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Hippoklosma
Taxonomy
Hippoklosma was named by Conway Morris and Chapman (1997) [Sepkoski's age data: Cm Boto-l].
It was assigned to Hyolithelminthes by Sepkoski (2002); and to Mobergellidae by Conway Morris and Chapman (1997) and Skovsted (2003).
It was assigned to Hyolithelminthes by Sepkoski (2002); and to Mobergellidae by Conway Morris and Chapman (1997) and Skovsted (2003).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Hippoklosma Conway Morris and Chapman p. 971 |
| 2002 | Hippoklosma Sepkoski |
| 2003 | Hippoklosma Skovsted p. 435 |
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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. †Hippoklosma Conway Morris and Chapman 1997
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†Hippoklosma mongolica Missarzhevsky 1989
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Conway Morris and A. J. Chapman 1997 | Bilaterally symmetrical shell, thin, concavo-convex but may have upturned rim, phosphatic. Small apex with transverse furrows imparting segmentation. Shell bears fibroplacodes, arranged in ten rows (five pairs). Each fibroplacode consisting of a subcircular area housing fibrous body, capped by smooth disk. |