Palaeoagaracites

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Palaeoagaracites is an extinct monotypic genus of gilled fungus in the order Agaricales. At present it contains the single species Palaeoagaracites antiquus. The genus is solely known from the Lower Cretaceous, Upper Albian stage (about 100 Ma), Burmese amber deposits in Myanmar. Palaeoagaracites is one of only five known agaric fungal species known in the fossil record, the oldest to be described, and only genus from Burmese amber. Palaeoagaracites presents the oldest, and only, evidence of fungal parasitism by other fungi in the fossil record. The fossil displays a complex interrelationship between three different fungal genera. The preserved P. antiquus cap is host to both a mycoparasitic fungus and a hypermycoparasitic fungus. The surface of the Palaeoagaracites specimen hosts the extinct necrotroph fungus Mycetophagites atrebora.