Ductoroceras

Ductoroceras is an extinct genus of ammonite, a group of marine cephalopod mollusks. These animals lived during the Mesozoic Era, specifically from the Late Triassic period, approximately 227 to 212 million years ago. Fossils of Ductoroceras are found in several regions, with notable occurrences in the Carnian stage of the Triassic.

The genus is characterized by its tightly coiled shell, which is typically involute, meaning that later whorls almost completely cover the earlier ones. The shell can be relatively smooth or exhibit some subtle ornamentation. Ductoroceras belongs to the family Ceratitidae within the order Ceratitida, a major group of ammonites that flourished in the Triassic seas before the dominance of the Phylloceratida and Ammonitida in the Jurassic and Cretaceous.

The life habits of Ductoroceras are not precisely known, but like other ammonites, it is presumed to have been a nektonic organism, capable of swimming in the water column. Its diet likely consisted of small marine invertebrates. The extinction of Ductoroceras, along with many other marine species, occurred during the Triassic-Jurassic extinction event. The study of Ductoroceras contributes to our understanding of ammonite evolution and the paleogeography of the Late Triassic.