Hensodon

Hensodon spinosus is an extinct pycnodontid that lived during the Upper Cenomanian of what is now Lebanon.^[1] H. spinosus superficially resembled a marine angelfish with a massive head, and a very spiny pectoral girdle. Different specimens have different arrangements of the horn-like frontal spines. One form has the horns arranged as a double-prong, assumed to be the male, and the other form, assumed to be the female, having the horns one after the other, like those of a rhinoceros.^[2]

Hensodon Temporal range: Upper Cenomanian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Artist's impression of a male (top) and female
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Pycnodontiformes
Family:	†Coccodontidae
Genus:	†Hensodon Kriwet, 2004
Species:	†H. spinosus
Binomial name
†Hensodon spinosus Kriwet, 2004

References

1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2008-04-30. Retrieved 2009-02-27.
2. CAPASSO, Luigi Lorenzo; Louis TAVERNE; Roy NOHRA (20 October 2010). "A re-description of Hensodon spinosus, a remarkable coccodontid fish(Actinopterygii, †Pycnodontiformes) from the Cenomanian (Late Cretaceous)of Haqel, Lebanon" (PDF). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre. 80: 145–162.^{[permanent dead link‍]}