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Basilosaurids, which had tiny hind limbs and flipper-shaped fore limbs, were obligatorily aquatic and came to dominate the oceans. They still lacked the echolocation and baleen of modern odontocetes and mysticeti. [7] Basilosaurids and dorudontids are the oldest obligate aquatic cetaceans for which the entire skeleton is known.
Remingtonocetidae was established by Kumar & Sahni 1986.It was considered monophyletic by Uhen 2010.It was assigned to Odontoceti by Benton 1993; to Remingtonocetoidea by Mitchell 1989 and Rice 1998; to Archaeoceti by Bianucci & Landini 2007; to Archaeoceti by Kumar & Sahni 1986, Fordyce & Barnes 1994, Fordyce, Barnes & Miyazaki 1995, McKenna & Bell 1997, Fordyce & Muizon 2001, Gingerich et al ...
Remingtonocetus domandaensis was named by Gingerich et al. 2001 based on a partial skeleton found in a Lutetian coastal shale in the Domanda Formation of Pakistan. [3] Remingtonocetus is larger, has a broader rostrum, and longer premolars than Andrewsiphius. It is smaller than, has more gracile premolars and molars than Dalanistes.
Zygorhiza, mounted skeleton. Basilosaurids ranged in size from 4 to 16 m (13 to 52 ft) and were fairly similar to modern cetaceans in overall body form and function. [ 7 ] Some genera tend to show signs of convergent evolution with mosasaurs by having long serpentine body shape, which suggests that this body plan seems to have been rather ...
Cetacea.org homepage; Walker's Mammals of the World Online - Cetaceans Archived 2004-10-11 at the Wayback Machine (Unfortunately, the online edition of Walker's Mammals of the World is no longer available. The print edition may still be purchased through the Johns Hopkins University Press.) Cetacean Society International
Skeletal drawing of Maiacetus. Drawing of Rodhocetus.. There were many genera, and some of these are very well known (e.g., Rodhocetus).Known protocetids had large fore- and hindlimbs that could support the body on land, and it is likely that they lived amphibiously: in the sea and on land.
Cetacea (/ s ɪ ˈ t eɪ ʃ ə /; from Latin cetus 'whale', from Ancient Greek κῆτος 'huge fish, sea monster') is an infraorder of aquatic mammals belonging to the order Artiodactyla that includes whales, dolphins and porpoises.
Basilosaurus (meaning "king lizard") is a genus of large, predatory, prehistoric archaeocete whale from the late Eocene, approximately 41.3 to 33.9 million years ago (mya). ). First described in 1834, it was the first archaeocete and prehistoric whale known to scienc