Gen. et sp. indet. Posted September 11, 2018 Share Posted September 11, 2018 Cephalon, or more specifically - a glabella, my father found today, here in Poland. It is an erratic boulder and so its age is likely Ordovician or Silurian. Can someone tell the trilobite group or even a genus? Link to comment Share on other sites More sharing options...
piranha Posted September 11, 2018 Share Posted September 11, 2018 Technically speaking, the presence of a palpebral lobe and occipital band makes this is a cranidium. The key feature is the cephalic median tubercle found on numerous taxa belonging to the Asaphidae. figure from: Klikushin, V., Evdokimov, A., & Pilipyuk, A. 2009 Ordovician Trilobites of the St. Petersburg Region, Russia. Saint-Petersburg Paleontological Laboratory, Griffon Enterprises Inc., Master Fossil Japan, 541 pp. Link to comment Share on other sites More sharing options...
Gen. et sp. indet. Posted September 11, 2018 Author Share Posted September 11, 2018 Thank you very, very much. Now I feel I know more. Link to comment Share on other sites More sharing options...
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