| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ceramaster rabii
Taxonomy
Goniaster (Goniodiscus) rabii was named by von Linstow (1909). It is not extant. Its type specimen is Geowissenschaftliche Sammlungen der Bundesanstalt für Geowissenschaften und Rohstoffe, Berlin-Spandau.
It was recombined as Ceramaster rabii by Rasmussen (1972).
It was recombined as Ceramaster rabii by Rasmussen (1972).
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Goniaster (Goniodiscus) rabii von Linstow pp. 47-52 figs. pl. 2, fig. 1-4 |
| 1972 | Ceramaster rabii Rasmussen p. 56 |
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.
†Ceramaster rabii von Linstow 1909
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. W. Rasmussen 1972 | The marginals are slightly wedge-shaped, almost rectangular. Superomarginals are placed immediately above the inferomarginals. The angle between the two margins of the disc partly preserved in the type indicates the the outline has been slightly stellate, almost pentagonal, and the marginal preserved in the specimen are presumably number 1-2 or 2-3 from the interradius. The tip of the arm is not preserved, but the almost uniform marginals indicate a structure as in Ceramaster with equal number of superomarginals and inferomarginals. The length of the marginals is considerably smaller than their width. The contact between superomarginals and inferomarginals are not perpendicular to the disc. The joint faces between marginals are smooth and flat. The free surface is arched but apparently not tumid. The surface is covered with large, scattered spine pits and rather narrow, slightly irregular margin of considerably smaller, closely placed spine pits. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Blake 1990 | |||||
Collections
No collection or age range data are available