platybasic skull

platybasic skull
a skull with widely separated trabeculae, e.g. in Amia, Polypterus, Acipenser, Cypriniformes. The skull is dorsoventrally flattened, generally broad, lacks an interorbital septum, and the brain extends up to the ethmoid. Also called platytrabic

Dictionary of ichthyology. 2009.

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Look at other dictionaries:

  • platybasic — |plad.ē+ adjective Etymology: International Scientific Vocabulary platy + basic : relatively broad at the base a platybasic skull …   Useful english dictionary

  • tropibasic skull — a skull with eyes set close together, found in most Teleostei. Also called tropitrabic skull since it is the narrow distance between trabeculae which fuse early in development by means of a transverse commissure, the common trabecule, which later …   Dictionary of ichthyology

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