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Alabushevothyris
Taxonomy
Alabushevothyris was named by Smirnova (1994). It is not extant.
It was assigned to Terebratulida by Sepkoski (2002); and to Alabushevothyrididae by Smirnova (1994) and Williams et al. (2006).
It was assigned to Terebratulida by Sepkoski (2002); and to Alabushevothyrididae by Smirnova (1994) and Williams et al. (2006).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1994 | Alabushevothyris Smirnova pp. 48-50 |
2002 | Alabusherothyris Sepkoski |
2006 | Alabushevothyris Williams et al. p. 2120 |
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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.
Diagnosis
Reference | Diagnosis | |
---|---|---|
T. N. Smirnova 1994 | Shells fairly flat or moderately convex, usuallly nonplicate, with fairly straight beak and high false area. Dental lamellae massive and divergent. Umbonal cavities sometimes partly filled with additional calcareous material. Cardinal process tripartite, with double columnar separation of muscle striation. Brachidial loop spinous, triangular, and with long flanges making up 2/3 length of loop |