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Cyclospira perplexa
Taxonomy
Protozyga perplexa was named by Williams (1962). It is a 3D body fossil.
It was recombined as Cyclospira perplexa by Candela and Harper (2014).
It was recombined as Cyclospira perplexa by Candela and Harper (2014).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Protozyga perplexa Williams p. 246 figs. PI. XXV, figs. 54, 55, 61, 62 |
| 2014 | Cyclospira perplexa Candela and Harper pp. Supplement 1 |
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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.
†Cyclospira perplexa Williams 1962
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Unequally biconvex, subcircular and sulcate Protozyga with a brachial valve almost as long as wide and about one-eighth as deep as long, bearing a prominent median sulcus, originating near the umbo and curving anteriorly towards a slightly carinate pedicle valve about two-fifths as deep as long; ventral interior with long, subparallel dental lamellae; dorsal median septum not ankylosed with hingeplate but strongly developed and almost two-thirds as long as the brachial valve. |