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Eoderoceras praecursor
Taxonomy
Aegoceras praecursor was named by Geyer (1886). It is a 3D body fossil.
It was recombined as Coeloderoceras praecursor by Bremer (1965); it was recombined as Epideroceras praecursor by Alkaya and Meister (1995); it was recombined as Paramicroderoceras praecursor by Blau (1998), Geczy and Meister (2007); it was recombined as Eoderoceras praecursor by Zaitsev and Ippolitov (2023).
It was recombined as Coeloderoceras praecursor by Bremer (1965); it was recombined as Epideroceras praecursor by Alkaya and Meister (1995); it was recombined as Paramicroderoceras praecursor by Blau (1998), Geczy and Meister (2007); it was recombined as Eoderoceras praecursor by Zaitsev and Ippolitov (2023).
Subspecies
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1886 | Aegoceras praecursor Geyer |
| 1965 | Coeloderoceras praecursor Bremer |
| 1995 | Epideroceras praecursor Alkaya and Meister p. 146 figs. Pl 5, figs 6,8,9; text-fig 30 |
| 1998 | Paramicroderoceras praecursor Blau p. 231 figs. Pl 13, figs 1,2 |
| 2007 | Paramicroderoceras praecursor Geczy and Meister |
| 2023 | Eoderoceras praecursor Zaitsev and Ippolitov p. 258 figs. Pl 4, figs 4,5,8 |
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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.
†Eoderoceras praecursor Geyer 1886
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†Coeloderoceras praecursor galacticum Bremer 1965
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 19.0 | 15.0 | 25.0 | 17.0 | 4.72 | |
| shell diameter | 5 | 61.8 | 50.5 | 81.0 | 56.0 | 14.0 | |
| shell inflation | 5 | 27.8 | 23.0 | 37.0 | 26.0 | 5.81 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Raricostatum to the top of the Pliensbachian or 199.50000 to 184.20000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Obtusum - Raricostatum | Hungary (Veszprém Megye) | Paramicroderoceras praecursor (78410) | |
| Raricostatum | Ukraine (Crimea) | Eoderoceras praecursor (230735) | |
| Raricostatum | Türkiye | Epideroceras praecursor (147283 147343) | |
| Early/Lower Pliensbachian | Türkiye | Coeloderoceras praecursor (218656) | |
| Pliensbachian | Türkiye | Coeloderoceras praecursor (218658) |