Olcostephanus balkanicus (TZANKOV, 1942)

Zoology

Bibliographic references

, - When Abnormality Becomes Perennial in a Reduced Population: The Case of Altudostephanus longicostis gen. et sp. nov. (Valanginian Ammonites, South-Eastern France). Fossil Studies, t. 2, vol. 2, p. 92-109, fig. 1-7 (publié le 25 mai)
 

Types and valuable specimens

CITÉ MNHN.F.A00067