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Ryderia
Taxonomy
Ryderia was named by Wilton (1930) [Sepkoski's age data: J Hett-l J Plie-u Sepkoski's reference number: 93,715]. Its type is Leda renevieri.
It was reranked as Nuculana (Ryderia) by Melville (1956).
It was assigned to Nuculana by Melville (1956); to Nuculanidae by Vokes (1980); to Nuculoida by Sepkoski (2002); to Polidevciinae by Yin and McRoberts (2006); and to Polidevciidae by Ros-Franch et al. (2014).
It was reranked as Nuculana (Ryderia) by Melville (1956).
It was assigned to Nuculana by Melville (1956); to Nuculanidae by Vokes (1980); to Nuculoida by Sepkoski (2002); to Polidevciinae by Yin and McRoberts (2006); and to Polidevciidae by Ros-Franch et al. (2014).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Ryderia Wilton p. 7 |
| 1956 | Nuculana (Ryderia) Melville |
| 1977 | Teinonuculana Zhang |
| 1980 | Ryderia Vokes p. 7 |
| 1983 | Teinonuculana Chen et al. p. 620 |
| 2002 | Ryderia Sepkoski |
| 2006 | Ryderia Yin and McRoberts p. 106 |
| 2014 | Ryderia Ros-Franch et al. |
| 2017 | Teinonuculana Ayoub-Hannaa et al. p. 435 |
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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. †Ryderia Wilton 1930
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†Ryderia doris d'Orbigny 1849
†Ryderia guangdongensis Zhang 1977
Invalid names: Teinonuculana Zhang 1977 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 8.75 | 7.50 | 10.2 | 8.85 | 1.91 | |
| valve height | 6 | 7.71 | 5.90 | 9.10 | 7.85 | 1.24 |
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| Source: superf = superfamily, c = class | |||||
| References: Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Jurassic to the top of the Middle Jurassic or 201.40000 to 161.50000 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian | United Kingdom (Somerset) | R. titei (62956) | |
| Rhaetian | United Kingdom | R. sp. (78454 78459 78472) | |
| Rhaetian | China (Tibet) | R. guangdongensis (75199) | |
| Early/Lower Jurassic | China (Guangdong) | Teinonuculana guangdongensis (200826) | |
| Hettangian | Denmark | R. doris (142009 142011 142012) | |
| Planorbis | China (Tibet) | R. guangdongensis (73904) | |
| Sinemurian | China (Guangdong) | Teinonuculana tenuistriata (150392) | |
| Bucklandi - Semicostatum | China (Guangdong) | Teinonuculana graphica (150394) | |
| Early/Lower Sinemurian | Denmark | R. doris (142068) R. sp. (142069) R. sp., R. doris (142067) | |
| Late/Upper Sinemurian | Denmark | R. doris (142073) R. sp. (142074) R. sp., R. doris (142071 142072) | |
| Late/Upper Sinemurian | United Kingdom (Gloucestershire) | Nuculana graphica (204130) Nuculana sp. (204131) | |
| Oxynotum | United Kingdom (Somerset) | R. doris (159469 159471 159473) | |
| Pliensbachian | United Kingdom | R. graphica (213634) | |
| Pliensbachian | Portugal (Coimbra) | R. doris (225384) | |
| Pliensbachian | United Kingdom (Gloucestershire) | Nuculana graphica (204124 204126) Nuculana sp. (204122) | |
| Early/Lower Pliensbachian | Denmark | R. doris (142077) | |
| Late/Upper Pliensbachian | Canada (British Columbia) | R. sp. (53104) | |
| Late/Upper Pliensbachian | Germany (North Rhine-Westphalia) | R. doris (225401) R. texturata, R. doris (225394) | |
| Late/Upper Pliensbachian | France | R. doris (227111 227112) | |
| Late/Upper Pliensbachian | Germany (Bavaria) | R. doris (224862) | |
| Spinatum | Germany | R. doris (126569 159446 228498) | |
| Middle Jurassic | United Kingdom (Gloucestershire) | Nuculana sp. (204104) |