Bullerichthys fascidens

Bullerichthys is a genus of eubrachythoracid arthrodire placoderm from the Late Devonian Gogo Formation, considered to be specialised for durophagy.

Skeletal element: 86.9.703
Specimen number: Anterior and posterior supragnathal (upper tooth bones)
Geological age: Frasnian
State/territory: Western Australia
Locality/site: Gogo Formation

Read more: Trinajstic, K., Johanson, Z., Burrow, C., Smith, M.M., Long, J., Clement, A., Choo, B., Maksimenko, A., and Dupret, V. (2025). New specimens of the arthrodire Bullerichthys fascidens Dennis and Miles 1980 show incipient site -specific osteichthyan-like tooth addition and resorption. Swiss Journal of Palaeontology.

Skeletal element: inferognathal (lower jaw) and suborbital bones
Specimen number: SAM P53771
Significance of specimen: used in analysis of bite force (Mitchell et al. 2026)
Geological age: Frasnian
State/territory: Western Australia
Locality/site: Gogo Formation

Read more: Mitchell, D. R., Trinajstic, K., Long, J. A., Fitzpatrick, A. N., Bland, J., & Clement, A. M. (2026). Hard-object feeding adaptations infer relative predator-prey size relationships in Devonian placoderms. Scientific Reports.