Explore: Fossil Marine Mammals

Marine mammals are mammals that rely on marine ecosystems for their existence. They include animals such as cetaceans, pinnipeds, sirenians, sea otters

there were many synapsid species that looked like mammals. The lineage leading to today's mammals split up in the Jurassic; synapsids from this period

Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. The Society for Marine Mammalogy, an international scientific

dolphins and porpoises) are marine mammal descendants of land mammals. The pakicetids are an extinct family of hoofed mammals that are the earliest whales

Nicholas Pyenson is a paleontologist and the curator of fossil marine mammals at the Smithsonian Institution’s National Museum of Natural History in Washington

The mammals of Australia have a rich fossil history, as well as a variety of extant mammalian species, dominated by the marsupials, but also including

A living fossil is a term for an extant taxon that phenotypically resembles related species known only from the fossil record, though scientifically the

species of mammals have been described and divided into 27 orders. The study of mammals is called mammalogy. The largest orders of mammals, by number

872 species Recently extinct mammals are defined by the International Union for Conservation of Nature (IUCN) as any mammals that have become extinct since

208126. ISSN 0459-8113. S2CID 198245103. Ray, Clayton E. (1976). "Fossil Marine Mammals of Oregon". Systematic Zoology. 25 (4): 420–436. doi:10.2307/2412515