Search results
Results from the WOW.Com Content Network
Squalicorax, commonly known as the crow shark, is a genus of extinct lamniform shark known to have lived during the Cretaceous period. The genus had a global distribution in the Late Cretaceous epoch. Multiple species within this genus are considered to be wastebasket taxon due to morphological similarities in the teeth.
Leptostyrax is an extinct genus of mackerel sharks that lived during the Cretaceous. It contains two valid species, L. macrorhiza and L. stychi, found in North America, Europe, Africa, and Australia. [2] Vertebrae tentatively assigned to L. macrorhiza suggest lengths of 6.3–8.3 m (21–27 ft), making it one of the largest Cretaceous sharks. [6]
Nanocorax is an extinct genus of mackerel sharks that lived during the Late Cretaceous. It contains two valid species, N. crassus and N. microserratodon. It has been found in North America, Europe, North Africa, and the Middle East. [1]
The subtropical regions of the Late Cretaceous that Cretoxyrhina inhabited were dominated by sharks and turtles like the Cretodus and Protosphargis in this fossil. Cretoxyrhina had a cosmopolitan distribution with fossils having been found worldwide. Notable locations include North America, Europe, [67] Israel, [68] and Kazakhstan. [8]
Cretodus lived during the Late Cretaceous, ranging from the Cenomanian [2] to the Coniacian [3] (approximately 100 to 89 million years ago). The genus is well-known from strata deposited in the Western Interior Seaway ( North America ), [ 1 ] [ 2 ] [ 3 ] and from the Late Cretaceous of Europe , [ 4 ] Africa , and possibly Asia .
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.
An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
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.