 When first reported , Archaeomarasmius leggetti was the second extinct species of agaric fungus to be described , and it is the only species to be known from the New Jersey amber . Three species , Aureofungus yaniguaensis , Coprinites dominicana and Protomycena electra , have been described from the Miocene Dominican amber found in the Dominican Republic . The extinct Agaricomycetes species Quatsinoporites cranhamii , found in marine calcareous concretions on Vancouver Island , Canada , and dating to about 130 – 125 Mya , is probably in the Hymenochaetales or the Polyporales . In 2007 , another agaric was reported , Palaeoagaracites antiquus , found in Early Cretaceous Burmese amber ( about 100 Mya ) . 
