Gondwanagaricites magnificus References Gondwanagaricites magnificus fossil mushroom Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Agaricales…oldest known fossilized Agaricales mushroom, Gondwanagaricites magnificus, which was unearthed in northeast Brazil and dates to the Aptian Stage of the Lower Cretaceous Series (125 million to 113 million years ago). Read More…oldest known fossilized Agaricales mushroom, Gondwanagaricites magnificus, which was unearthed in northeast Brazil and dates to the Aptian Stage of the Lower Cretaceous Series (125 million to 113 million years ago). Read More