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Spinoplasia roeni
Taxonomy
Spinoplasia roeni was named by Johnson (1970) [= ?"Spirifer" sp. cf. "S." modestus Merriam, 1963, p. 43; not Hall.]. Its type specimen is USNM 157252 and is a 3D body fossil. Its type locality is USNM 10713. South end of Ribbit Hill, north flank of Whiterock Canyon, which is in a Siegen carbonate limestone in the Rabbit Hill Limestone Formation of Nevada.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Spinoplasia roeni Johnson pp. 213 - 214 figs. Pl. 69, figs. 1-13 |
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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.
†Spinoplasia roeni Johnson 1970
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. G. Johnson 1970 | Spinoplasia lacking any form of plication and virtually without interarea. Ventral posterior thickened internally. |