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Thuja pacifica
Thuja pacifica Golovn. Chaunsk. Fl. Okhot.-Chukotsk. Vulkan. Poyasa 150. 2018
- Name
- Thuja pacifica
- Rank
- Species
- Generic Name
- [Genus] Thuja
- 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
- 150
- Year
- 2018
- Fossil Status
- leafy twigs
- Stratigraphy
- Coniacian
- Strat. comment
- Koekvun Formation
- Location
- Palyavaam River basin, Akakagyrgyn Creek, 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, # 228
- Diagnosis
- Higher-order branchlets disposed in a plane, flattened, highly divided. Branching alternate, asymmetrical, with short ultimate branchlets. Leaves scale-like, decussate, imbricate, appressed, dimorphic. Facial leaves rhombic, narrow, weakly keeled, with acute or slightly acuminate apices, 1-2 mm long, about 1 mm wide, apical gland absent. Lateral leaves as long as facial leaves, folded along the midline, falcate, partially covering the base of facial leaves, 1-2 mm long, 0,5-0,7 mm wide, with acute, straight, free apices. Leaves on branchlets of the previous year longer than on ultimate branchlets, up to 3-4 mm in length. Seed cones terminal on short, straight branchlets, ellipsoid, 4 mm long, 3 mm in diameter, with several overlapping, elliptical, transversely convex leathery scales with indistinct umbos.
