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Diodoceras avonensis

Cephalopoda - Nautilida - Trigonoceratidae

Taxonomy
Nautilus avonensis was named by Dawson (1868). It is the type species of Diodoceras.

It was recombined as Endolobus avonensis by Hyatt (1894); it was recombined as Diodoceras avonensis by Hyatt (1900).

Synonymy list
YearName and author
1868Nautilus avonensis Dawson
1891Nautilus avonensis Dawson
1894Endolobus avonensis Hyatt p. 536 figs. Pl 8, figs 36-39
1900Diodoceras avonensis Hyatt p. 525

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassNautiloideaAgassiz 1847
orderNautilidaAgassiz 1847
suborderTainoceratinaShimansky 1964
superfamilyTrigonoceratoidea(Hyatt 1884)
familyTrigonoceratidae
genusDiodoceras
speciesavonensis()

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.

Diodoceras avonensis Dawson 1868
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Diagnosis
ReferenceDiagnosis
J. W. Dawson 1868A large species, the outer chamber sometimes two inches or more in diameter. Whorls much flattened dorso-ventrally, slightly angulated at inner edge. Siphuncle dorsal, septa convex, about one-eighth of an inch apart. Belongs to genus Cryptoceras, D'Orbigny. Abundant at Windsor, and named after the Avon River, on the banks of which it occurs.