| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Fredaster
Taxonomy
Fredaster was named by Breton and Néraudeau (2008). Its type is Metopaster guyaderi.
It was assigned to Goniasteridae by Breton and Néraudeau (2008).
It was assigned to Goniasteridae by Breton and Néraudeau (2008).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Fredaster Breton and Néraudeau p. 232 |
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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
| Reference | Diagnosis | |
|---|---|---|
| G. Breton and D. Néraudeau 2008 | Small taxon. Disc with straight sides. Superomarginal of the disc wider than long, with a very convex profile. Inferomarginal plates of small size and less wide, less convex than the superomarginals. External face with an ornament of deep pits arranged with tubercles. Pedicellariae-pits elongate. Margin of the extenal face depressed, occasionally pited. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Blake 1990, Aberhan 1992 | |||||
Age range: Late/Upper Cenomanian or 99.60000 to 93.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | France | Metopaster guyaderi (59815) | |
| Late/Upper Cenomanian | France | Metopaster guyaderi (59806 59808) |