Abstract
Archicupressus is a new genus of the Cupressaceae based on a permineralized conifer female cone from the Upper Cretaceous of Hokkaido. The type species,Archicupressus nihongii sp. nov., is characterized by peltate bract-scale complexes consisting of a completely fused bract and scale bearing erect seeds. Bract-scale complexes are arranged in whorls of three on the cone axis. Each complex has a bristle-like projection, the bract apex, at the top. Affinities to some genera in the Cupressaceae are discussed.
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Consecutive number from the previous paper (Ohsawaet al., 1992). Supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan to Makoto Nishida, No. 02640533.
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Ohsawa, T., Nishida, H. & Nishida, M. Structure and affinities of the petrified plants from the cretaceous of northern Japan and Saghalien XI A cupressoid seed cone from the Upper Cretaceous of Hokkaido. Bot Mag Tokyo 105, 125–133 (1992). https://doi.org/10.1007/BF02489408
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DOI: https://doi.org/10.1007/BF02489408