Genus
Valid Extinct

Krzyzanowskisaurus

Heckert 2005
Etymology Reptile de Krzyzanowski

Krzyzanowskisaurus is the name given to a genus of archosaur from the Late Triassic-aged Chinle Formation and it is a tooth taxon, based on fossils only of teeth and these teeth have been found in the U.S. states of Arizona and New Mexico. The original report described it as a "probable ornithischian" and Heckert (2005) suggests that Krzyzanowskisaurus teeth have biostratigraphic utility as an index fossil of the St. Johnsian sub-LVF.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
4
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
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PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Ornithischia Unranked clade
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Krzyzanowskisaurus Genus
Fossil sites 4 geolocated sites
Distribution
Top countries
🇺🇸 United States
4
Geological formations
Chinle
4
Temporal distribution
Norian (227.3–205.7 Ma)
2
Carnian (237–227.3 Ma)
2
Species (1)
Krzyzanowskisaurus hunti 237 Ma
Bibliography
Original description
A. B. Heckert. 2005. Krzyzanowskisaurus, a new name for a probable ornithischian dinosaur from the Upper Triassic Chinle Group, Arizona and New Mexico, USA. In A. B. Heckert & S. G. Lucas (eds.), Vertebrate Paleontology in Arizona. New Mexico Museum of Natural History and Science Bulletin 29:77-83
Bibliography (2)
A. B. Heckert, S. G. Lucas, and L. F. Rinehart, J. A. Spielmann, A. P. Hunt, R. Kahle. 2006. Revision of the archosauromorph reptile Trilophosaurus, with a description of the first skull of Trilophosaurus jacobsi, from the Upper Triassic Chinle Group, West Texas, USA. Palaeontology 49(3):621-640 DOI ↗
A. B. Heckert. 2002. A revision of the Upper Triassic ornithischian dinosaur Revueltosaurus, with a description of a new species. Upper Triassic Stratigraphy and Palaeontology. New Mexico Museum of Natural History and Science Bulletin 21:253-266