(1893) Coprinellus marculentus Redhead, Vilgalys & Moncalvo (2001) Coprinus hexagonosporus Joss.

(1986) Tulosesus marculentus is a species of mushroom producing fungus in the family Psathyrellaceae.

[1] It was first described as Coprinus marculentus by the German mycologist Max Britzelmayr in 1893.

[2] In 2001 a phylogenetic study resulted in a major reorganization and reshuffling of that genus and this species was transferred to Coprinellus.

[3] The species was known as Coprinellus marculentus until 2020 when the German mycologists Dieter Wächter & Andreas Melzer reclassified many species in the Psathyrellaceae family based on phylogenetic analysis.