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Sphyrna laevissima

Chondrichthyes - Carchariniformes - Sphyrnidae

Taxonomy
Galeocerdo laevissimus was named by Cope (1867). It is a 3D body fossil. Its type locality is James T. Thomas estate, which is in a Langhian offshore shelf horizon in the Calvert Formation of Maryland.

It was recombined as Carcharias laevissimus by Eastman (1904); it was recombined as Sphyrna laevissima by Leriche (1942) and Kent (2018).

Synonymy list
YearName and author
1867Galeocerdo laevissimus Cope p. 141 figs. Plate XXXI, Fig. 2
1868Galeocerdo laevissimus Cope p. 141
1904Carcharias laevissimus Eastman p. 84 figs. Plate XXXI, Fig. 2
1942Sphyrna laevissima Leriche p. 84
2018Sphyrna laevissima Kent p. 121

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
subclassElasmobranchiiBonaparte 1838
RankNameAuthor
infraclassEuselachii()
NeoselachiiCompagno 1977
Selachii
superorderGaleomorphi
orderCarchariniformes(Compagno 1973)
familySphyrnidaeGill 1872
genusSphyrnaRafinesque 1810
specieslaevissima()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 06:53:24
Modified: 2009-07-21 08:53:24
Source: o = order, subp = subphylum
References: Wagner 2017, Carroll 1988, Hendy et al. 2009

Age range: base of the Aquitanian to the top of the Serravallian or 23.03000 to 11.62000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Aquitanian23.03 - 20.44Colombia (La Guajira) Sphyrna laevissima (182218)
Langhian15.97 - 13.82USA (Maryland) Carcharias laevissimus (57782) Galeocerdo laevissimus (type locality: 55396)
Serravallian13.82 - 11.62USA (Maryland) Sphyrna laevissima (18518)