| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Glottoceras attenuatum
Taxonomy
Glottoceras attenuatum was named by Hyatt (1875). It is not extant.
It was recombined as Knemiceras attenuatum by Benavides-Caceres (1956).
It was recombined as Knemiceras attenuatum by Benavides-Caceres (1956).
Synonymy list
| Year | Name and author |
|---|---|
| 1875 | Glottoceras attenuatum Hyatt |
| 1956 | Knemiceras attenuatum Benavides-Caceres p. 449 figs. Pl 46, figs 7-10 |
| 2002 | Glottoceras attenuatum Robert |
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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.
†Glottoceras attenuatum Hyatt 1875
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 28.7 | 24.0 | 36.5 | 27.5 | 4.64 | |
| shell diameter | 5 | 53.9 | 48.0 | 63.0 | 52.0 | 5.64 | |
| shell inflation | 5 | 6.59 | 6.00 | 7.00 | 6.50 | 0.418 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Early/Lower Albian to the top of the Middle Albian or 113.20000 to 106.30000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | Peru (Cajamarca) | Knemiceras attenuatum (88170) | |
| Albian | Peru | Knemiceras attenuatum (88673) | |
| Albian | Peru (Cajamarca) | Knemiceras attenuatum (56984 56987) | |
| Middle Albian | Peru | Knemiceras attenuatum (88190 158987 158988) |