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Spenceraster
Taxonomy
Spenceraster was named by Lambert (1914) [Sepkoski's age data: K Albi-u K Ceno-u]. It is not extant.
It was assigned to Goniasteridae by Lambert (1914) and Spencer and Wright (1966); and to Valvatida by Sepkoski (2002).
It was assigned to Goniasteridae by Lambert (1914) and Spencer and Wright (1966); and to Valvatida by Sepkoski (2002).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1913 | Trachyaster Spencer |
| 1914 | Spenceraster Lambert |
| 1966 | Spenceraster Spencer and Wright p. U62 |
| 2002 | Spenceraster Sepkoski |
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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. †Spenceraster Lambert 1914
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†Spenceraster rugosus Spencer 1907
Invalid names: Trachyaster Spencer 1913 [replaced]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Blake 1990 | |||||
Age range: base of the Late/Upper Cenomanian to the top of the Early/Lower Turonian or 99.60000 to 89.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | France (Poitou-Charentes) | S. rugosus (73862) | |
| Early/Lower Cenomanian | France | S. rugosus (59619 59658) | |
| Late/Upper Cenomanian | France | S. rugosus (59808) | |
| Early/Lower Turonian | United Kingdom (England) | Trachyaster rugosus (4071) |