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Marginura hilleri
Taxonomy
Marginura hilleri was named by Jell and Theron (1999). It is not extant. Its type specimen is Holotype B4566. Its type locality is Additional Bokkeveld Group Echinoderms, South Africa, which is in an Emsian/Eifelian marine mudstone/sandstone in South Africa.
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Marginura hilleri Jell and Theron pp. 172-174 figs. figs. 44, 45 |
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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.
†Marginura hilleri Jell and Theron 1999
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. A. Jell and J. N. Theron 1999 | Disc surface of mosaic of polygonal plates; disc plates larger and subquadrate near the margin, much smaller, less regular and bearing strong circular tubercles proximally. Adambulacrals with club-shaped abradial expansion, with L-shaped ridge running along proximal and then abradial margins. Ambulacral 2 extending dorsally over 3rd and 4th and with pointed distal extremity (not truncated). Abradial spatulate spines on arms apparently continuing along interradial disc margin. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Emsian - Eifelian | South Africa | Marginura hilleri (type locality: 39146) |