波西米亚白垩纪盆地特有针叶树

IF 1.6 3区地球科学 Q2 Earth and Planetary Sciences

Palaeontographica Abteilung B-Palaeophytologie Palaeobotany-Palaeophytology Pub Date : 2015-01-23 DOI:10.1127/PALB/292/2015/79

J. Kvaček

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引用次数: 6

摘要

从化石分类群的新概念出发，讨论了松毛虫属的地位。捷克波西米亚白垩纪盆地peru - korycany组(Cenomanian)中描述了Elatocladus velenovskyi J. kva ek nom11 .十一月份的针叶树不育枝。本文报道了来自布拉格(Hloubětín-Hutě)地区的新材料，由于保存完好的角质层，对该分类群的表皮特征进行了描述。本文重新考察了来自佩鲁奇地区的异种红杉的类型材料，选择了一种选择型，并因命名原因引入了一种新种。讨论了来自白垩纪地层的类似的长尾龙物种。新材料初步归属于柏科。蒙大拿早白垩世的E. velenovskyi和E. montanensis与格陵兰晚白垩世的E. smittiana具有明显的相似性。简要讨论了相关的生殖结构，即珠状球果“红杉”白柱Velenovský & Viniklář、“红杉”长形红杉Mařík和“红杉”长形红杉拜耳。

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Elatocladus velenovskyi nom. nov., acharacteristic conifer of the Bohemian Cretaceous Basin

The status of the genusElatocladus is discussed in the light of a new concept of fossil-taxa.Elatocladus velenovskyi J. Kvaček nom. nov. of sterile conifer twigs is described from the Peruc-Korycany Formation (Cenomanian) of the Bohemian Cretaceous Basin (Czech Republic). New material from the locality of Prague, Hloubětín-Hutě, is reported on and, due to the well-preserved cuticle, a description of the epidermal characteristics of the taxon is included. The Sequoia heterophylla type material from the type locality Peruc is revisited, a lectotype selected and a nomen novum Elatocladus velenovskyi introduced for nomeclatural reasons. Similar previouslydescribedElatocladus species fromtheCretaceousstrataarediscussed.Basedonitsepidermalcharactersandmacromorpholgy the new material is preliminarily assigned to the family Cupressaceae s.l. A marked similarity is recorded between E. velenovskyi and E. montanensis from the Early Cretaceous of Montana, and E. smittiana from the Late Cretaceous of Greenland. Associated reproductive structures, i.e. the ovuliferous cones “Sequoia” cylindrica Velenovský & Viniklář, “Sequoia” oblonga Mařík, and “Sequoia” elongata Bayer are briefly discussed.

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来源期刊

Palaeontographica Abteilung B-Palaeophytologie Palaeobotany-Palaeophytology 地学-古生物学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Section B of Palaeontographica publishes contributions to palaeobotany, i.e. papers on morphological traits, systematics and phylogenetic features of plants as well as papers on palaeoclimatology and palynogeography. Especially worth mentioning are the comprehensive monographs published in Palaeontographica B on specific floras or plant groups. Often palaeoclimatic or stratigraphic problems are clarified by resorting to palaeobotanical data published in Section B of Palaeontographica. Throughout the last decades, numerous objects important to palaeophytology have been found in many places all over the world. As Palaeontographica publishes papers on floras on any parts of the world to report world-wide research, contributions in German, English and French have been published since the beginning of the journal, today English language publications are preferred. Palaeontographica B is of interest to palaeobotanists, palynologists, palaeoclimatologists, stratigraphers and the libraries of all institutions engaging in such research.