Fungalpedia – Note 162 Biporipsilonites


Biporipsilonites Kalgutkar & Janson.

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

Classification: Fossil fungi

Index FungorumMycoBank

Kalgutkar & Jansonius (2000) instituted the genus Biporipsilonites to accommodate Diporicellaesporites belluloides Z.C. Song 1985 described from the Early–Late Miocene (23–5 mya) sediments of Jiandingshan, Huangshi and Huatugou, Qaidam Basin, Qinghai Province, China with the following diagnosis: “Generally small to medium-sized unicellate fungal spores of more or less elongate fusiform to barrel-shaped outline; generally with a plane of symmetry through the equator; spore wall generally smooth, occasionally with some subdued sculpture, and of medium thickness; two terminal pores, forming pore chambers subtended by a basal septum, and enclosed by thin wall material that further thins centrifugally; septa, thin or thick, may show a central perforation and/or small septal folds; the terminal pore itself may be closed by very thin wall material, or ruptured to gaping and broad.” Spores in this genus can be differentiated from Diporisporites by having pore chambers. The fungus somewhat resembles the modern-day Bipolaris (Manamgoda et al. 2014) or Versicolorisporium (Wijayawardene et al. 2016).

Type species: Biporipsilonites belluloides (Z.C. Song) Kalgutkar & Janson.                 



Figure 1 – Biporipsilonites belluloides. Scale bar = 8 μm (redrawn from Song 1985)



Kalgutkar RM, Jansonius J. 2000 – Synopsis of fungal spores, mycelia and fructifications. AASP Contribution Series 39, 1–423.

Manamgoda DS, Rossman AY, Castlebury LA, Crous PW et al. 2014 – The genus Bipolaris. Studies in Mycology 79, 221-288.

Song ZC. 1985 – A research on Tertiary palynology from the Qaidam Basin, Qinghai Province. Edited by Research Institute of Exploration and Development, Qinghai Petroleum Administration, [and] Nanjing Institute of Geology and Palaeontology, Academia Sinica, 297 p. (in Chinese). Petroleum Industry Press.

Wijayawardene NN, Hyde KD, Wanasinghe DN, Papizadeh M et al. 2016 – Taxonomy and phylogeny of dematiaceous coelomycetes. Fungal Diversity 77, 1–316



Entry by

Ramesh K. SaxenaBirbal Sahni Institute of Palaeosciences, Lucknow, India


Edited by Kevin D. Hyde