Ekokenia eporrecta ( Koken, 1888 )

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 : 86-88

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.7035411

persistent identifier

https://treatment.plazi.org/id/897AA073-FFFB-3921-E941-C062FB525832

treatment provided by

Felipe

scientific name

Ekokenia eporrecta ( Koken, 1888 )
status

 

Ekokenia eporrecta ( Koken, 1888)

Fig. 32A–G View Fig

Otolithus (Sciaenidarum) eporrectus Koken, 1888: 282 , pl. 18 figs 16–17.

Ekokenia eporrecta – Frizzell & Dante 1965: 704, pl. 87 figs 11–12, 16, pl. 88 figs 5, 11.

“genus Sciaenidarum ” eporrectus – Nolf 1985: 88; 2003: 9, pl. 3 figs 6–9. — Müller 1999: 160, fig. 33/10–15.

Eokokenia eporrecta – Schwarzhans 1993: 27, fig. 11.

“ Sciaenida ” eporrecta — Nolf 2013: 107, pl. 281.

Ekokenia eporrecta – Ebersole et al. 2019: 217 View Cited Treatment , fig. 72e–f.

Remarks

The sulcus type of E. eporrecta might imply a close relationship with the family Haemulidae ; however, by having exclusive sciaenid features such as a strong postero-dorsal angle and constriction of the ostial cristae (particularly the ostial crista inferior), E. eporrecta can be confidently included in the Sciaenidae . The otoliths of E. eporrecta are the most abundant sciaenid species in the collection, and with the clear growth series of the species, it can easily be separated from those of other sciaenids by its short cauda and relatively flat inner face. A single, exceptionally large specimen ( Fig. 32A View Fig ) reveals a strong ontogenetic shift towards a much deeper ventral area and strongly convex inner face.

Stratigraphic and geographic distribution

Lutetian: Weches Formation and “Stone City beds”, Texas; Dobys Bluff Tongue of Kosciusko Formation, Mississippi; “lower” Lisbon Formation, Alabama; Piney Point Formation, Virginia. Bartonian: Cook Mountain Formation, Texas and Mississippi; “upper” Lisbon Formation, Alabama.

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Perciformes

Family

Sciaenidae

Genus

Ekokenia

Loc

Ekokenia eporrecta ( Koken, 1888 )

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

eporrecta

Schwarzhans W. 1993: 27
1993
Loc

Ekokenia eporrecta

Frizzell D. L. & Dante J. H. 1965: 704
1965
Loc

Otolithus (Sciaenidarum) eporrectus

Koken E. 1888: 282
1888
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF