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Helenostylina convexa
Taxonomy
Helenostylina convexa was named by Nützel and Kaim (2014). Its type specimen is NMS BOZ 5005, a shell, and it is a 3D body fossil. Its type locality is Sample A-surface, Settsass Scharte, which is in a Julian basinal (carbonate) marl in the Cassian Formation of Italy.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Helenostylina convexa Nützel and Kaim p. 418 figs. 7e-h |
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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.
†Helenostylina convexa Nützel and Kaim 2014
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 3.04 | 2.15 | 4.30 | 3.22 | 1.52 |
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Julian or 235.00000 to 232.00000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Julian | Italy (Belluno) | Helenostylina convexa (207475 207476 207477 207478) | |
| Julian | Italy | Helenostylina convexa (163815 163816 type locality: 163817 163818) |