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Fissilobiceras
Taxonomy
Fissilobiceras was named by Buckman (1919) [Sepkoski's age data: J Bajo-l Sepkoski's reference number: 302]. It is not extant.
It was reranked as Sonninia (Fissilobiceras) by Westermann and Riccardi (1972).
It was assigned to Sonninia by Westermann and Riccardi (1972); to Ammonoidea by Sepkoski (2002); to Hammatoceratinae by Howarth (2013); and to Hammatoceratidae by Galácz (2015).
It was reranked as Sonninia (Fissilobiceras) by Westermann and Riccardi (1972).
It was assigned to Sonninia by Westermann and Riccardi (1972); to Ammonoidea by Sepkoski (2002); to Hammatoceratinae by Howarth (2013); and to Hammatoceratidae by Galácz (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1919 | Fissilobiceras Buckman |
| 1972 | Sonninia (Fissilobiceras) Westermann and Riccardi p. 59 |
| 2002 | Fissilobiceras Sepkoski |
| 2013 | Fissilobiceras Howarth p. 110 |
| 2015 | Fissilobiceras Galácz |
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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.
G. †Fissilobiceras Buckman 1919
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†Fissilobiceras ovale Quenstedt 1886
†Fissilobiceras zitteli Gottsche 1878
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Early/Lower Bajocian or 170.90000 to 168.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliensbachian - Bajocian | Chile (Chañaral) | Sonninia zitteli (223767) | |
| Aalenian - Bajocian | Hungary | Sonninia ovalis (64311) | |
| Early/Lower Bajocian | Hungary | F. ovale (220904) | |
| Discites | United Kingdom | F. ovale (141363) |