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Hyolithus (Hyolithus) mutatus
Taxonomy
Hyolithus (Hyolithus) mutatus was named by Poulsen (1932).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1932 | Hyolithus (Hyolithus) mutatus Poulsen p. 23 figs. pl. 3: 12–17 |
| 2004 | Hyolithus (Hyolithus) mutatus Malinky and Skovsted p. 564 fig. 8E |
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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.
†Hyolithus (Hyolithus) mutatus Poulsen 1932
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. M. Malinky and C.B. Skovsted 2004 | Cyrtoconic conch with apical curvature toward dorsum; conch has narrow tapering appearance due to low apical angle; venter seemingly flat, grading into sharp lateral edges; flanks of dorsum inflated and rounded, intersecting to create rounded central ridge; ligula apparently short and rounded on anterior edge with gently dipping sides; cross−section triangular; shell on dorsum and venter with faint, closely spaced transverse lines; internal mould of dorsum with widely and irregularly spaced transverse rugae. |