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Hyboclypus
Taxonomy
Hyboclypus was named by Agassiz (1839) [Sepkoski's age data: J Aale J Kimm].
It was assigned to Galeropygidae by Kier (1962), Jesionek-Szymanska (1963) and Kier (1966); to Disasteroida by Sepkoski (2002); to Atelostomata by Barras (2007); and to Microstomata by Kroh and Smith (2010).
It was assigned to Galeropygidae by Kier (1962), Jesionek-Szymanska (1963) and Kier (1966); to Disasteroida by Sepkoski (2002); to Atelostomata by Barras (2007); and to Microstomata by Kroh and Smith (2010).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Hyboclypus Agassiz p. 75 |
| 1962 | Hyboclypus Kier p. 27 |
| 1963 | Hyboclypus Jesionek-Szymanska p. 330 |
| 1966 | Hyboclypus Kier p. U499 |
| 2002 | Hyboclypus Sepkoski |
| 2007 | Hyboclypus Barras p. 152 |
| 2010 | Hyboclypus Kroh and Smith p. 171 |
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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 | |
|---|---|---|
| C. G. Barras 2007 | Stem group Atelostomata with an adjunct apical disc. The disc contains no more than six complemental plates and oculars II and IValways share a direct contact. The genus retains the primitive characters of a vertically sided periproctal groove (Pl. 1, fig. 4a), oral pore pairs crowded into phyllodes (Fig. 10B) and a peristomial well (Pl. 1, fig. 4c). |