| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Arrhaphoceras (Arrhaphoceras) subtetragonum
Taxonomy
Arrhaphoceras subtetragonum was named by Spath (1928).
It was recombined as Arrhaphoceras (Arrhaphoceras) subtetragonum by Kennedy et al. (2008).
It was recombined as Arrhaphoceras (Arrhaphoceras) subtetragonum by Kennedy et al. (2008).
Synonymy list
| Year | Name and author |
|---|---|
| 1928 | Arrhaphoceras subtetragonum Spath p. 253 |
| 2008 | Arrhaphoceras (Arrhaphoceras) subtetragonum Kennedy et al. p. 124 figs. Pl 1, figs 1-22 |
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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.
†Arrhaphoceras (Arrhaphoceras) subtetragonum Spath 1928
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 13.2 | 7.80 | 20.7 | 13.7 | 5.32 | |
| shell diameter | 6 | 26.5 | 16.4 | 42.0 | 26.5 | 11.8 | |
| shell inflation | 6 | 6.25 | 3.40 | 11.8 | 6.55 | 4.08 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Albian or 105.30000 to 99.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | Kazakhstan | Arrhaphoceras subtetragonum (175008) |