Fossil wood Cedrus penzhinaensis sp. nov. (Pinaceae) from the Lower Cretaceous of north-western Kamchatka (Russia)

Blokhina N.I., Afonin M.A.

В журнале Acta Palaeobotanica

Год: 2007 Том: 47 Номер: 2 Страницы: 379-389

A new species, Cedrus penzhinaensis sp. nov. is described on the basis of fossil wood anatomy. The wood has been found in Albian or upper Albian (upper Lower Cretaceous) deposits of north-western Kamchatka. This is the fi rst report of fossil wood with Cedrus anatomical structure from the Cretaceous of Russian Far East, and is the oldest macrofossil evidence of the genus Cedrus. This Cretaceous species differs from the modern species of Cedrus as well as from the Palaeogene C. kamtschatkaensis by biseriate pits in the tangential walls of tracheids, lower uniseriate rays, and a greater number of epithelial cells lining traumatic horizontal resin canals.

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