Published March 11, 2021 | Version v1
Taxonomic treatment Open

Gen.indet.

Description

Gen. et sp. indet.

EXAMINED MATERIAL. — FSAC-Bouj-358 (Fig. 5F), fragment of toothed bone.

DESCRIPTION

The bone supports two subcomplete and four broken teeth, with very reduced interspace. Teeth are labiolingually compressed, with sharp and convex edges and acute apex. The base of the external surface of the tooth shows a small median depression. The pulpar cavity is full. The lingual surface of the bone is smooth. The labial side is concave but less preserved.

REMARKS

The tooth morphology and its position in the bone are very similar to scombroid remains found in the Priabonian beds of Ad-Dakhla (Zouhri et al. 2017). Comparable teeth are retrieved in the extant Acanthocybium Gill, 1862, and in the fossils Aramichthys Signeux, 1959 from the Eocene of Syria and Scomberodon, Neocybium and Palaeocybium Monsch, 2004 from the Eocene of Belgium and England (Leriche 1905, 1910; Signeux 1959; Monsch 2004). Comparable isolated teeth from the Ypresian Phosphate basins of Morocco were referred to Scomberodon dumonti by Arambourg (1952, Cybium dumonti in the text).

Notes

Published as part of Zouhri, Samir, Gingerich, Philip D., Khalloufi, Bouziane, Bourdon, Estelle, Adnet, Sylvain, Jouve, Stéphane, Elboudali, Najia, Amane, Ayoub, Rage, Jean-Claude & Tabuce, Rodolphe, 2021, Middle Eocene vertebrate fauna from the Aridal Formation, Sabkha of Gueran, southwestern Morocco, pp. 121-150 in Geodiversitas 43 (5) on page 132, DOI: 10.5252/geodiversitas2021v43a5, http://zenodo.org/record/4605963

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Linked records

Additional details

Biodiversity

Genus
Gen.indet.
Taxon rank
genus

References

  • ZOUHRI S., KHALLOUFI B., BOURDON E., LAPPARENT DE BROIN F. DE, RAGE J. - C., M'HAIDRAT L., GINGERICH P. D. & ELBOU- DALI N. 2017. - Marine vertebrate fauna from the late Eocene Samlat Formation of Ad-Dakhla, southwestern Morocco. Geological Magazine 155 (7): 1596 - 1620. https: // doi. org / 10.1017 / S 0016756817000759
  • SIGNEUX J. 1959. - Poissons de l'Eocene de la cimenterie de Doumar (Syrie). Contributions a la geologie de la peninsule arabique. Notes et memoires sur le Moyen-Orient 7: 241 - 248.
  • MONSCH K. A. 2004. - Revision of the scombroid fishes from the Cenozoic of England. Transactions of the Royal Society of Edinburgh Earth Sciences 95: 445 - 489. https: // doi. org / 10.1017 / S 0263593300001164
  • LERICHE M. 1905. - Les poissons tertiaires de la Belgique II. Les poissons eocenes. Memoires du Musee royal d'Histoire naturelle de Belgique 11 (3): 49 - 228.
  • LERICHE M. 1910. - Les Poissons oligocenes de la Belgique. Memoires du Musee royal d'Histoire naturelle de Belgique 5: 231 - 363.
  • ARAMBOURG C. 1952. - Les Vertebres fossiles des gisements de phosphates (Maroc, Algerie, Tunisie). Notes et Memoires du Service Geologique du Maroc 92: 1 - 372.