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Gyrosteus

Acipenseriformes - Chondrosteidae

Taxonomy
Gyrosteus was named by Agassiz (1843) [Sepkoski's age data: J Toar J Bath Sepkoski's reference number: 452,916]. Its type is Gyrosteus mirabilis.

It was assigned to Palaeonisciformes by Sepkoski (2002); and to Chondrosteidae by Agassiz (1889), Woodward (1895) and Hornung and Sachs (2020).

Species
G. mirabilis (syn. Sepia incomposita) (type species)

Synonymy list
YearName and author
1843Gyrosteus Agassiz p. 175
1889Gyrosteus Agassiz p. 36
1895Gyrosteus Woodward p. 34
2002Gyrosteus Sepkoski
2020Gyrosteus Hornung and Sachs p. 4

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
—Osteichthyes()
—Actinopterygii()
infraclassChondrosteiMüller 1844
orderAcipenseriformesBerg 1940
suborderChondrosteoideiGrande and Bemis 1991
familyChondrosteidaeEgerton 1858
genusGyrosteus

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.

G. †Gyrosteus Agassiz 1843
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†Gyrosteus mirabilis Agassiz 1843
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Invalid names: Sepia incomposita Simpson 1855 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Created: 2009-07-20 20:46:22
Modified: 2009-07-20 22:46:22
Source: o = order, subp = subphylum
References: Carroll 1988, Hendy et al. 2009

Age range: base of the Toarcian to the top of the Falciferum or 182.70000 to 182.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Falciferum183.0 - 182.0Germany G. mirabilis (207641)
Toarcian182.7 - 174.1United Kingdom (England) G. mirabilis (122167 122372 122373 122374 122375)