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Eucycloidea
Taxonomy
Eucycloidea was named by Hudleston (1887) [Sepkoski's age data: J Bajo-l J Call Sepkoski's reference number: 661]. It is not extant.
It was reranked as Purpurina (Eucycloidea) by Pan (1977).
It was assigned to Purpurina by Pan (1977); to Neotaenioglossa by Sepkoski (2002); and to Eucyclidae by Bandel (2010).
It was reranked as Purpurina (Eucycloidea) by Pan (1977).
It was assigned to Purpurina by Pan (1977); to Neotaenioglossa by Sepkoski (2002); and to Eucyclidae by Bandel (2010).
Subtaxa
Species lacking formal opinion data
Synonymy list
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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. †Eucycloidea Hudleston 1887
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†Eucycloidea madagascariensis Bandel 2010
†Eucycloidea tenuistria Munster 1844
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Invalid names: Rostellaria nodosa Munster 1844 [synonym], Trochus sedgwicki Munster 1844 [synonym], Trochus subangulatus Munster 1844 [synonym]
†Purpurina (Eucycloidea) orientalis Pan 1977
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 4.59 | 3.11 | 6.50 | 4.70 | 1.39 |
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| Source: superf = superfamily, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Concavum to the top of the Middle Jurassic or 175.60000 to 161.50000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Jurassic - Middle Jurassic | Madagascar | E. madagascariensis (137441) | |
| Toarcian | United Kingdom | E. sp. (118020) | |
| Concavum | Morocco | E. etheridgii (97935) | |
| Bajocian | Morocco | E. etheridgii (97903 97939) E. subangulata (97940) E. subangulata, E. etheridgii (97936 97937 97941) | |
| Bajocian - Bathonian | China (Yunnan) | Purpurina orientalis (165451) | |
| Early/Lower Bathonian - Middle Bathonian | Germany | E. verrucosa (58311 58319) | |
| Early/Lower Callovian | Germany | E. granulata (58213) |