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An analysis of a partially complete tail fin fossil shows that Cretoxyrhina had a lunate (crescent-shaped) tail most similar with modern lamnid sharks, whale sharks, and basking sharks. The transition to tail vertebrae is estimated to be between the 140th and 160th vertebrae out of the total 230, resulting in a total tail vertebral count of 70 ...
Ptychodus was a large shark, previously estimated at 10 meters (33 feet) long based on extrapolation from teeth. [ 13 ] [ 14 ] The subadult specimen with the largest vertebra showed that it could reach lengths of 4.3–7.07 m (14.1–23.2 ft), so a 10 m (33 ft) length is possible, but more analysis is required for verification.
Archaeolamna (from Greek arche which turned into archaeo and Lamna, an extinct shark genus) [1] is an extinct genus of mackerel sharks that lived during the Cretaceous.It contains three valid species (one with two subspecies) which have been found in Europe, North America, and Australia.
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Stethacanthus is an extinct genus of shark-like cartilaginous fish which lived from the Late Devonian to Late Carboniferous epoch, dying out around 298.9 million years ago. Fossils have been found in Australia , Asia , Europe and North America .
Cosmopolitodus is an extinct genus of mackerel shark that lived between thirty and one million years ago during the late Oligocene to the Early Pleistocene epochs.Its type species is Cosmopolitodus hastalis, the broad-tooth mako (other common names include the extinct giant mako and broad-tooth white shark).
That promise was broken, as Romeo and Juliet contains a scene in which the then 16-year-old Hussey and 17-year-old Whiting lie naked in bed, recovering from an implied sexual act. The scene ...
Carcharomodus is an extinct genus of lamnid shark.Its only species is Carcharomodus escheri, [1] commonly nicknamed the serrated mako shark or Escher's mako shark.It is an extinct lamnid that lived during the Miocene and that was formerly thought to have been transitional between the broad-toothed "mako" Cosmopolitodus hastalis and the modern great white, but is now considered to be an ...