Abstract
The Turonian - Coniacian (Late Cretaceous) Arman Flora (North-eastern Russia, Magadan District) exhibits a high diversity of fossil angiosperms (28 dicot species). Based on their physiognomy, palaeoclimate variables were estimated showing that the flora experienced a humid warm-temperate climate without any pronounced seasonality. Palaeoclimate variables estimated for the coastal plain floras (Penzhina, Kaivayam and Tylpegyrgynai floras, North-eastern Russia) are the same (within analytical errors) as those estimated for the Arman Flora that existed within uplands of the Okhotsk-Chukotka volcanogenic belt. This conclusion implies that the elevation of the intermontane basin of the Arman Flora biotope was not high, presumably not more than 600 m - and not sufficient to be reflected in palaeoclimate experienced by the Arman Flora.
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