| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Riasanospongia
Taxonomy
Riasanospongia was named by Gerasimov (1960) [Sepkoski's age data: K Barr Sepkoski's reference number: 643]. It is not extant. Its type is Riasanospongia michailovensis.
It was assigned to Demospongia by Sepkoski (2002).
It was assigned to Demospongia by Sepkoski (2002).
Species
R. michailovensis (type species)
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| References: Whittington et al. 1997, Kiessling 2004 | |||||
Age range: Berriasian or 145.00000 to 139.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian | Russian Federation (Ryazan) | R. michailovensis (116453) |