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Protengonoceras
Taxonomy
Protengonoceras was named by Hyatt (1900) [Sepkoski's age data: K Albi-m]. Its type is Engonoceras gabbi.
It was assigned to Ammonoidea by Sepkoski (2002); and to Engonoceratidae by Kennedy et al. (1998), Bulot (2010) and Robert et al. (2018).
It was assigned to Ammonoidea by Sepkoski (2002); and to Engonoceratidae by Kennedy et al. (1998), Bulot (2010) and Robert et al. (2018).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1900 | Protengonoceras Hyatt p. 585 |
| 1998 | Protengonoceras Kennedy et al. p. 35 |
| 2002 | Protengonoceras Sepkoski |
| 2010 | Protengonoceras Bulot |
| 2018 | Protengonoceras Robert et al. p. 16 |
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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. †Protengonoceras Hyatt 1900
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†Protengonoceras gabbi Böhm 1898
†Protengonoceras neolobitoides Robert et al. 2018
†Protengonoceras planum Hyatt 1903
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Middle Albian to the top of the Late/Upper Albian or 109.00000 to 99.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Albian | Mexico (Sonora) | P. gabbi, P. neolobitoides (191942) | |
| Late/Upper Albian | Spain | P. gabbi (66129) |