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Crassicyclus
Taxonomy
Crassicyclus was named by Soto (1978) [Sepkoski's age data: D Give].
It was assigned to Hadrophyllidae by Soto (1978); and to Rugosa by Sepkoski (2002).
It was assigned to Hadrophyllidae by Soto (1978); and to Rugosa by Sepkoski (2002).
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by P. Wagner on 2022-11-03
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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. †Crassicyclus Soto 1978
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Late/Upper Givetian to the top of the Early/Lower Frasnian or 383.40000 to 379.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Givetian - Early/Lower Frasnian | Spain (Leon) | C. densiseptatus (26849) |