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Isurus retroflexus

Chondrichthyes - Lamniformes - Lamnidae

Taxonomy
Oxyrhina retroflexa was named by Agassiz (1838).

It was recombined as Isurus retroflexus by Chapman (1918), Chapman and Cudmore (1924), Kocsis (2007), Pledge et al. (2015) and Kent (2018).

Sister species lacking formal opinion data
I. praeccursor, I. precursor, I. glaucus

Synonyms
Synonymy list
YearName and author
1838Oxyrhina retroflexa Agassiz figs. Pl 33, fig 10
1843Oxyrhina retroflexa Agassiz p. 281
1888Oxyrhina recta Davis p. 27 figs. Plate V, Fig. 14
1904Oxyrhina retroflexa Chapman and Pritchard p. 282
1918Isurus retroflexus Chapman p. 18
1924Isurus retroflexus Chapman and Cudmore p. 130
1926Oxyrhina retroflexa Leriche p. 409
1942Oxyrhina retroflexa Leriche p. 72
2007Isurus retroflexus Kocsis p. 34
2015Isurus retroflexus Pledge et al. p. 72
2018Isurus retroflexus Kent p. 70

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
—NeoselachiiCompagno 1977
superorderGaleomorphiiCompagno 1973
orderLamniformesBerg 1958
familyLamnidaeMüller and Henle 1838
genusIsurusRafinesque 1810
speciesretroflexus()

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.

†Isurus retroflexus Agassiz 1838
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Invalid names: Oxyrhina recta Davis 1888 [synonym]
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 07:05:21
Modified: 2009-07-21 09:05:21
Source: o = order, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Wagner 2023

Age range: base of the Rupelian to the top of the Messinian or 33.90000 to 5.33300 Ma

Collections (27 total)


Time interval Ma Country or state Original ID and collection number
Rupelian33.9 - 28.1New Zealand Isurus retroflexus (187476)
Chattian28.1 - 23.03Australia (Victoria) Isurus retroflexus (46166 174143)
Aquitanian23.03 - 20.44Australia (Tasmania) Isurus retroflexus (28307)
Early/Lower Miocene23.03 - 15.97Australia (Victoria) Oxyrhina retroflexa (72208)
Early/Lower Miocene23.03 - 15.97Slovakia Isurus retroflexus (47461)
Early/Lower Miocene - Middle Miocene23.03 - 11.608Australia (South Australia) Isurus retroflexus (159887)
Early/Lower Miocene - Middle Miocene23.03 - 11.608Australia (Victoria) Isurus retroflexus (51330)
Miocene23.03 - 5.333USA (South Carolina) Oxyrhina retroflexa (18506)
Miocene23.03 - 5.333Australia (Victoria) Oxyrhina retroflexa (204310)
Miocene23.03 - 5.333New Zealand (South Island) Oxyrhina recta (202915)
Otaian21.7 - 19.0New Zealand Isurus retroflexus (204195)
Burdigalian20.44 - 15.97Hungary Isurus retroflexus (210623)
Burdigalian - Langhian20.44 - 13.82USA (Maryland) Oxyrhina retroflexa (18518)
Langhian15.97 - 13.82Netherlands Isurus retroflexus (45505)
Langhian15.97 - 13.82Australia (Victoria) Isurus retroflexus (46165)
Middle Miocene15.97 - 11.608Japan (Gifu) Isurus retroflexus (161445)
Middle Miocene15.97 - 11.608Australia (South Australia) Isurus retroflexus (55601)
Serravallian13.82 - 11.62USA (Virginia) Oxyrhina retroflexa (71798)
Badenian13.65 - 12.7Belgium Isurus retroflexus (208831)
Badenian13.65 - 12.7Slovakia (Bratislava) Isurus retroflexus (161996)
Tortonian11.62 - 7.246Belgium Isurus retroflexus (217346)
Late/Upper Miocene11.608 - 5.333Japan Isurus retroflexus (51997 52009)
Late/Upper Miocene11.608 - 5.333Japan (Shimane) Isurus retroflexus (52005)
Late/Upper Miocene11.608 - 5.333Costa Rica (Limon) Isurus retroflexus (162678)
Messinian7.246 - 5.333Australia (Victoria) Oxyrhina retroflexa, Isurus retroflexus (46167)