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The German naturalist Johann Karl Wilhelm Illiger was the first to recognize the pinnipeds as a distinct taxonomic unit; in 1811 he gave the name Pinnipedia to both a family and an order. American zoologist Joel Asaph Allen reviewed the world's pinnipeds in an 1880 monograph , History of North American pinnipeds, a monograph of the walruses ...
The oldest definitive pinniped fossils date from approximately 30.6–23 million years ago (Ma) in the North Pacific. Pinniped monophyly is consistently supported; the group shares a common ancestry with arctoid carnivorans, either ursids or musteloids. Crown pinnipeds comprise the Otariidae (fur seals and sea lions), Odobenidae (walruses), and Phocidae (seals), with paraphyletic ...
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Apr 22, 2024 · Pinnipeds (seals, sea lions, walruses, and their fossil relatives) are one of the most successful mammalian clades to live in the oceans. Despite a well-resolved molecular phylogeny and a global fossil record, a complete understanding of their macroevolutionary dynamics remains hampered by a lack of formal analyses that combine these two rich ...
Jan 1, 2018 · The name Pinnipedia was first proposed for fin-footed carnivores more than a century ago. Pinnipeds—fur seals and sea lions, walruses, and seals—are one of three major clades of extant marine mammals, having a fossil record going back at least to the late Oligocene (27–25 Ma—millions of years before present). The earliest pinnipeds were ...
May 3, 2017 · Pinnipeds are thought to have evolved from their terrestrial ancestors, a group termed the Canoidea. Since Canoidea consists of multiple groups such as the ursids (bears), mustelids (weasels and otters), and canids (dogs), there has historically been argument within the scientific community as to the specific phylogenetic origins of the three pinniped families (Arnason et al. 2006; Lowenstein ...
- kbiolsi@sfc.edu
Jun 11, 2014 · It’s the moment you’ve all been waiting for… stem-pinnipeds at Tet Zoo. Or, probable stem-pinnipeds anyway. This minimum-effort post is brought to you on the back of work showing ...
Mar 20, 2024 · Finding and uncovering fossil pinnipeds in the first place is a challenging task. “Some creatures are more likely to enter the fossil record than others,” says University of California, Santa ...
