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Ibexocrinus
Taxonomy
Ibexocrinus was named by Lane (1970) [Sepkoski's age data: O Aren-u O Llvi-u].
It was assigned to Homocrinidae by Lane (1970) and Ausich (1998); and to Disparida by Sepkoski (2002).
It was assigned to Homocrinidae by Lane (1970) and Ausich (1998); and to Disparida by Sepkoski (2002).
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.
G. †Ibexocrinus Lane 1970
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| N. G. Lane 1970 | A homocrinoid with arms that branch isotomously on the primaxils, and with a heterotomously alternate pattern distally; without a distinctive anal sac or enlarged proximal columnals; with the Bray super- and inferradial together slightly higher than simple radial plates in the A and D rays. |