Thanarla Pessagno, 1977

Dumitrica, Paulian, Dieni, Iginio & Massari, Francesco, 2022, Valanginian Radiolarians Of Ne Sardinia (Italy) In The Frame Of The Weissert Event, Acta Palaeontologica Romaniae 18 (2), pp. 97-159 : 143

Genus Thanarla Pessagno, 1977

Type species. Phormocyrtis veneta Squinabol, 1903 .

Remarks. The genus was defined as having a multicyrtid costate shell with terminal blade-like feet and constrictions, when present, not occurring at joints. The problem with this genus is that the feet, which are distal projections of costae, are rarely preserved in fossil material. In this case it is difficult to assign some species to Thanarla or to Archaeodictyomitra . Pessagno (1977b) illustrated such blade-like feet in Thanarla veneta (Squinabol, 1904) , T pulchra (Squinabol, 1904) , and T. elegantissima (Cita, 1964) , whereas O’Dogherty ( 1994) assigned to this genus not only species with terminal blade-like feet but also species without such projections. We restrained the genus to T. veneta , T pulchra and T. elegantissima , which are rather big species.

Range. Late Valanginian to Turonian.