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Rhopalocystis
Taxonomy
Rhopalocystis was named by Ubaghs (1963) [Sepkoski's age data: O Trem-u]. Its type is Rhopalocystis destombesi.
It was assigned to Rhopalocystidae by Sprinkle (1973); and to Gogiida by Sepkoski (2002).
It was assigned to Rhopalocystidae by Sprinkle (1973); and to Gogiida by Sepkoski (2002).
Species
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. †Rhopalocystis Ubaghs 1963
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†Rhopalocystis destombesi Ubaghs 1963
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Invalid names: Rhopalocystis dehirensis Chauvel and Régnault 1986 [synonym]
†Rhopalocystis fraga Chauvel 1971
†Rhopalocystis grandis Chauvel 1971
†Rhopalocystis havliceki Chauvel 1978
†Rhopalocystis mesonesensis Clausen 2004
†Rhopalocystis zagoraensis Chauvel 1971
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Invalid names: Rhopalocystis lehmani Chauvel 1978 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Sprinkle 1973 | Calyx conical to club-shaped, composed of numerous thick adjacent plates showing fairly good pentameral symmetry and bearing circular or slightly elliptical epispires on their margins. Single very thick basal plate at based of calyx. Domed oral surface consists of central mouth, lateral anal pyramid, and 5 relatively short ambulacra with single plates bearing long biserial brachioles. Long, slowly tapering stem with 1-piece columnals attached to base of calyx. Early Ordovician (Upper Tremadocian), Morocco. |