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Isocyprina (Eotrapezium)
Taxonomy
Eotrapezium was named by Douvillé (1912) [Sepkoski's age data: Tr Rhae J l].
It was reranked as Isocyprina (Eotrapezium) by Marquez-Aliaga et al. (2010).
It was assigned to Arcticidae by Vokes (1980); to Veneroida by Sepkoski (2002); and to Isocyprina by Marquez-Aliaga et al. (2010).
It was reranked as Isocyprina (Eotrapezium) by Marquez-Aliaga et al. (2010).
It was assigned to Arcticidae by Vokes (1980); to Veneroida by Sepkoski (2002); and to Isocyprina by Marquez-Aliaga et al. (2010).
Subtaxa
Species lacking formal opinion data
Eotrapezium africanum, Eotrapezium kenti, Eotrapezium occidentale, Eotrapezium thompsoni, Isocyprina argillacea, Isocyprina cyrcuiformis, Isocyprina cyreniformis, Isocyprina dundriensis, Isocyprina germani, Isocyprina glabra, Isocyprina leckhamptonensis, Isocyprina percrassa, Isocyprina roederi, Isocyprina seebachi, Isocyprina simplex
Synonymy list
| Year | Name and author |
|---|---|
| 1912 | Eotrapezium Douvillé p. 455 |
| 1980 | Eotrapezium Vokes p. 157 |
| 2002 | Eotrapezium Sepkoski |
| 2010 | Isocyprina (Eotrapezium) Marquez-Aliaga et al. |
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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.
Subg. †Isocyprina (Eotrapezium) Douvillé 1912
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†Isocyprina (Eotrapezium) germari Dunker 1846
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Norian to the top of the Late/Upper Kimmeridgian or 228.00000 to 150.80000 Ma
Collections (75 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Norian | Peru | Eotrapezium occidentale (71780) | |
| Rhaetian | United Kingdom (Yorkshire) | Eotrapezium concentricum, Eotrapezium ewaldi (219458) Eotrapezium concentricum, Eotrapezium germani (219457) | |
| Rhaetian | United Kingdom (Somerset) | Isocyprina germari (62956) | |
| Rhaetian | Austria | Isocyprina alpina (27953 27956 27965 27976 27978 27984 27985 27988 27989 27991 28094 28096 28097 28498 28502 28510 28512 28517 28581 28586 28588 28590 28602 28604 28605 28607 28608 28799 28803 28805 28809 28810 28816 28820 28821 28822 28826 28828) | |
| Late/Upper Hettangian | Germany | Isocyprina sp. (28868) | |
| Planorbis | Spain (Castilla y Leon) | Isocyprina germari (78213) | |
| Planorbis | Spain | Isocyprina germari (114266 114283 114285 114547 114554 114555 114557 114558 114559 114560 114572 114575 114576) | |
| Sinemurian | France (Pays de la Loire) | Isocyprina sp. (200112) | |
| Early/Lower Sinemurian | Germany | Isocyprina sp. (28881 28890) | |
| Late/Upper Pliensbachian | Germany (North Rhine-Westphalia) | Eotrapezium cucullatum (225394 225396) | |
| Early/Lower Toarcian | United Kingdom | Eotrapezium cucculatum (213673 213693 213694 213695 213697) | |
| Toarcian | Kenya | Eotrapezium africanum, Eotrapezium thompsoni (36455) | |
| Toarcian - Bajocian | Svalbard and Jan Mayen | Eotrapezium sp. (212471) | |
| Bajocian | Tanzania | Eotrapezium kenti (36398) Eotrapezium sp. (36402) | |
| Bathonian | France | Eotrapezium cordiforme (38738 38740) | |
| Late/Upper Kimmeridgian | Portugal | Isocyprina eupheno (68234) Isocyprina recta (68233) |