Composition and structural features of two Permian parareptile (Deltavjatia vjatkensis, Kotelnich Site, Russia) bone fragments and their alteration during fossilisation

D Kiseleva, O Shilovsky, E Shagalov… - Palaeogeography …, 2019 - Elsevier
The Kotelnich vertebrate fossil site, one of the richest of the Permian period, is characterised
by the excellent preservation of fossil remains due to their burial in a silty anaerobic …