| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Aspidaster
Taxonomy
Aspidaster was named by de Loriol (1884) [Sepkoski's age data: J Bath T Dani]. It is not extant. Its type is Aspidaster delgadoi. It was considered monophyletic by Villier et al. (2004).
It was assigned to Valvatida by Sepkoski (2002); and to Stauranderasteridae by Spencer and Wright (1966), Villier et al. (2004) and Villier (2010).
It was assigned to Valvatida by Sepkoski (2002); and to Stauranderasteridae by Spencer and Wright (1966), Villier et al. (2004) and Villier (2010).
Species
A. delgadoi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Aspidaster de Loriol |
| 1966 | Aspidaster Spencer and Wright p. 55 |
| 2002 | Aspidaster Sepkoski |
| 2004 | Aspidaster Villier et al. p. 40 |
| 2010 | Aspidaster Villier p. 706 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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 | |
|---|---|---|
| L. Villier et al. 2004 | External face with large deeply impressed granule pits, digging into a raised central area and a depressed margin. Articulatory processes kidney-shape in external view. No pedicellariae pits identified. Arms elongate with parallel sides. Superomarginal and abactinal plates differentiated. Passageway for the papullae visible at plate corners. A single row of abactinals in the arms. Primary circlet plates enlarged. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Maastrichtian or 130.00000 to 66.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Barremian | France (Drôme) | A. sp. (75576 177726) | |
| Late/Upper Coniacian - Early/Lower Santonian | France | A. sp. (59659) | |
| Late/Upper Campanian | Belgium (Liege) | A. sp. (32147) | |
| Early/Lower Maastrichtian | France (Landes) | A. sp. (214190) | |
| Late/Upper Maastrichtian - Danian | Netherlands (Limburg) | A. sp. (32166) |