中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Cupule-bearing cones of Jarudia (Doyleales) and associated leaves from the Early Cretaceous of the New Siberian Islands, Arctic Russia

文献类型:期刊论文

作者Nosova, Natalya3; Crane, Peter R.1,4; Shi, Gongle5; Domogatskaya, Ksenia2
刊名REVIEW OF PALAEOBOTANY AND PALYNOLOGY
出版日期2026
卷号344页码:17
关键词Doyleoid corystosperms Doylea Cupule Leaves Kotelnyi Island Aptian-Albian X-ray micro-computed tomography
ISSN号0034-6667
DOI10.1016/j.revpalbo.2025.105451
英文摘要

A new species of cupule-bearing seed cone assigned to Jarudia (Doyleales) is described from the Lower Cretaceous (Aptian-Albian) Balyktakh Formation of Kotelnyi Island in the New Siberian Islands. The new species, Jarudia borealis sp. nov. is an elongated, cylindrical seed cone consisting of a main axis with helically arranged, densely spaced bract-cupule axis complexes, each of which terminates in a single incurved cupule. Cupulebearing stalks are thin proximally where they are fused with a narrow, elongated bract. Above, they are free from the bract, gradually widen toward the tip and are curved adaxially relative to the main axis. Each cupule is formed by the wide flattened distal part of the cupule stalk, one median and two lateral flaps, and is quadrangular in transverse section. The flattened cupule stalk and three flaps are fused at the apex of the cupule but are free toward the base. Micro-CT scans reveal that most cupules are empty, but maceration of remaining carbonaceous material produced pieces of the cupule cuticle, as well as fragments of the nucellar cuticle and megaspore membrane. Stomata, occasionally present in the outer epidermis of the cupules, are haplocheilic, with 5-8 subsidiary cells. The megaspore membrane is two layered comprising a foot layer and branched, interconnected bacula. The cupule-bearing cones of Jarudia borealis sp. nov. occur closely associated with numerous remains of linear leaves described as Phoenicopsis arcticus sp. nov., as well as rare leaf fragments of Pityophyllum sp. and Ginkgoites sp.

WOS关键词PHOENICOPSIS LEPTOSTROBALES ; KOTELNYI ISLAND ; CZEKANOWSKIALES ; SECTION ; BASIN
资助项目BIN RAS (Saint Petersburg, Russia)[124013100860-6] ; BIN RAS (Saint Petersburg, Russia)[FMMG-2023-0003] ; GIN RAS (Moscow, Russia)[FMMG-2023-0003]
WOS研究方向Plant Sciences ; Paleontology
语种英语
WOS记录号WOS:001582349300001
出版者ELSEVIER
资助机构BIN RAS (Saint Petersburg, Russia) ; GIN RAS (Moscow, Russia)
源URL[http://ir.nigpas.ac.cn/handle/332004/45619]  
专题中国科学院南京地质古生物研究所
通讯作者Nosova, Natalya
作者单位1.Yale Univ, Yale Sch Environm, New Haven, CT USA
2.Russian Acad Sci, Geol Inst, Moscow, Russia
3.Russian Acad Sci, Komarov Bot Inst, St Petersburg, Russia
4.Oak Spring Garden Fdn, Upperville, VA USA
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
推荐引用方式
GB/T 7714
Nosova, Natalya,Crane, Peter R.,Shi, Gongle,et al. Cupule-bearing cones of Jarudia (Doyleales) and associated leaves from the Early Cretaceous of the New Siberian Islands, Arctic Russia[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2026,344:17.
APA Nosova, Natalya,Crane, Peter R.,Shi, Gongle,&Domogatskaya, Ksenia.(2026).Cupule-bearing cones of Jarudia (Doyleales) and associated leaves from the Early Cretaceous of the New Siberian Islands, Arctic Russia.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,344,17.
MLA Nosova, Natalya,et al."Cupule-bearing cones of Jarudia (Doyleales) and associated leaves from the Early Cretaceous of the New Siberian Islands, Arctic Russia".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 344(2026):17.

入库方式: OAI收割

来源:南京地质古生物研究所

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