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Grammoceras striatulum
Taxonomy
Ammonites striatulus was named by Sowerby (1825). It is a 3D body fossil. Its type locality is St. Cassian (Munster coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.
It was recombined as Grammoceras striatulum by Galácz et al. (2010).
It was recombined as Grammoceras striatulum by Galácz et al. (2010).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1825 | Ammonites striatulus Sowerby p. 23 figs. Pl 421, fig 1 |
| 2010 | Grammoceras striatulum Galácz et al. p. 330 figs. Pl 2, figs 4,5 |
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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.
†Grammoceras striatulum Sowerby 1825
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| diameter | 1 | 80.8 | |||||
| inflation | 1 | 38.4 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Thouarsense or 180.10000 to 175.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Toarcian | France | Grammoceras striatulum (210861 210878) | |
| Thouarsense | Germany | Grammoceras striatulum (59415) | |
| Thouarsense | Hungary | Grammoceras striatulum (147229) |