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Barremites hemiptychus
Taxonomy
Desmoceras difficile hemiptycha was named by Kilian (1889). It is a 3D body fossil.
It was recombined as Desmoceras hemiptychum by Douvillé (1916); it was recombined as Barremitites hemiptychum by Vermeulen et al. (2010); it was recombined as Barremites hemiptychus by Benzaggagh (2025).
It was recombined as Desmoceras hemiptychum by Douvillé (1916); it was recombined as Barremitites hemiptychum by Vermeulen et al. (2010); it was recombined as Barremites hemiptychus by Benzaggagh (2025).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1889 | Desmoceras difficile hemiptycha Kilian |
| 1916 | Desmoceras hemiptychum Douvillé p. 106 figs. Pl. 12, Fig. 7 |
| 2010 | Barremitites hemiptychum Vermeulen et al. pp. 22 - 23 |
| 2025 | Barremites hemiptychus Benzaggagh p. 10 figs. 7N-T |
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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.
†Barremites hemiptychus Kilian 1889
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 14.1 | 13.0 | 17.0 | 14.0 | 1.64 | |
| shell diameter | 5 | 26.2 | 23.0 | 32.0 | 25.0 | 3.65 | |
| shell inflation | 5 | 4.33 | 3.00 | 5.00 | 4.50 | 0.822 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Barremian or 125.77000 to 121.40000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Barremian | Morocco | Barremites hemiptychus (82170 82171 240071) | |
| Barremian | Czechia | Barremites hemiptychus (2121) | |
| Early/Lower Barremian | Morocco | Barremites hemiptychus (240072 240074 240075) | |
| Late/Upper Barremian | Morocco | Barremites hemiptychus (240070 240076) |