A FIRST FIND OF BOTRYCHIUM (OPHIOGLOSSACEAE) IN BULGARIAN PALAEOMACROFLORA

被引：0
作者：
Bozukov, Vladimir [1 ]
Tsenov, Boris [1 ]
Vatsev, Milorad [2 ]
机构：
[1] Bulgarian Acad Sci, Inst Bot, BU-1113 Sofia, Bulgaria
[2] St Ivan Rilski Univ Min & Geol, Sofia 1700, Bulgaria
来源：
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES | 2010年 / 63卷 / 06期
关键词：
Botrychium; Bulgaria; Dospei; early Miocene; fossil macroflora; late Oligocene;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Specimens preserved as coalified compressions of a fern pinna part were investigated. The fossils represent imprints of sterile pinnule - a part of probably two- or tripinnate leaf with 7 pinnule segments preserved. Based on the shape of the pinnule segments, their venation and margin features, these fossils can be assigned to the genus Botrychium (Ophioglossaceae) with a high level of confidence. The tropical American species B. underwoodianum has closest pinna morphology among the recent representatives of the genus. This is the first macrofossil find of Botrychium in Bulgaria and its hypothetical age is the Oligocene/Miocene transition.
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页码：889 / 892
页数：6
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