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Knemiceras lanceolatum
Taxonomy
Knemiceras lanceolatum was named by Latil and Jaillard (2023). Its type specimen is UJF-ID.15127, a shell, and it is a mold. Its type locality is BOA.6, Bir Oum Ali North, which is in an Albian carbonate limestone in the Zebbag Formation of Tunisia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Knemiceras lanceolatum Latil and Jaillard p. 15 figs. 8C-G, 12A-F, 13A-E |
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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.
†Knemiceras lanceolatum Latil and Jaillard 2023
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 41.1 | 21.0 | 59.0 | 45.5 | 12.5 | |
| shell diameter | 6 | 76.3 | 39.0 | 104.0 | 85.5 | 22.3 | |
| shell inflation | 6 | 7.89 | 4.50 | 10.0 | 8.75 | 2.11 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Early/Lower Albian or 112.03000 to 109.00000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | Tunisia | Knemiceras lanceolatum (232795 232797 232798 232799 232803 232804 type locality: 232805) |