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Columbocystis
Taxonomy
Columbocystis was named by Bassler (1950) [Sepkoski's age data: O Cara-l].
It was assigned to Springerocystidae by Bassler (1950); and to Paracrinoidea by Sepkoski (2002).
It was assigned to Springerocystidae by Bassler (1950); and to Paracrinoidea by Sepkoski (2002).
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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. †Columbocystis Bassler 1950
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†Columbocystis ovata Parsley 1975
†Columbocystis typica Bassler 1950
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. S. Bassler 1950 | Summit of theca supports a flat platform composed of five thick, wedge-shaped, oral plates centering about a small oral aperture from which diverge one anterior and two lateral narrow food grooves, the lateral ones branching within 1 mm. The food grooves terminate in five facets on the lateral sides of the platform to which the brachioles were attached and curving upward became erect. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Turinian or 457.30000 to 453.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | USA (Tennessee) | C. ovata (197206) | |
| Caradoc | USA (Virginia) | C. typica (37904) | |
| Turinian | USA (Tennessee) | C. ovata (227641) |