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BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Carcharias acutus

Description

The milk shark (Rhizoprionodon acutus) is a species of requiem shark, and part of the family Carcharhinidae, whose common name comes from an Indian belief that consumption of its meat promotes lactation. The largest and most widely distributed member of its genus, the milk shark typically measures 1.1 m (3.6 ft) long, and can be found in coastal tropical waters throughout the eastern Atlantic and the Indo-Pacific regions. Occurring from the surface to a depth of 200 m (660 ft), this species is common near beaches and in estuaries, and has been recorded swimming up rivers in Cambodia. Juveniles are known to inhabit tidal pools and seagrass meadows. The milk shark has a slender body with a long, pointed snout and large eyes, and is a nondescript gray above and white below. This shark can be distinguished from similar species in its range by the long furrows at the corners of its mouth, and seven to 15 enlarged pores just above them.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8656485https://www.gbif.org/species/8656485
PaleoBioDB ID (PBDB)210101https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=210101
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Elasmobranchii : Lamniformes : Odontaspididae : Carcharias : Carcharias acutus
Taxonomy (PBDB)Life : Animalia : Chordata : Chondrichthyes : Lamniformes : Odontaspididae : Carcharias : Carcharias acutus
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
familyOdontaspididaeMüller and Henle 1839
genusCarchariasRafinesque 1810
speciesCarcharias acutusAgassiz 1843
Generic NameCarcharias
Scientific NameCarcharias acutus Agassiz, 1843
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Carcharias acutusspeciesbelongs to Carchariasstated with evidenceAgassiz, 1843
Carcharias acutusspeciesbelongs to Carcharias (Prionodon)stated without evidenceChapman and Pritchard, 1904
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance28.1 - 23.0 Ma
Cenozoic
Last Recorded Appearance28.1 - 23.0 Ma
Cenozoic
Environmentmarine (based on Vertebrata)
Motilityactively mobile (based on Lamniformes)
Dietcarnivore (based on Lamniformes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)L. Agassiz. 1843. Recherches Sur Les Poissons Fossiles. Tome III (livr. 15-16). Imprimérie de Petitpierre, Neuchatel
Wikipediahttps://en.wikipedia.org/wiki/Carcharias_acutus

Fossil Distribution

Synonymy List

YearName and Author
1843Carcharias acutus Agassiz p. 242
1904Carcharias (Prionodon) acutus Chapman and Pritchard p. 274

References

Agassiz L. , Recherches Sur Les Poissons Fossiles. Tome III (livr. 15-16). Imprimérie de Petitpierre, Neuchatel, 157-390
Chapman F., Pritchard G. B. (1904) Fossil fish remains from the Tertiaries of Australia, Proceedings of the Royal Society of Victoria 17, 267-297
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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