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Cymostrophia (Protocymostrophia)
Taxonomy
Protocymostrophia was named as a genus. It is not extant.
It was reranked as Mesodouvillina (Protocymostrophia) by Savage (1981); it was reranked as Cymostrophia (Protocymostrophia) by Williams et al. (2000).
It was assigned to Mesodouvillina by Savage (1981); to Cymostrophia by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was reranked as Mesodouvillina (Protocymostrophia) by Savage (1981); it was reranked as Cymostrophia (Protocymostrophia) by Williams et al. (2000).
It was assigned to Mesodouvillina by Savage (1981); to Cymostrophia by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Mesodouvillina (Protocymostrophia) Savage |
| 2000 | Cymostrophia (Protocymostrophia) Williams et al. p. 268 |
| 2002 | Protocymostrophia Sepkoski |
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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.
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†Mesodouvillina (Protocymostrophia) costulata Barrande 1879
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Lochkovian to the top of the Early/Lower Emsian or 419.62000 to 399.50000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | Ukraine (Ternopil's'ka) | Cymostrophia costatula (170606) | |
| Lochkovian | Czechia | Protocymostrophia ivanensis (14119) | |
| Pragian | Canada (Yukon) | Cymostrophia costulata (25273) | |
| Pragian | USA (Alaska) | Mesodouvillina costatula (40581) | |
| Early/Lower Emsian | Australia (Queensland) | Mesodouvillina dickinsi (39874 39875 39876 39878 39879) | |
| Emsian | Australia (Queensland) | Mesodouvillina dickinsi (39880) | |
| Emsian | Australia (New South Wales) | Cymostrophia dickinsi (39884) |