Fungalpedia – Note 185Exesisporites (Fossil Fungi)


Exesisporites Elsik.

Citation when using this data: Saxena RK & Hyde KD. (2024) in prep – Fungalpedia, Fossil Fungi. 

Index Fungorum, Facesoffungi, MycoBankGenBank, Fig. 1

Classification: Fungi Incertae sedis, Amerosporae.

The monotypic fossil genus, Exesisporites, was described from the Northern Gulf of Mexico’s Miocene-Pleistocene (23–2 mya) sediments (Elsik 1969). This genus is characterized by unicellular, aseptate, psilate, and monoporate spores with a circular outline and a lenticular to spherical shape. It has a centrally located pore, which in most specimens is surrounded by a dark circular patch that is interpreted as a thickened wall.

Type species: Exesisporites neogenicus Elsik.



Figure 1 – Exesisporites neogenicus. Scale bar = 5 μm. Redrawn from Elsik (1969).



Elsik WC. 1969 – Late Neogene palynomorph diagram, northern Gulf of Mexico. Transactions of Gulf Coast Association Geological Society 19, 509–528.


Entry by

Ramesh K. Saxena, Birbal Sahni Institute of Palaeosciences, Lucknow, India


(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)