Signata nicoli Dante & Frizzell, 1965

Lin, Chien-Hsiang & Nolf, Dirk, 2022, Middle and late Eocene fish otoliths from the eastern and southern USA, European Journal of Taxonomy 814, pp. 1-122 : 51

publication ID

https://doi.org/ 10.5852/ejt.2022.814.1745

publication LSID

lsid:zoobank.org:pub:74226488-DE8B-4A64-B1D4-A24C15AE79F6

DOI

https://doi.org/10.5281/zenodo.6492753

persistent identifier

https://treatment.plazi.org/id/897AA073-FF9C-3944-E951-C6A0FB365FCB

treatment provided by

Felipe

scientific name

Signata nicoli Dante & Frizzell, 1965
status

 

Signata nicoli Dante & Frizzell, 1965

Fig. 38I View Fig

Signata nicoli Dante & Frizzell in Frizzell & Dante, 1965: 709, pl. 88 figs 3–4, 21, 25.

Signata nicoli – Schwarzhans 1981b: 113. — Ebersole et al. 2019: 200 View Cited Treatment , fig. 70i–j.

“genus Ophidiidarum nicoli – Nolf 1985: 67.

“ Ophidiida ” nicoli – Nolf 2013: 65, pl. 124.

Remarks

Signata represents yet another extinct taxon within Ophidiidae . The otoliths have a very wide sulcus that is filled only with a very flat, undivided colliculum. This sulcus has a somewhat Sirembo -like aspect, but the stronger convexity of the inner face and the more extended and thinner posterior part are never seen in Sirembo or any other related otolith type. Also, in otoliths of Signata , the areas above and below the sulcus are very restricted. Otoliths of Signata are very well characterized by autapomorphic features, but do not provide any indication for affinities with other ophidiid groups. Two species are included in the genus: S. nicoli and S. stenzeli . The holotype of S. nicoli has smoothly curved cristae, with just an angle on the crista superior, while the otoliths of S. stenzeli have a more elevated angle on the crista superior and two notable undulations in their crista inferior. The holotype of S. nicoli is from the Weches Formation (Lutetian) of Texas, but we did not find additional specimens among our present collection. Ebersole et al. (2019), however, reported a specimen from the “upper” Lisbon Formation (Bartonian) of Alabama.

Stratigraphic and geographic distribution

Lutetian: Weches Formation, Texas. Bartonian: “upper” Lisbon Formation, Alabama.

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Ophidiiformes

Family

Ophidiidae

Genus

Signata

Loc

Signata nicoli Dante & Frizzell, 1965

Lin, Chien-Hsiang & Nolf, Dirk 2022
2022
Loc

Signata nicoli

Ebersole J. A. & Cicimurri D. J. & Stringer G. L. 2019: 200
Schwarzhans W. 1981: 113
1981
Loc

Signata nicoli

Frizzell D. L. & Dante J. H. 1965: 709
1965
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