Eosemionotus

Eosemionotus is an extinct genus of prehistoric marine macrosemiid ray-finned fish from the Middle Triassic. It was a speciose genus known from throughout Europe, including formations of the Muschelkalk.
The following species are known:

E. ceresiensis Bürgin, 2004 - early Ladinian of Italy
E. diskosomus López-Arbarello et al., 2019 - early Ladinian of Italy and Switzerland
E. minutus López-Arbarello et al., 2019 - early Ladinian of Italy
E. ratumensis Diependaal et al. 2024 - mid-late Anisian of the Netherlands
E. sceltrichensis López-Arbarello et al., 2019 - Ladinian of Switzerland
E. vogeli - late Anisian of Germany

In addition, indeterminate remains of Eosemionotus are known from Spain, Slovenia, and China.
The Tethys Ocean appears to have been the center of diversification for the genus. The species E. vogeli appears to descend from a population that dispersed from the Tethys into the Germanic Basin prior to the late Anisian.