New colonial acritarch Involusphaeridium gutschicki gen. et sp. nov. from the Lower Sappington Formation (Upper Famennian), western Montana, USA

被引：3
|
作者：
Filipiak, Pawel [1 ]
Kondas, Marcelina [1 ]
di Pasquo, Mercedes [2 ]
Rice, Beverly J. [3 ]
Doughty, P. Ted [4 ]
Grader, George W. [4 ]
Isaacson, Peter E. [5 ]
机构：
[1] Univ Silesia Katowice, Fac Nat Sci, Inst Earth Sci, Bedzinska 60, PL-41200 Sosnowiec, Poland
[2] CICYTTP CONICFT Entre Rios UADER, Lab Palinoestratig & Paleobot, Dr Materi & Espana SN,Diamante E3105BWA, Entre Rios, Argentina
[3] Univ Idaho, Dept Geol Sci, Moscow, ID 83844 USA
[4] PRISEM Geosci Consulting, 1011 West 27th Ave, Spokane, WA 99203 USA
[5] Idaho Geol Survey, Boise, ID 83702 USA
来源：
REVIEW OF PALAEOBOTANY AND PALYNOLOGY | 2021年 / 284卷
关键词：
Famennian; Sappington Formation; Montana; Biological affinity; Enclosing envelope;
D O I：
10.1016/j.revpalbo.2020.104344
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Palynological investigation carried on the samples from the Unit 1 of the Sappington Formation (Upper Famennian, Montana, USA) reveals a presence of rich phytoplankton and microflora assemblages. The presence of spheroidal vesicles approx. 20 mu m in diameter having a rigid smooth wall and frequently arranged in clusters connected by an external coating are proposed as a new taxon named Involusphaeridium gutschicki gen. et sp. nov. The coating on individual vesicles and colonies of I. gutschicki gen. et sp. nov. suggests a link with algal or fungal groups but also, with the eggs of arthropods. Hence, it is considered as incertae sedis (acritarch group). (C) 2020 Elsevier B.V. All rights reserved.
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页数：8
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