Order
LAMNIFORMES Berg
1958
Family LAMNIDAE Müller & Henle 1838
"Isurus" flandricus
(Leriche, 1910)
- Oligocene
[Isurus
desori flandrica]
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This Oligocene shark is a worldwide scarce and little known species. Leriche
(1910) mentioned and partly figured an associated flandricus tooth
set found in the late Rupelian Boom Formation of NW Belgium, consisting of
42 teeth and 69 vertebra (Coll. Delheid).
All figured specimens, some of them still with phosphorite attached on the
root, were found in the Early Oligocene, Early Rupelian, Base Boom Clay (circa
32 Ma) in Belgium.
________________
DELHEID,
E., 1899. Quelques découvertes dans l'argile
de Boom. Annales de la Société Royale de Malacologique de
Belgique, 34, Bulletin des séances, p. LXXVII.
LERICHE, M., 1910. Les
poissons oligocènes de la Belgique. Mémoire
du Musée Royal d'Histoire Naturelle de Belgique, 363 pp.