Some species of the genus Glottolepis Bose & Srivastava; from the Triassic of Nidpur, India

Abstract

Certain observations on Glottolepis rugosa Bose & Srivastava, regarding the morphography of veins and the distributional pattern of stomata, have been made. Four new species of the genus Glottotepis have been instituted on the basis of their external and epidermal features. Amongst the new species, in the texture, G. glabrosa is smooth and G. tuberculata has prominent tubercles but G. sidhiensis and G. ovala are uneven. Further, in broadly ovate form and shape, G. ovata is quite different from others. In their epidermal characters, G. glabrosa is having usually smooth periclinal walls, whereas G. tuberculata possesses diffused papillae on both the surfaces but in G. sidhiensis papillae are confined only to anticlinal walls while in G. ovata almost the entire cell surface bears fine striations inclusive of subsidiary cells.