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Euzonosoma
Taxonomy
Euzonosoma was named by Spencer (1930) [Sepkoski's age data: O u C Tour Sepkoski's reference number: 2]. It is not extant. Its type is Euzonosoma orbitoides. It is the type genus of Euzonosomatidae. It was considered monophyletic by Dean Shackleton (2005).
It was synonymized subjectively with Encrinaster by Jell and Theron (1999).
It was assigned to Euzonosomatidae by Spencer (1930), Lehmann (1957); to Encrinasterinae by Harper and Morris (1978); to Oegophiurida by Sepkoski (2002); and to Encrinasteridae by Owen (1965), Spencer and Wright (1966), Dean Shackleton (2005).
It was synonymized subjectively with Encrinaster by Jell and Theron (1999).
It was assigned to Euzonosomatidae by Spencer (1930), Lehmann (1957); to Encrinasterinae by Harper and Morris (1978); to Oegophiurida by Sepkoski (2002); and to Encrinasteridae by Owen (1965), Spencer and Wright (1966), Dean Shackleton (2005).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Euzonosoma Spencer |
| 1957 | Euzonosoma Lehmann pp. 24-25 |
| 1965 | Euzonosoma Owen p. 552 |
| 1966 | Euzonosoma Spencer and Wright p. U86 |
| 1978 | Euzonosoma Harper and Morris p. 156 |
| 2002 | Euzonosoma Sepkoski |
| 2005 | Euzonosoma Dean Shackleton p. 83 |
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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. †Euzonosoma Spencer 1930
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†Euzonosoma goldfussi Schöndorf 1910
†Euzonosoma montanum Raymond 1912
†Euzonosoma orbitoides Spencer 1930
†Euzonosoma pusillum Ruedemann 1916
†Euzonosoma schmidti Schöndorf 1910
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Dean Shackleton 2005 | Broad groove crossing oral ambulacral transverse bar; loss of aboral plating; loss of aboral plate spines. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Age range: base of the Rawtheyan to the top of the Early/Lower Emsian or 448.80000 to 399.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rawtheyan | United Kingdom (Scotland) | E. orbitoides (73134) | |
| Early/Lower Emsian | Germany | E. tischbeiniana (26904) |