Caviramus

Caviramus schesaplanensis was a basal pterosaur that soared through the skies above what is now the Swiss Alps during the Late Triassic period, approximately 210 million years ago. This small flying reptile possessed a wingspan of around 1.35 meters and displayed the characteristic elongated fourth finger that supported its wing membrane, a hallmark of all pterosaurs.

What sets Caviramus apart from many of its contemporaries is its remarkable dentition. The skull, measuring roughly 10 centimeters in length, contained multicusped teeth with complex crowns—unusual among early pterosaurs. This dental arrangement suggests Caviramus was likely an opportunistic feeder, capable of processing both animal prey like insects and small vertebrates as well as plant material, making it one of the earliest known omnivorous flying vertebrates.

The holotype specimen was discovered in Norian-aged marine limestones near the Schesaplana mountain on the Swiss-Austrian border. The preservation in marine sediments indicates Caviramus likely inhabited coastal environments, hunting over shallow seas and lagoons. Its discovery expanded our understanding of Triassic pterosaur diversity, demonstrating that these aerial pioneers had already evolved considerable ecological variation within their first 20 million years of existence. Caviramus belongs to the family Eudimorphodontidae, a group of primitive pterosaurs that dominated Triassic skies before the rise of more derived forms in the Jurassic.