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Spinopriscopedatus
Taxonomy
Spinopriscopedatus was named by Kozur and Sadeddin (1990) [Sepkoski's age data: J Bajo K Albi Sepkoski's reference number: 924]. It is not extant. It is considered to be a form taxon.
It was assigned to Dendrochirotida by Sepkoski (2002); and to Priscopedatidae by Kozur and Sadeddin (1990) and Al-Tamimi and Saqqa (2008).
It was assigned to Dendrochirotida by Sepkoski (2002); and to Priscopedatidae by Kozur and Sadeddin (1990) and Al-Tamimi and Saqqa (2008).
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1990 | Spinopriscopedatus Kozur and Sadeddin p. 357 |
2002 | Spinopriscopedatus Sepkoski |
2008 | Spinopriscopedatus Al-Tamimi and Saqqa p. 89 |
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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. †Spinopriscopedatus Kozur and Sadeddin 1990
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†Spinopriscopedatus magnispinosus Kozur and Sadeddin 1990
†Spinopriscopedatus quadratus Kozur and Sadeddin 1990
†Spinopriscopedatus salhoubensis Al-Tamimi and Saqqa 2008
†Spinopriscopedatus subtriangularis Kozur and Sadeddin 1990
†Spinopriscopedatus unispinosus Kozur and Sadeddin 1990
Diagnosis
Reference | Diagnosis | |
---|---|---|
H. Kozur and W. Sadeddin 1990 | Sieve-plates each with large central pore that is largely or totally covered by a robust conical stirrup with 4 feet. Between 2 and 13 small pores surround the central pore, but in some specimens these pores are quite missing. The outline of the sclerites is variable: triangular, cross-shaped, irregularly rectangular, pentagonal or quite irregular. Three to eight mostly long marginal spines are present. In very rare forms with strongly lobate outline only 1-2 spines can be observed |