Paraisurus
Extinct genus of sharks
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Paraisurus is an extinct genus of mackerel sharks that lived during the Cretaceous period. It contains four valid species, which have been found in Europe, Asia, North America, and Australia.[7] A fifth species, P. amudarjensis, is now considered a synonym of P. compressus.[8] While this genus is mostly known from isolated teeth, an associated dentition of P. compressus was found in the Weno Formation of Texas.[9] It went extinct around the Albian-Cenomanian boundary, as a supposed Coniacian occurrence of "P. sp." is likely a misidentified pseudoscapanorhynchid.[10]
| Paraisurus Temporal range: | |
|---|---|
| |
| Teeth of P. macrorhizus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Division: | Selachii |
| Order: | Lamniformes |
| Family: | †Paraisuridae Herman, 1979[1] |
| Genus: | †Paraisurus Glickman, 1957[2] |
| Type species | |
| †Paraisurus macrorhizus | |
| Species | |
| Synonyms | |
