The first record of a bryophyte in Upper Cretaceous amber from Taimyr, northern Siberia: Taimyrobryum martynoviorum gen. et sp nov (Bryopsida)

Cretaceous bryophyte fossils are known only from a few localities and only a few are known in ultra structural fidelity. We describe a fossil moss gametophyte from Upper Cretaceous Taimyr amber and place it in the fossil genus Taimyrobryum martynoviorum gen. et sp. nov. (Bryopsida). Its unbranched, somewhat zig-zagged stems with distantly spaced, spreading, narrowly lanceolate leaves and the unbranched costa match the gross morphology of Dicranidae; however, the uniformly prosenchymatous leaf cells contradict an affiliation to this subclass. The Yantardakh in the Taimyr Peninsula is the fourth and northernmost Cretaceous amber locality yielding inclusions of bryophytes. (C) 2016 Elsevier Ltd. All rights reserved.