Squalodontidae closely related to the South Asian river dolphin ("Platanista gangetica"). The genus "Squalodon" was named by French naturalist Jean-Pierre Sylvestre de Grateloup in 1840 based on a jaw fragment he thought belonged to a reptile. Fossils discovered later, nevertheless, showed that this was a toothed whale. In extant odontocetes, however, the dentition is atavistic with all teeth reduced to simple, undifferentiated conical shapes. In squalodonts the teeth resemble those of the archaic whales, Archaeoceti, with conical incisors anteriorly and low-crowned, serrated teeth posteriorly. Squalodontidae Squalodontidae or the shark-toothed dolphins is an extinct family of large toothed whales who had long
California Endangered Species Act will be handled by the Habitat Conservation Planning Branch. The process includes reviewing a region where the species is in habitation, conducting a visit to where the species is, and presenting a report. After 90 days of the petition, the Habitat Conservation Planning Branch sends the report to the director for approval. If the petition is approved the species becomes a candidate species. As of March, 2015, CESA lists 49 animals as Endangered and another 37 as Threatened. An additional 4 species are candidates for listing as either threatened or endangered. No species are proposed for delisting. As of April,