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Acer clarnoense vimerlij vid klena opisanij iz seriyi izolovanih vikopnih listkiv i samariv Vid vidomij z vidkladen piznogo eocenu 1 vidkritih u shtati Oregon u SShA Ce odin iz kilkoh vimerlih vidiv yaki zhivut u sekciyi Macrantha 2 Acer clarnoensePeriod isnuvannya piznij eocen 36 2 mln r t PreꞒ Ꞓ O S D C P T J K Ꝑ N Biologichna klasifikaciyaCarstvo Roslini Plantae Klada Sudinni roslini Tracheophyta Klada Pokritonasinni Angiosperms Klada Evdikoti Eudicots Klada Rozidi Rosids Poryadok Sapindocviti Sapindales Rodina Sapindovi Sapindaceae Rid Klen Acer Sekciya Acer sect MacranthaVid A clarnoenseBinomialna nazva Acer clarnoenseWolfe amp Tanai 1987Opis red Listki Acer clarnoense mayut prostu strukturu i yak pravilo shiroko yajcyuvatu formu z idealno aktinodromnoyu strukturoyu zhilok u yakih pervinni zhilki pochinayutsya bilya osnovi listovoyi plastinki ta vihodyat do krayu Listki negliboko trilopatevi z bichnimi chastkami priblizno vdvichi menshimi za seredinnu chastku a vsi chastki mayut okruglu trikutnu formu Listki mayut p yat osnovnih zhilok i mayut zagalni rozmiri vid 3 1 do 5 0 santimetriv u dovzhinu ta vid 2 3 do 3 7 santimetriv u shirinu Zagalna morfologiya A clarnoense peredbachaye rozmishennya v sekciyi Acer Macrantha Samari A clarnoense mayut sploshenij gorishok Zagalna forma gorishka trikutna z dovzhinoyu samar do 2 1 santimetra i shirinoyu krila 0 3 santimetra Parni samari cogo vidu mayut krila z kutom prikriplennya 60 2 Primitki red Manchester S R McIntosh W C 2007 Late Eocene silicified fruits and seeds from the John Day Formation near Post Oregon PaleoBios 27 1 7 17 nedostupne posilannya z 01 06 2017 a b Wolfe J A Tanai T 1987 Systematics Phylogeny and Distribution of Acer maples in the Cenozoic of Western North America Journal of the Faculty of Science Hokkaido University Series 4 Geology and Mineralogy 22 1 23 74 75 240 amp plate 4 Otrimano z https uk wikipedia org w index php title Acer clarnoense amp oldid 36890293