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Hyalopecten
Taxonomy
Hyalopecten was named by Verrill (1897) [Sepkoski's age data: T Mi-l R]. It is extant.
It was synonymized subjectively with Ciclopecten by Coan et al. (2000).
It was assigned to Pterioida by Sepkoski (2002); to Pectininae by Spencer et al. (2004); and to Camptonectinae by Kamenev (2018), Marshall et al. (2025).
It was synonymized subjectively with Ciclopecten by Coan et al. (2000).
It was assigned to Pterioida by Sepkoski (2002); to Pectininae by Spencer et al. (2004); and to Camptonectinae by Kamenev (2018), Marshall et al. (2025).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Hyalopecten Verrill |
| 2002 | Hyalopecten Sepkoski |
| 2004 | Hyalopecten Spencer et al. |
| 2018 | Hyalopecten Kamenev p. 359 |
| 2025 | Hyalopecten Marshall et al. p. 138319 |
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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. Hyalopecten Verrill 1897
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. M. Kamenev 2018 | Shell up to 40 mm in height, oblique, thin, fragile, subequilateral, compressed to inflated, inequivalve, with left valve more convex than right. Valves with commarginal undulations or regular, lamellate ribs and radial ribs or riblets. Auricles unequal, posterior auricles often continuous with disc; anterior auricles distinct. Byssal notch rather deep; ctenolium present. |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Piacenzian or 3.60000 to 2.58000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Piacenzian | Italy (Emilia-Romagna) | H. similis (178117) |