pronksiaega
Pronksiaega is a small genus of extinct cephalopod‑like marine organisms that lived during the Upper Eocene epoch, approximately 35 to 34 million years ago. Fossils attributed to this genus have been found primarily in the Torminal Formation of southern Patagonia, Argentina, and in the Kintyre Zone of the Scottish Hebridean Basin. The name pronksiaega derives from the Greek “pronkos” meaning “shovel” and the Latin “iaega” meaning “shield,” alluding to the distinctive shell morphology of the species.
Morphologically, pronksiaega specimens possess a flattened, leaf‑shaped carapace with a smooth, glossy surface, measuring between 12
The genus contains two formally described species: P. patagonica and P. caledonica. P. patagonica was first described
While the ecological role of pronksiaega remains speculative, phylogenetic analysis suggests it occupies a basal position