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Ferganispira
Taxonomy
Ferganispira was named by Licharev (1967).
It was synonymized subjectively with Donaldospira by Pan (1997).
It was assigned to Murchisoniidae by Licharev (1967); to Orthonemidae by Mazaev (2002); and to Neilsoniinae by Batten (1995) and Wagner (2023).
It was synonymized subjectively with Donaldospira by Pan (1997).
It was assigned to Murchisoniidae by Licharev (1967); to Orthonemidae by Mazaev (2002); and to Neilsoniinae by Batten (1995) and Wagner (2023).
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. †Ferganispira Licharev 1967
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†Ferganispira acteonina Batten 1995
†Ferganispira gradussiformis Licharev 1967
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | High-spired pleurotomarians with a nearly vertical, relatively wide and concave selenizone located just under periphery and marked by upper selenizone margin. Shells slightly pupaeform with whorls embracing on base. Early whorls smooth with embryonic selenizone located midwhorl. Upper whorl surface flat to slightly concave with surface forming a 90˚ angle with axis. Shell periphery high on whorl and marked by upper selenizone margin. Selenizone relatively wide and concave with upper margin a more strongly developed spiral cord than lower. Outer whorl face nearly vertical, slightly |