Sagaria cilentana gen. et sp nov.-A New Angiosperm Fructification from the Middle Albian of Southern Italy
Sagaria cilentana gen. et sp nov.-A New Angiosperm Fructification from the Middle Albian of Southern Italy
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DOI：
10.1016/j.cretres.2009.12.001
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发表时间：
2010-06-01
影响因子：
2.1
通讯作者：
Mickle, James E.
中科院分区：
文献类型：
--
作者：
Bravi, Sergio;Lumaga, Maria Rosaria Barone;Mickle, James E.
本文报道了被子植物一新化石-Sagariacilentanagen. etsp. nov.，已从意大利坎帕尼亚佩蒂纳附近Monti Alburni的中阿尔比安期“plattenkalk”石灰岩中发现。相关化石包括Pagiophyllum sp.，Podozamites sp.和Zamites sp.被子植物主轴长约8厘米，有三片附着的叶子和一个末端聚伞花序，上面有三个果实。果实顶端分裂，有3 - 4个裂片。离基部4厘米，在主轴下面，有一个裂状结构，可能是一片叶子。标本附近的一片独立的叶子所处的位置表明它来自同一株植物。叶长叶柄，基部钝，叶片右侧有三个裂片。亲和力是不确定的，但在整体形态上显示出与基部真双子叶植物的相似性，特别是毛茛科。(C)2010爱思唯尔有限公司版权所有。
A single specimen of a new fossil angiosperm, Sagaria cilentana gen. et sp. nov., has been recovered from limestones of the "plattenkalk" of the Middle Albian at Monti Alburni, near Petina, Campania, Italy. Associated fossils include Pagiophyllum sp., Podozamites sp. and Zamites sp. The angiosperm has a main axis approximately 8 cm long with three attached leaves and a distal cyme bearing three fructifications. The fructifications display divided distal tips indicating three - four lobes. Four cm from the base, underneath the main axis, there is a lobed structure, presumably a leaf. An unattached leaf near the specimen is in a position that suggests that it comes from the same plant. The leaf has an elongate petiole, obtuse base and on the right side of the lamina are three lobes. Affinities are uncertain but show similarities in overall morphology to basal eudicots, especially Ranunculaceae. (C) 2010 Elsevier Ltd. All rights reserved.