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Ammodiscus incertus
Taxonomy
Operculina incerta was named by d'Orbigny (1839). It is a 3D body fossil.
It was recombined as Trochammina incerta by Parker et al. (1869); it was recombined as Ammodiscus incertus by Chapman (1895).
It was recombined as Trochammina incerta by Parker et al. (1869); it was recombined as Ammodiscus incertus by Chapman (1895).
Sister species lacking formal opinion data
A. annularis, A. annulinoides, A. bradynus, A. cretaceous, A. gaultinus, A. giganteus, A. glabratus, A. grandis, A. gualtinus, A. hashimotoi, A. incognitus, A. infimus, A. jasper, A. longexsertus, A. mackenziensis, A. multicinctus, A. nitidus, A. nuceus, A. oonahensis, A. peruvianus, A. planus, A. roessleri, A. semiconstrictus, A. septentrionalis, A. siliceus, A. tenuissimus, A. turbulensis, A. veteranus
Synonymy list
| Year | Name and author |
|---|---|
| 1839 | Operculina incerta d'Orbigny |
| 1869 | Trochammina incerta Parker et al. |
| 1895 | Ammodiscus incertus Chapman p. 316 |
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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.
†Ammodiscus incertus d'Orbigny 1839
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| References: Loeblich and Tappan 1988, Kiessling 2004, Loeblich and Tappan 1984 | |||||
Age range: base of the Brigantian to the top of the Late/Upper Oligocene or 335.90000 to 23.04000 Ma
Collections (41 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Brigantian | United Kingdom (England) | Ammodiscus incertus (73394 73399 73420 73429) | |
| Pendleian | United Kingdom (England) | Ammodiscus incertus (73467) | |
| Pennsylvanian | USA (Texas) | Ammodiscus incertus (217080) | |
| Early/Lower Triassic | Slovenia | Ammodiscus incertus (44520) | |
| Ladinian | Italy | Ammodiscus incertus (50964 50970) | |
| Carnian | Italy | Ammodiscus incertus (50986 50987) | |
| Rhaetian | Papua New Guinea | Ammodiscus incertus (67687) | |
| Rhaetian | United Kingdom (England) | Ammodiscus incertus (200948) | |
| Hettangian | Germany | Ammodiscus incertus (33512 33522 33523 33524) | |
| Hettangian - Sinemurian | Austria | Ammodiscus incertus (38056 38057 38058 38059) | |
| Sinemurian | Germany | Ammodiscus incertus (33516 33517) | |
| Pliensbachian | Germany | Ammodiscus incertus (33513 33518 33519 33520) | |
| Late/Upper Aptian | Mexico (Baja California) | Ammodiscus incertus (1891) | |
| Early/Lower Eocene - Middle Eocene | Taiwan (N/A) | Ammodiscus incertus (208362 208528 208534 208537) | |
| Late/Upper Oligocene | Taiwan (N/A) | Ammodiscus incertus (208541 208542 208550 208553 208555 208556 208557 208558 208559) |