On Small Pinnate Leaves of Peltasperm Pteridosperms from the Early Triassic of the Kuznetsk Basin (Mal’tsevo Formation, Babii Kamen Locality)
The Babii Kamen flora is one of the most important Early Triassic floras of the Kuznetsk Basin. New data about the floristic assemblage were obtained from the Babii Kamen locality of Mal’tsevo formation. Fragments of fronds were found with very small pinnae and tiny pinnules. The general morphology of these leaves and specific epidermal-cuticular characters show their undeniable affinity to the peltasperm Lepidopteris arctica Mogutcheva, 1980. Leaves of L. arctica were first described from the Lower Triassic locality of Cape Tsvetkov, East Taimyr. The presence of leaves of L. arctica from the Babii Kamen locality confirms the correlation of the deposits of the Mal’tsevo formation with sections of Induan (or Late Permian?) age of the East Taimyr.