Hybodontiformes Fossil range: Early Devonian to Late Cretaceous
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Infraclass:	Euselachii
Order:	†Hybodontiformes Owen, 1846
Families
Acrodontidae Hybodontidae Lonchidiidae Polyacrodontidae Ptychodontidae

Hybodontiformes was an order of sharks, they were characterised by possessing 1-2 pairs of hooked protrusions on their heads.

[edit] External links

• http://www.palaeos.com/Vertebrates/Units/070Chondrichthyes/070.600.html#Hybodontiformes
• http://www.helsinki.fi/~mhaaramo/metazoa/deuterostoma/chordata/chondrichthyes/elasmobranchii/hybodontiformes/hybodontiformes.html