Phylogeny of lamniform sharks (Chondrichthyes: Elasmobranchii) and the contribution of dental characters to lamniform systematics

Labial Cartilages in the Smalltooth Sand

Labial Cartilages in the Smalltooth Sandtiger Shark, Odontaspis ferox (Lamniformes: Odontaspididae) and Their Significance to the Phylogeny of Lamniform Sharks

✍ Kenshu Shimada; Cynthia K. Rigsby; Sun H. Kim 📂 Article 📅 2009 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 268 KB

## Abstract Using computed tomography, we discovered labial cartilages (splanchnocranial components) in an enigmatic lamniform shark, __Odontaspis ferox__ (smalltooth sandtiger). We demonstrate that the presence of labial cartilages is plesiomorphic in Lamniformes, affirming that their “reduction”