Fungalpedia – Note 340, Geotrichites (Fossil fungi)
Geotrichites Stubblef. et al. 1985
Citation when using this data: Saxena RK & Hyde KD. 2024 (in prep) – Fungalpedia, Fossil Fungi.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Classification: Fossil Fungi, Ascomycota, Saccharomycotina, Saccharomycetes, Saccharomycetidae, Saccharomycetales.
Stubblefield et al. (1985) described the monotypic fossil genus Geotrichites from the Late Oligocene or Early Miocene (28.5–16 mya) sediments of Dominican Republic. Geotrichites includes aerial, erect or decumbent septate hyphae, and sometimes branching dichotomously. The conidiophores are micronematous. Conidia are holoarthric, aseptate, produced by schizolytic disarticulation, and variable in size, oblong, or truncate with obtuse ends. According to Stubblefield et al. (1985), Geotrichites conforms to the extant genus Geotrichum Link ex Pers. in most aspects, although it is impossible to determine whether the mycelium is dry or slimy in the fossilized state.
Type species: Geotrichites glaesarius Stubblef. C.E. Mill., T.N. Taylor & G.T. Cole, 1985.
Figure 1 – Geotrichites glaesarius. Scale bar = 5 μm. Redrawn from Stubblefield et al. (1985).
References
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