This is a beautiful Portugal trilobite of the species Eodalmanitina destombesi as "Lucky Split".
Fossils that are completely exposed by just splitting its Matrix are called "lucky splits" or split-finish fossils. In the case of trilobites, this rarely works, even in the well laminated mudstones of Valongo, Portugal. The trilobite itself measures about 77 mm in the lamp. Including the long pygidial spine. |
