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Calycoceras (Proeucalycoceras) guerangeri
Taxonomy
Metacalycoceras guerangeri was named by Spath (1926).
It was recombined as Calycoceras guerangeri by Hancock (1960); it was recombined as Calycoceras (Calycoceras) guerangeri by Thomel (1972); it was recombined as Calycoceras (Proeucalycoceras) guerangeri by Cobban et al. (1989), Kennedy (1994), Ahmad et al. (2013).
It was recombined as Calycoceras guerangeri by Hancock (1960); it was recombined as Calycoceras (Calycoceras) guerangeri by Thomel (1972); it was recombined as Calycoceras (Proeucalycoceras) guerangeri by Cobban et al. (1989), Kennedy (1994), Ahmad et al. (2013).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1926 | Metacalycoceras guerangeri Spath p. 431 |
| 1960 | Calycoceras guerangeri Hancock p. 251 |
| 1972 | Calycoceras (Calycoceras) guerangeri Thomel p. 61 figs. pl. 20, figs. 3, 4. |
| 1989 | Calycoceras (Proeucalycoceras) guerangeri Cobban et al. pp. 25 - 26 figs. 26, 72P-R, T, U |
| 1994 | Calycoceras (Proeucalycoceras) guerangeri Kennedy p. 214 |
| 2013 | Calycoceras (Proeucalycoceras) guerangeri Ahmad et al. p. 25 figs. 3a-c, 4a-b |
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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.
†Calycoceras (Proeucalycoceras) guerangeri Spath 1926
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 29.1 | 25.0 | 33.0 | 29.5 | 3.86 | |
| shell diameter | 4 | 77.6 | 65.0 | 98.0 | 75.5 | 14.1 | |
| shell inflation | 4 | 25.0 | 20.0 | 34.0 | 24.0 | 6.03 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Cenomanian or 100.50000 to 93.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian | USA (New Mexico) | Calycoceras guerangeri (177096 230782) | |
| Late/Upper Cenomanian | Jordan | Calycoceras guerangeri (178485) |