The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2024

IDNAME urn:idName:ifpni.org:species:AB9DABC5-60A3-45FE-50B4-49348C28B9EE species
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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.

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