Squaloidei

shark suborder

Learn about this topic in these articles:

In chondrichthyan: Annotated classification
Suborder Squaloidei (spiny dogfishes, bramble sharks, sleeper sharks, pygmy sharks)Anal fin lacking; snout not elongated into a beak; body subcylindrical (nearly round in section); not flattened dorsoventrally; margins of pectoral fin not expanded forward past first pair of gill openings. Widely distributed, found in all…
Read More