Ptychodus - Wikipedia
Ptychodus (from Greek: πτυχή ptyche 'fold' and Greek: ὀδούς odoús 'tooth') [1] is a genus of extinct large durophagous (shell-crushing) lamniform sharks from the Cretaceous period, spanning from the Albian to the Campanian. [2] Fossils of Ptychodus teeth are found in many Late Cretaceous marine sediments worldwide. [3]
Paleontologists Unravel Secrets of 'Enigmatic' 33-Foot Prehistoric ...
2024年4月24日 · The remains belong to a little-known prehistoric shark genus called Ptychodus, which has been a “long-standing enigma” for scientists, according to the new paper, published Wednesday in the...
Fossil of an ancient shark that swam in the age of dinosaurs ... - CNN
2024年7月15日 · Ancient relative of the great white shark. Most species of Ptychodus lived between 100 and 80 million years ago during the late Cretaceous period. The deposits in which the fossils were...
The Astonishing Rediscovery Of The Ancient Shark Ptychodus - Forbes
2024年5月1日 · For paleontologists, the prehistoric shark genus Ptychodus has been dubbed a paleontological mystery — a puzzle missing crucial pieces to truly see the whole picture. But recent discoveries in...
Stunning Remains of Great White Shark's Giant Ancestors Reveal a ...
The fossils finally confirm that Ptychodus are a type of shark belonging to the Lamniform family, which includes great white sharks. Ptychodus would have dwarfed modern great whites, reaching up to a whopping 9.7 meters (32 feet) in length.
Exquisite fossils of Cretaceous shark solve mystery of how it hunted
2024年4月24日 · Six full-body fossils of Ptychodus sharks have been formally analysed for the first time, revealing that they were fast swimmers that preyed on shelled creatures
Ptychodus - Prehistoric Wildlife
Ptychodus was one of the most specialist sharks of the late Cretaceous oceans, as the teeth are adapted for crushing shells rather than tearing through flesh. As such the teeth are rounded rather than being triangular and pointed, and have a series of ridges that run across the surface of the crown. These ridges would ...
Ancient shark was a shell-crushing giant - National Geographic
A restoration of the giant, durophagous shark Ptychodus, courtesy paleo-artist Matt Celeskey. The study of prehistoric sharks is no easy task.
The extinct shark, Ptychodus (Elasmobranchii, Ptychodontidae) in …
Ptychodus ubiquitously inhabited epicontinental seas of Europe during most of the Cretaceous with the most diverse assemblages coming from southern England, northern Italy, Belgium, and European Russia.
Articulated remains of the extinct shark Ptychodus ... - PLOS
2020年4月22日 · Articulated remains of the extinct shark Ptychodus (Elasmobranchii, Ptychodontidae) from the Upper Cretaceous of Spain provide insights into gigantism, growth rate and life history of ptychodontid sharks