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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) and Lehmann (1957); to Encrinasterinae by Harper and Morris (1978); to Oegophiurida by Sepkoski (2002); and to Encrinasteridae by Owen (1965), Spencer and Wright (1966) and Dean Shackleton (2005).
It was synonymized subjectively with Encrinaster by Jell and Theron (1999).
It was assigned to Euzonosomatidae by Spencer (1930) and Lehmann (1957); to Encrinasterinae by Harper and Morris (1978); to Oegophiurida by Sepkoski (2002); and to Encrinasteridae by Owen (1965), Spencer and Wright (1966) and Dean Shackleton (2005).
Species
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. |