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Pagiophyllum zhuravlevii
Pagiophyllum zhuravlevii Golovn. Chaunsk. Fl. Okhot.-Chukotsk. Vulkan. Poyasa 155. 2018
- Name
- Pagiophyllum zhuravlevii
- Rank
- Species
- Generic Name
- [Genus] Pagiophyllum
- Authors (Pub.)
- Golovneva L. B.
- Publication
- Chaunskaya flora Okhotsko-Chukotskogo vulkanogennogo poyasa [2018]
- Authors (Book)
- Golovneva L. B.
- Book
- Chaunskaya flora Okhotsko-Chukotskogo vulkanogennogo poyasa
- Page number
- 155
- Year
- 2018
- Fossil Status
- leafy twigs
- Stratigraphy
- Coniacian
- Strat. comment
- Voron'ya Formation
- Location
- Palyavaam River basin, Chukotka Autonomous District, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- North-Eastern Complex Scientific-Exploratory Institute (SVKNII DVO RAN), Far Eastern Branch, Russian Academy of Sciences, Magadan, Russian Federation
- Repository Number
- Coll. PF3, # 192
- Diagnosis
- Ultimate leaf shoots 1-5 cm in length, and 4-8 mm in diameter, branched off at 25-40°, covered spirally disposed, scale-like, densely spaced imbricate leaves. Axes straight, robust, 1,5-2 mm in diameter at ultimate shoots and 5-7 mm in diameter at the perennial shoots. Leaves sessile, falcate, short, broad, with decurrent bases and acute incurved apices; 2-3 mm mm long and 1,5-2,5 mm wide; in lateral view falcate, in upper part dorsiventrally flattened, in view from above -- romboidal or ovate; in section rhomboidal, with distinct abaxial keel and weaker lateral keels, spread from axis at an angle of 30-40°. Leaves at the perennial shoots are bigger, up to 5 mm in length, more widely spaced and spread from axis at an angle of 40-50°. Seed cones on short stout leafy stalks, ovoid, 12-15 mm long, 9-10 mm in diameter. Cone scales woody, flattened, numerous, helically arranged, romboidal, with acute triangular apices and short stalks.
