Fig. 3 in Dimerelloid brachiopod Dzieduszyckia from Famennian hydrocarbon seep deposits of Slaven Chert, Nevada, USA, with insights into systematics and paleoecology of the Dimerelloidea

Fig. 3. Field photograph showing two clearly distinguished dimerelloid brachiopod species, Dzieduszyckia tenuicostata (left) and Dzieduszyckia crassicostata (right), together in an allochthononous limestone boulder. Famennian (Upper Devonian), Sidi Amar, Western Meseta, Morocco.