Holotype of Mieridduryn bonniae a Middle Ordovician euarthropod that shares many aspects with the Cambrian 'weird wonder' Opabinia.
This smaller specimen from Castle Bank might be a second species or represent a juvenile M. bonniae
Reconstruction of Mieridduryn bonniae and smaller specimen by Franz Anthony
Reconstruction of Utaurora comosa by Franz Anthony
Holotype of Buccaspinea cooperi from the Marjum Formation, Utah.
IPC6 Fieldtrip (Satun Geopark, Thailand, 2022). Finding a trilobite in the field isn't always this straightforward!