Paraceraurus exsull
Coming from the nearly half billion year old Middle Ordovician Asery Level deposits of the Wolchow River region near Saint Petersburg, Russia, this is an example of a member of the Order Phacopida, Family Cheiruridae called Paraceraurus (formerly Cheirurus) exsull. These are very dramatic trilobites, with expansive genal and pygidial spines.
No comments:
Post a Comment