Cepola yrieuensis Steurbaut, 1984
publication ID |
https://doi.org/ 10.5194/fr-24-233-2021 |
persistent identifier |
https://treatment.plazi.org/id/EE5A87F3-FF8B-225F-FCFD-E4F212A2E0DC |
treatment provided by |
Felipe |
scientific name |
Cepola yrieuensis Steurbaut, 1984 |
status |
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Cepola yrieuensis Steurbaut, 1984
Fig. 4L View Figure 4
1984 Cepola yrieuensis –Steurbaut, pl. 29, figs. 13–17
2013 Cepola yrieuensis – Nolf, pl. 294
Material
Two otoliths from level 11.
Distribution
Lower Miocene of the Aquitanian Basin ( Steurbaut, 1984) and the MHB. Priabonian–lower Oligocene of SE France ( Nolf and Girone, 2008; Girone and Nolf, 2009).
Remarks
These otoliths are boat-shaped and have open, divided sulcus. The ostium is oval–rectangular and has an oval colliculum, whereas the cauda is oval-shaped, with an oval colliculum, and placed more dorsally than the ostium. There is a pronounced ventral fissure. These specimens have distinct posterior and posterodorsal angles that only appear on the otoliths of C. yrieuensis previously reported from the Rupelian of France ( Steurbaut, 1984). Compared to C. macrophthalma , these otoliths have an oval, rather than circular cauda, which is placed dorsally. Cepola aff. macrophthalma (Linnaeus) from the middle Miocene of Austria ( Nolf, 2013) also has an oval-shaped cauda but lacks a posterodorsal angle. On the contrary, this angle is present in C. robusta Nolf from the Ypresian of France ( Nolf, 2013), but only in the young specimens.
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