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Exelissa
Taxonomy
Exelissa was named by Piette (1860) [Sepkoski's age data: J Hett K Barr]. It is the type genus of Exelissinae.
It was assigned to Procerithiidae by Gründel and Parent (2001); to Neotaenioglossa by Sepkoski (2002); to Cerithiadae by Kaim (2004); to Exelissinae by Guzhov (2004); and to Cryptaulacidae by Cataldo (2017).
It was assigned to Procerithiidae by Gründel and Parent (2001); to Neotaenioglossa by Sepkoski (2002); to Cerithiadae by Kaim (2004); to Exelissinae by Guzhov (2004); and to Cryptaulacidae by Cataldo (2017).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Exelissa Piette |
| 2001 | Exelissa Gründel and Parent p. 15 |
| 2002 | Exlessia Sepkoski |
| 2004 | Exelissa Guzhov p. S501 |
| 2004 | Exelissa Kaim p. 46 |
| 2017 | Exelissa Cataldo p. 415 |
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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. †Exelissa Piette 1860
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Subg. †Exelissa (Teliochilus) Cossmann 1906
†Exelissa crassicostata Cataldo 2017
†Exelissa distans Cossmann 1913
†Exelissa solitudinis Douvillé 1916
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. V. Guzhov 2004 | Shell small or medium-sized, turriculate or, rarely, high-turriculate, with convex or straight generating line. Protoconch composed of one rounded and smooth whorl followed by three bicarinate whorls (subgenus Exelissa). Whorls flattened, nongradate. Suture shallow. Ornamentation composed of three primary ribs and several (0-3) secondary ribs. Spiral omamentation sometimes composed of rows of tubercles. Ribs crossed by folds, which constitute from four to nine axial rows. Folds prominent and coarse, carinate, forming tubercles originating at intersections with ribs. Last whorl narrowed and rounded, with tendency toward vermiform shape. Shell base high, cup-shaped, with numerous ribs and ends of folds. Aperture circular or oval. |