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Risselloidea
Taxonomy
Risselloidea was named by Cossmann (1909) [Sepkoski's age data: Tr Anis K Nc Sepkoski's reference number: 1130].
It was assigned to Archaeogastropoda by Sepkoski (2002); to Eucyclinae by Szabo (2008); and to Trochidae by Das (2008).
It was assigned to Archaeogastropoda by Sepkoski (2002); to Eucyclinae by Szabo (2008); and to Trochidae by Das (2008).
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by P. Wagner on 2017-09-08
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. †Risselloidea Cossmann 1909
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Early/Lower Callovian or 165.30000 to 161.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Callovian | India | R. tagorei (67608) |