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Paracenoceras calloviense
Taxonomy
Nautilus calloviense was named by Oppel (1858).
It was recombined as Nautilus (Paracenoceras) calloviensis by Jeannet (1951); it was recombined as Paracenoceras calloviensis by Kummel (1956); it was recombined as Paracenoceras calloviense by Bardhan et al. (1994), Jain et al. (2024).
It was recombined as Nautilus (Paracenoceras) calloviensis by Jeannet (1951); it was recombined as Paracenoceras calloviensis by Kummel (1956); it was recombined as Paracenoceras calloviense by Bardhan et al. (1994), Jain et al. (2024).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Nautilus calloviense Oppel p. 547 |
| 1951 | Nautilus (Paracenoceras) calloviensis Jeannet p. 12 figs. Pl 1, fig 1; pl 2, fig 1; text-figs 9-12 |
| 1956 | Paracenoceras calloviensis Kummel p. 407 |
| 1994 | Paracenoceras calloviense Bardhan et al. p. 293 figs. 3, 4, 7, 8A-C |
| 2024 | Paracenoceras calloviense Jain et al. p. 1507 figs. 11A-F,J-K |
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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.
†Paracenoceras calloviense Oppel 1858
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 48.9 | 25.0 | 100.0 | 48.0 | 31.9 | |
| shell diameter | 4 | 84.0 | 42.0 | 190.0 | 79.0 | 64.2 | |
| shell inflation | 4 | 8.31 | 5.00 | 17.0 | 7.50 | 5.32 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Bathonian to the top of the Early/Lower Oxfordian or 168.20000 to 154.80000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bathonian | India (Gujarat) | Paracenoceras calloviense (98374) | |
| Callovian | Yemen (Wadi Hajar) | Paracenoceras calloviense (2602) | |
| Early/Lower Callovian | Poland | Paracenoceras calloviense (235870) | |
| Early/Lower Callovian | Madagascar | Nautilus calloviensis (98155) Paracenoceras calloviense (98094 98129 98130 98165) | |
| Early/Lower Callovian | Switzerland | Nautilus calloviensis (171556) | |
| Early/Lower Callovian | India (Gujarat) | Paracenoceras calloviense (167362) | |
| Middle Callovian | India (Gujarat) | Paracenoceras calloviense (167363) | |
| Middle Callovian | Switzerland | Nautilus calloviensis (171554 171557) | |
| Early/Lower Oxfordian | Switzerland | Nautilus calloviensis (171559) |