Anticheiropus is an ichnogenus of dinosaur footprint belonging to a saurischian.[1] It has only been discovered in Massachusetts (Portland Formation, Newark Supergroup). Two ichnospecies are known (both are known from a single footprint):[2][3] A. hamatus and A. pilulatus, both discovered around 1863 and named by Edward Hitchcock in 1865.[3]

Anticheiropus
Temporal range: Early Jurassic, 199–195 Ma
Trace fossil classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Ichnogenus: Anticheiropus
Hitchcock, 1865
Type ichnospecies
Anticheiropus hamatus
Hitchcock, 1865
Other ichnospecies
  • Anticheiropus pilulatus Hitchcock, 1865

It had large digits and its tracks were about 20 centimeters long, with no pads from the feet shown on the fossil itself, though the middle digit is the longest on its foot. One of the toes is offset from the rest of the foot, which is where the etymology of Anticheiropus stems from.

See also

edit

References

edit
  1. ^ Glut, Donald F. (2003). "Appendix: Dinosaur Tracks and Eggs". Dinosaurs: The Encyclopedia. 3rd Supplement. Jefferson, North Carolina: McFarland & Company, Inc. pp. 613–652. ISBN 0-7864-1166-X.
  2. ^ H. Haubold. 1971. In O. Kuhn (ed.), Handbuch der Paläoherpetologie [Encyclopedia of Paleoherpetology]. Part 18. Ichnia Amphibiorum et Reptiliorum Fossilium. Gistav Fischer Verlag, Stuttgart 1-124
  3. ^ a b E. Hitchcock. 1865. Supplement to the ichnology of New England. Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863. Wright and Potter, Boston 1-37