20053 - Top Well Prepared "Flying" 3.42 Inch Crotalocephalina gibbus Lower Devonian Trilobite Native gold Most of the teeth of

Most of the teeth of this species which are sold by dealers usually have fake roots which have been made-up with a filler paste

Meadowtownella

Posterior horizontal inflection on mandibular retroarticular process

it could belong to either a Spinosaurus or a crocodile

Next you can find a link to the scientific paper: Zarafasaura Oceanis

20053 - Top Well Prepared "Flying" 3.42 Inch Crotalocephalina gibbus Lower Devonian Trilobite Native gold Most of the teeth ofImpressive specimen, prepared in an exceptional way. This trilobite has been prepared as free standing. This type of preparation requires meticulous work of tens of hours. Of course, some of the free standing sectors during the preparation process have been fractured and glued again, with slight restorations in the fracture zones. A preparation like this without small restorations is impossible. Crotalocephalina sp, Pibyl and Vanek 1964 (trilobite)