Paraceraurus exsul Beyrich 1846. Ordovician, Llanvirn series, Dubovici Formation, Duboviki, River Volchov, St Petersburg, Russia. Pete Lawrance collec

---

Paraceraurus exsul Beyrich 1846. Ordovician, Llanvirn series, Dubovici Formation, Duboviki, River Volchov, St Petersburg, Russia. Pete Lawrance collection

---

Size: 7237px × 4830px
Photo credit: © SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: exsul, extinct, extinction, fossil, fossilisation, fossilised, llanvirn, ordovician, palaeozoic, paraceraurus, petersburg, river, rock, series, st, trilobite, volchov