Unformatted text preview: ray-finned fish Member of the class Actinopterygii, aquatic osteichthyans with fins supported by long, flexible rays, including tuna, bass, and herring. Reptile Member of the clade of amniotes that includes tuataras, lizards, snakes, turtles, crocodilians, and birds. Somite One of a series of blocks of mesoderm that exist...
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- Spring '10
- Membranes, Pterosaur Winged reptile, tough outer armor