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Noviaster polyplax
Taxonomy
Noviaster polyplax was named by Hess (1972). Its type specimen is Naturhistorisches Museum Basel, Hess's collection Holotype A260 and is not a trace fossil. Its type locality is Echinoderms, Oberer Hauptrogenstein, Late Bajocian, Schinznach, Aargau, which is in a Bajocian open shallow subtidal grainstone/marl in Switzerland.
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Noviaster polyplax Hess pp. 11-14 figs. fig. 4-5; pl. 1, fig. 3-5; pl. 3, fig. 1 |
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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.
†Noviaster polyplax Hess 1972
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H Hess 1972 | Large species, with a large disc and relatively short, triangular arms. Interbrachial arc rounded. Actinolateral and abactinal fields tesselate. Carinal larger than the other abactinal plates. Marginal plates relatively small, squarish, with an external face covered with rounded granules. Lateral faces of the marginal flatened. Adambulacrals with four short conical spines. Pedicellariae unknown. |
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: Late/Upper Bajocian or 171.60000 to 167.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bajocian | Switzerland | Noviaster polyplax (type locality: 32036) |