arcuatetikkaus

Arcuatetikkaus is a genus of extinct ray-finned fish that lived during the Early Cretaceous period. Fossils of Arcuatetikkaus have been discovered in what is now Europe. The genus is characterized by its distinctive body shape, which is described as being laterally compressed and somewhat elongated, with a prominent arch in its dorsal profile, hence the genus name "arcuatus" meaning arched. Its caudal fin is typically forked.

The teeth of Arcuatetikkaus are small and pointed, suggesting a diet of small invertebrates or possibly other small fish. The precise ecological niche occupied by Arcuatetikkaus is not fully understood, but its presence in marine or brackish water environments is indicated by fossil site locations. The genus is known from a limited number of specimens, which has contributed to the ongoing study and interpretation of its anatomy and evolutionary relationships. Further research into its skeletal features and comparisons with other Mesozoic fish groups continue to refine our understanding of this ancient lineage.