Orthocormus

Restoration of Orthocormus cornutus

Orthocormus is an extinct, prehistoric pachycormiform. It is known from three species found in Late Jurassic fossil deposits in Bavaria, Germany.

Description

This fish had a pointed rostrum, consisting of the rostrodermetmoid bone. It was also equipped with two large straight and sharp teeth. The rest of the jaws were armed with small conical teeth, although the others had sharp teeth at the front of the jaw.

Discovery

Orthocormus was first described in 1930, based on fossils found in Bavaria in the Solnhofen deposit.

Species

Orthocormus has three recognized species:

• Orthocormus cornutus Weitzel, 1930 (type species)
• Orthocormus roeperi Arratia & Schultze, 2013
• Orthocormus teyleri Lambers, 1988

Some images

Another restoration of Orthocormus cornutus, a pachycormid fish

Fossil of Orthocormus cornutus

Fossil of Orthocormus teyleri

Related pages

• Triggerfish
• Euthynotus
• Pachycormus (fish)

References

1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 2009-02-27.
2. "Orthocormus". Encyclopedia of Life.

Tail of Orthocormus roeperi

Further reading

• Arratia, Gloria; Schultze, Hans-Peter (2013). "Outstanding features of a new Late Jurassic pachycormiform fish from the Kimmeridgian of Brunn, Germany and comments on current understanding of pachycormiforms". Mesozoic Fishes 5 - Global Diversity and Evolution Editors: Gloria Arratia, Hans-Peter Schultze, Mark V. H. Wilson. Verlag Dr. F. Pfeil: 87–120.
• "Pachycormiformes". Paleobiology Database. Retrieved November 11, 2012.

Other websites

• Media related to Orthocormus at Wikimedia Commons