07537 - Top Quality 1.72 Inch Platyscutellum sp Lower Devonian Trilobite Dyrosaurus phosphaticus The base and the tip

The base and the tip could belong to different teeth

It is the rostral bone of the giant sawfish Onchopristis numidus

Beautiful specimen of Vanadinite crystals in natural Manganese-Iron Matrix

has been prepared as free-standing on the matrix

They have been cleaned and prepared to match it from its natural carbonaceous matrix

07537 - Top Quality 1.72 Inch Platyscutellum sp Lower Devonian Trilobite Dyrosaurus phosphaticus The base and the tipNice specimen of this lower Devonian trilobite species. The matrix has some fractures that have been glued together. It has been carefully prepared during a long laboratory process. Platyscutellum, Snajdr 1958 (trilobite) Trilobita Corynexochida Styginidae Parent taxon: Styginidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Ecology: nektobenthic carnivore Environments: marine, carbonate, open shallow subtidal, reef, buildup or