Eastmanosteus calliaspis

A pachyosteomorph arthrodire placoderm from Gogo.

Geological age: Frasnian
State/territory: Western Australia
Locality/site: Gogo Formation

Skeletal element: inferognathal (lower jaw)
Specimen number: WAM 94.4.1

Skeletal element: Suborbital
Specimen number: WAM 86.9.66

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.