Fungalpedia – Note 334, Fusidiporosporonites (Fossil fungi)
Fusidiporosporonites Z.C. Song.
Citation when using this data: Saxena RK & Hyde KD. 2024 (in prep) – Fungalpedia, Fossil Fungi.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Classification: Fungi, Fossil Ascomycota, Incertae sedis, Amerosporae.
The monotypic fossil genus Fusidiporosporonites was described by Song et al. (1989) from the Shahejie Formation (Late Eocene-Middle Oligocene, 38–20 mya) of Shenxian County of Shandong Province, China. This genus includes one-celled spores that are narrowly fusiform in outline and tapered to form a short tube at each terminal end. The spores had two pores situated at the tips of the short tubes. Pores are simple and unstructured, Spore wall is moderately thick, variously ornamented, but commonly thin and weak. According to Song et al. (1989), the ornamentation and shape of the type species are similar to those of Lacrimasporonites minutaestriatus P. Ke & Z.Y. Shi 1978 [Current name: Monoporisporites minutaestriatus (P. Ke & Z.Y. Shi) Kalgutkar & Janson. 2000]; however, the latter has only one pore and one short terminal tube. Fusidiporosporonites minutaestriatus is characterized by numerous transverse and fine striae. This feature separates it from Striadiporites, which is characterized by longitudinal ridges (that may form a reticulum). This genus can also be distinguished from Fusiformisporites on the basis of transverse striations and more elongated terminal tubes.
Type species: Fusidiporosporonites minutaestriatus Z.C. Song in Song et al. 1989.
Figure 1 – Fusidiporosporonites minutaestriatus. Scale bar = 12 μm. Redrawn from Song et al. (1989).
References
Ke P, Shi ZY. 1978 – Early Tertiary spores and pollen grains from the coastal region of the Bohai (in Chinese); Academy of Petroleum Exploration, Development and Planning Research of the Ministry of Petroleum and Chemical Industries and the Nanjing Institute of Geology, and Paleontology, Chinese Academy of Sciences, Kexue Chubanshe, Peking, 177 p.
Song ZC, Li GX, Cao L, Luo HC, Sun ZH. 1989 – Early Tertiary sporo-pollen assemblages from the Dongpu region; Edited by Research Institute of Exploration and Development, Zhongyuan Petroleum Exploration Bureau, Nanjing Institute of Geology and Palaeontology, Academia Sinica, 192 p.
Entry by
Ramesh K. Saxena, Birbal Sahni Institute of Palaeosciences, Lucknow, India
(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 27 August 2024