Search results
Results from the WOW.Com Content Network
The fact that the bite marks were found on the tooth's roots further suggest that the shark broke the whale's jaw during the bite, suggesting the bite was extremely powerful. The fossil is also notable as it stands as the first known instance of an antagonistic interaction between a sperm whale and an otodontid shark recorded in the fossil record.
The monstrous predator — which measured as long as a great white shark — belongs to a brand new species, according to a Dec. 12 University of Cincinnati news release.
This list is of prehistoric mammals known from the fossil record of the Japanese archipelago. For extant mammals from the area, see List of mammals of Japan (which includes the recently extinct species on the IUCN Red List [ 1 ] and its domestic counterpart the Ministry of the Environment Red List [ 2 ] ).
On April 25, 1977, the Japanese trawler Zuiyō Maru, fishing east of Christchurch, New Zealand, caught a strange, unknown creature in the trawl.The crew was convinced it was an unidentified animal, [4] but despite the potential biological significance of the curious discovery, the captain, Akira Tanaka, decided to dump the carcass into the ocean again so not to risk spoiling the fish caught.
Prehistoric shark stubs (113 P) Pages in category "Prehistoric sharks" The following 9 pages are in this category, out of 9 total. This list may not reflect recent ...
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).
Propristiophorus is an extinct genus of sawshark that lived in the Late Cretaceous.It contains a single named species, P. tumidens, from Lebanon. [1] Additional unnamed species have been found in Antarctica, Japan, and Madagascar. [2]
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.