“The freshwater sawfish, a ray, is related to stingrays, skates, sharks, and other fishes with cartilaginous skeletons.”

“Among vertebrates, only the cartilaginous fishes, lungfishes and amphibians possess exceptionally large C-values.”

“That is, the cartilaginous radials extend to margins of pectoral fin, functionally and physically displacing the keratinous ceratotrichia.”

“The joint between the incus and stapes is likewise a cartilagenous joint, with a tendency to ossify in older humans.”

“Also its bones were not those of a mammal, but the cartilagenous bones of a fish.”

“Each gill is supported by a cartilagenous or bony gill arch.”