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Cymatoceras pseudoatlas

Cephalopoda - Nautilida - Nautilidae

Taxonomy
Nautilus (Cymatoceras) pseudoatlas was named by Yabe and Shimizu (1924) [DISTRIBUTION: Senonian; Japan.]. It is not a trace fossil. Its type locality is North of Himenoura, Amakusa, which is in a Santonian marine siliciclastic in Japan.

It was recombined as Cymatoceras pseudoatlas by Kobayashi (1954), Matsumoto and Muramoto (1983), Wilmsen and Yazykova (2003).

Synonymy list
YearName and author
1924Nautilus (Cymatoceras) pseudoatlas Yabe and Shimizu
1954Cymatoceras pseudoatlas Kobayashi p. 15
1983Cymatoceras pseudoatlas Matsumoto and Muramoto p. 90 figs. Pl 18, fig 1
2003Cymatoceras pseudoatlas Wilmsen and Yazykova p. 485 figs. 5, 6A

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassNautilia(Wade 1988)
orderNautilidaAgassiz 1847
superfamilyNautiloidea(de Blainville 1825)
familyNautilidaede Blainville 1825
genusCymatocerasHyatt 1884
speciespseudoatlas(Yabe and Shimizu 1924)

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.

†Cymatoceras pseudoatlas Yabe and Shimizu 1924
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height2111.195.0130.0112.524.7
shell diameter2173.5140.0215.0177.553.0
shell inflation212.610.016.013.04.24

Composition: aragoniteo
Environment: marinec
Locomotion: actively mobilef
Life habit: nektonicf
Diet: carnivoref
Vision: well-developedc
Created: 2009-09-27 10:10:59
Modified: 2009-09-27 12:10:59
Source: f = family, o = order, c = class
References: Kiessling 2004, Kiessling 2003, Hendy et al. 2009

Age range: base of the Santonian to the top of the Late/Upper Campanian or 85.70000 to 72.20000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Santonian85.7 - 83.6Japan Cymatoceras pseudoatlas (166246 166248)
Santonian85.7 - 83.6Japan Nautilus pseudoatlas (166243)
Late/Upper Campanian83.6 - 72.2Russian Federation Cymatoceras pseudoatlas (172976 172977)