Fungalpedia – Note 167 Cucurbitariaceites
Cucurbitariaceites R.K. Kar, R.Y. Singh & S.C.D. Sah
Citation when using this data: Saxena RK & Hyde KD in prep – Fungalpedia, Fossil Fungi. Mycosphere.
Classification: Hermatomycetaceae, Pleosporales, Dothideomycetes, Ascomycota
The monotypic fossil genus, Cucurbitariaceites, was described by Kar et al. (1972) from the Tura Formation (Palaeocene, 66–56 mya) of Nongwal Bibra, Garo Hills, Meghalaya, India and was diagnosed as: “Pseudoperithecia subcircular to circular, 40-120 μm, outer region darker than inner, laevigate, Asci 1–20 μm, equal or unequal in size, cylindrical to somewhat bulging at tips in mature stage. No true paraphysis were observed, but in some specimens the basal part of asci may join together to form a broad irregular mesh like structure.” Thereafter, the type species (Cucurbitariaceites bellus) was recorded from various states of India, e.g. Andaman and Nicobar Islands (Mandal et al. 1996), Arunachal Pradesh (Mandaokar 2000a), Assam (Mandaokar 1991, 1993, 2005; Chakraborty 2004), Kerala (Varma & Patil 1985), Meghalaya (Tripathi 1989; Saxena et al. 1996), Mizoram (Mandaokar 2000b, 2002a, 2003, Kar et al. 2010) and Nagaland (Mandaokar 2002b). The spore is very similar to the modern Hermatomyces (Doilom et al. 2017)
Type species: Cucurbitariaceites bellus R.K. Kar, H.P. Singh & S.C.D. Sah
Figure 1 – Cucurbitariaceites bellus. Scale bar = 50 μm (redrawn from Kar, Singh & Sah 1972)
Mandal J, Chandra A, Kar RK. 1996 – Palynological findings from the mud volcanoes of Baratang Island (Andaman and Nicobar Islands). Geophytology 25, 77–81.
Mandaokar BD. 2000a – Palynology of coal bearing sediments of the Tikak Parbat Formation (Oligocene) from Namchik River Section, Changlang District, Arunachal Pradesh, India. Tertiary Research 20(1-4), 37–46.
Mandaokar BD. 2002b – Palynological investigation of the Tikak Parbat Formation (Late Oligocene) of Borjan area, Nagaland, India. Minetech 23(1-2), 19–33.
Mandaokar BD. 2003 – Palynology and palaeoecological consideration of Middle Bhuban Formation (Miocene), Lawngtlai, Mizoram, India. Gondwana Geological Mag., Special Volume 6, 185–193.
Ramesh K. Saxena, Birbal Sahni Institute of Palaeosciences, Lucknow, India
Edited by Kevin D. Hyde