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Coelocyclus ornatus
Taxonomy
Bellerophon ornatus was named by Northrop (1939). It is not extant. Its type locality is Northrop Locality 019. Along crest of Reddish Point ridge, east of Port Daniel, which is in a Pridoli deep subtidal shelf lime mudstone in the West Point Formation of Canada.
It was recombined as Coelocyclus ornatus by Wagner (2023).
It was recombined as Coelocyclus ornatus by Wagner (2023).
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.
†Coelocyclus ornatus Northrop 1939
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. A. Northrop 1939 | Shell small; width equal to diameter, 18 mm. Three to four volutions. Whorl
about three times as wide as high. Slit band ridge about 0.9 mm. wide. Ornamentation consists of growth lamellae, about 6 in 5 mm., diverging from the band at an angle of 60 degrees; as they pass outward, they diverge further until they assume a course at right angles to the slit band. In the interspaces between the growth lamellae, and parallel to them, are numerous exceedingly fine striae. The youngest whorl, exposed by the cross section, is only 3 mm. in diameter but exhibits the distinctive ornamentation. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy 2009, Kiessling 2004 | |||||