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Leptostyrax

Description

Leptostyrax is an extinct genus of sharks that lived during the Cenomanian epoch of the Cretaceous period. It is believed to be related to sand tiger sharks and can grow up to 30 feet (9 meters).


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4824584https://www.gbif.org/species/4824584
PaleoBioDB ID (PBDB)34616https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=34616
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Elasmobranchii : Lamniformes : Eoptolamnidae : Leptostyrax
Taxonomy (PBDB)Life : Animalia : Chordata : Chondrichthyes : Lamniformes : Eoptolamnidae : Leptostyrax
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
classChondrichthyesHuxley 1880
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii
-NeoselachiiCompagno 1977
-Selachii
superorderGaleomorphi
orderLamniformesBerg 1958
familyEoptolamnidaeKriwet et al. 2008
genusLeptostyraxWilliston 1900
Scientific NameLeptostyrax Williston, 1900
Name Published InKansas Quart., 9
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Leptostyraxgenusbelongs to Lamninaestated without evidenceHay, 1902
Leptostyraxgenusbelongs to Lamnidaestated without evidenceJordan, 1963
Leptostyraxgenusbelongs to Cretoxyrhinidaestated without evidenceSiverson, 1997
Leptostyraxgenusbelongs to Lamniformessecond handSepkoski, 2002
Leptostyraxgenusbelongs to Eoptolamnidaestated with evidenceKriwet et al., 2008
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance113 - 109 Ma
Early/Lower Cretaceous
Last Recorded Appearance93.9 - 89.8 Ma
Late/Upper Cretaceous
Environmentmarine (based on Vertebrata)
Motilityactively mobile (based on Lamniformes)
Dietcarnivore (based on Lamniformes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560
Wikipediahttps://en.wikipedia.org/wiki/Leptostyrax

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Leptostyrax bicuspidatus
species
accepted (GBIF)
listed (PBDB)
4113 Ma
Early/Lower Cretaceous
113 Ma
Early/Lower Cretaceous

Synonymy List

YearName and Author
1900Leptostyrax Williston
1902Leptostyrax Hay p. 304
1963Leptostyrax Jordan p. 599
1997Leptostyrax Siverson p. 460
2002Leptostyrax Sepkoski, Jr.
2008Leptostyrax Kriwet et al. p. 280

References

Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560
Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179, 1-868
Jordan D. S. (1963) The Genera of Fishes and a Classification of Fishes, Stanford University Press, 1-816
Siverson M. (1997) Sharks from the mid-Cretaceous Gearle Siltstone, Southern Carnarvon Basin, Western Australia, Journal of Vertebrate Paleontology 17 3, 453-465
Kriwet J., Klug S., et al (2008) A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii), Zoological Journal of the Linnean Society 154, 278-290 doi:10.1111/j.1096-3642.2008.00410.x
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
Kansas Quart., 9 - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. Bulletins of American Paleontology. 363, 1-560. - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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