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Radiasteridae
Taxonomy
Radiasteridae was named by Fisher (1916). It is extant. It was considered monophyletic by Mah and Blake (2012).
It was assigned to Granulosina by Spencer and Wright (1966); to Paxillosida by Gale (2011); and to Paxillosida by Fisher (1916), Blake and Jagt (2005), Mah and Blake (2012) and Blake et al. (2018).
It was assigned to Granulosina by Spencer and Wright (1966); to Paxillosida by Gale (2011); and to Paxillosida by Fisher (1916), Blake and Jagt (2005), Mah and Blake (2012) and Blake et al. (2018).
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Radiasteridae Fisher p. 4 |
| 1966 | Radiasteridae Spencer and Wright p. U64 |
| 2005 | Radiasteridae Blake and Jagt p. 187 |
| 2011 | Radiasteridae Gale p. 57 |
| 2012 | Radiasteridae Mah and Blake p. 3 |
| 2018 | Radiasteridae Blake et al. p. 199 |
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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, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Age range
Maximum range based only on fossils: Late/Upper Bathonian or 167.70000 to 164.70000 Ma
Minimum age of oldest fossil (stem group age): 164.7 Ma
Minimum age of oldest fossil (stem group age): 164.7 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bathonian | India | Indiaster krishna (72017) |