Asaphus dephinus Russian Trilobite

Asaphus delphinus

Trilobites Order Asaphida, Family Asaphidae

Geological Time: Middle Ordovician Asery Horizon

Size: 75 mm

Fossil Site: Wolchow River Region, St Petersburg, Russia

Asaphus delphinus Description: A well-inflated example of an uncommon Asaphid, this is Asaphus delphinus, a trilobite with an unusual fusulinid shape (having pointed anterior and posterior segments). The "Pushme-Pullyou" shape of this trilobite is thought to have been an aid in feeding. They are thought to have scavenged the larger Endoceratid cephalopods, and such a shape would have facilitated access to the interior of the orthocone shell. It has a lifelike pose, as if crawling across its nearly half billion-year-old seafloor matrix. It is accompanied by a central segment of a tiny (5mm) Echinoderm, betrayed by the five-sided shape seen in the last photo.

Also see: Russian Trilobites Asaphid Trilobites Russian Ordovician Asaphus Trilobites Evolutionary Sequence


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