On the neurocranium, a horizontal plate arising on the ventral junction of the orbital wall and basal plate on each side which extends from the nasal capsule to the otic capsule; it forms the floor of the orbit. [ PHENOSCAPE:Wasila ]
Term information
Definition from: LJV Compagno. 2002. Sharks of the World Volume 2; FAO Species Catalogue for Fishery Purposes No. 1
A well-developed suborbital shelf is apparently primitive for shark-like fishes but is variably telescoped, reduced or lost in many squalomorph sharks and a few galeomorphs.