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Cyrtoceras murchisoni
Taxonomy
Cyrtoceras murchisoni was named by Barrande (1867). It is the type species of Protophragmoceras.
It was recombined as Protophragmoceras murchisoni by Hyatt (1900) and Teichert (1930).
It was recombined as Protophragmoceras murchisoni by Hyatt (1900) and Teichert (1930).
Sister species lacking formal opinion data
Synonymy list
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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.
†Cyrtoceras murchisoni Barrande 1867
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Diagnosis
Reference | Diagnosis | |
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A. Hyatt 1900 | Similar to the last, but form more compressed, and siphuncle near the venter (internal). Differs from Phragmoceras in having aperture open throughout life. |
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2004, Aberhan et al. 2004 |
Collections
No collection or age range data are available