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Oyenaster oblidus
Taxonomy
Oyenaster oblidus was named by Blake and Portell (2009). Its type specimen is Holotype UF 50000a, a partial skeleton, and it is a 3D body fossil. Its type locality is Dickerson Limerock mines, Haile complex, Alachua County, which is in an Eocene deep subtidal packstone in the Ocala Limestone Formation of Florida. It is the type species of Oyenaster.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Oyenaster oblidus Blake and Portell pp. 565-569 figs. Figs. 3.1–3.6, 4 |
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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.
†Oyenaster oblidus Blake and Portell 2009
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and R. W. Portell 2009 | Overall form and ossicular form robust; arms broad, short, triangular; abactinals probably reaching terminal. Spines, enlarged accessory bases, pedicellariae absent from all ossicular systems. Marginals robust; interbrachial ossicles wide, outer face transverse profile weakly positively arched medially, curving abruptly at abradial margin to form a shallow grove or furrow zone along marginal series contact. Marginal outer surfaces covered by uniform, densely spaced small accessory depressions. First actinal series ossicles adjacent to adambulacrals somewhat irregular in outline. Adambulacrals slightly wider than long. Furrow margin spines probably aligned in a straight, longitudinal series (i.e., not an angular series on each ossicle). |