Maastrichtian-Danian (Tiffanian)
~
Period:Danian
Prilithology:Mudstone
Otherlithology:Limestone
Country: United States
Coordinates:29.3°N -103.4°W
Paleocoordinates:36°N -82.8°W
Unitof:Tornillo Group
Overlies:Javelina 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) and the pterosaur Quetzalcoatlus northropi[1] have been among the fossils reported from the formation.[2] [3] The boundary with the underlying Javelina Formation has been estimated at 66.5 million years old.[4] The formation preserves the rays Rhombodus and Dasyatis, as well as many gar scales.[5]

See also

Further reading

Notes and References

  1. Andres . Brian . Langston . Wann . 2021-12-14 . Morphology and taxonomy of Quetzalcoatlus Lawson 1975 (Pterodactyloidea: Azhdarchoidea) . Journal of Vertebrate Paleontology . 41 . sup1 . 46–202 . 10.1080/02724634.2021.1907587 . 0272-4634. free . 2021JVPal..41S..46A .
  2. 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. .
  3. 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.
  4. Woodward, H. N. (2005). Bone histology of the sauropod dinosaur Alamosaurus sanjuanensis from the Javelina Formation, Big Bend National Park, Texas.
  5. 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.