| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Microptychis pygmaea
Taxonomy
Microptychis pygmaea was named by Longstaff (1933). It is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Microptychis pygmaea Longstaff p. 111 figs. pl. 12 f. 1-3a |
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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.
†Microptychis pygmaea Longstaff 1933
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. D. Longstaff 1933 | Shell composed of about eleven whorls. Protoconch small, apex convex and raised; the three or four whorls immediately succeeding increase more rapidly than the later ones, which form an elongated slender spire. Adpression narrow and granulated, fine spirals on all the whorls crossed by slightly curved threads. Base flattened convex, not much produced. Aperture short, ovate. |
Measurements
No measurements are available
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| Source: f = family | |||||
| References: Wagner 2023, Kiessling 2004 | |||||
Age range: Brigantian or 335.90000 to 330.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Brigantian | United Kingdom (Scotland) | Microptychis pygmaea (155580) |