Paleozoic in situ spores and pollen. Sphenopsida

2021 ◽  
Author(s):  
Jiří Bek
Keyword(s):  
Spores And Pollen ◽  
In Situ Spores

Paleozoic in situ spores and pollen. Lycopsida

2017 ◽  
Vol 296 (1-6) ◽  
pp. 1-111 ◽  
Author(s):  
Jiří Bek
Keyword(s):  
Spores And Pollen ◽  
In Situ Spores

A dipteridaceous fern with in situ spores from the Lower Jurassic in Hubei, China

2009 ◽  
Vol 156 (1-2) ◽  
pp. 104-115 ◽  
Author(s):  
Gaëtan Guignard ◽  
Yongdong Wang ◽  
Qing Ni ◽  
Ning Tian ◽  
Zikun Jiang
Keyword(s):  
Lower Jurassic ◽  
In Situ Spores

An osmundaceous rhizome with sterile and fertile fronds and in situ spores from the Jurassic of western Liaoning

2010 ◽  
Vol 55 (34) ◽  
pp. 3864-3867 ◽  
Author(s):  
XiaoJu Yang ◽  
Wu Zhang ◽  
ShaoLin Zheng
Keyword(s):  
Western Liaoning ◽  
In Situ Spores

A reassessment of the Pennsylvanian lycophyte cone Triplosporite Brown

2014 ◽  
Vol 64 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Barry A. Thomas ◽  
Jiří Bek
Keyword(s):  
Junior Synonym ◽  
The Other ◽  
Type Collection ◽  
In Situ Spores

Abstract The type collection of the lycopsid cone species Triplosporite brownii Unger was re-examined to assess its in situ spores. The cones are monosporangiate with only microspores that possess both cingulum and zona. They equate to the dispersed miospore genus Lycospora and would be identified as Lycospora cf. pseudoannulata. Therefore, the genus Triplosporite Brown is shown to be a junior synonym to Lepidostrobus and a species emendation is given. A comparison is given with the other Lepidostrobus cones which yielded similar in situ microspores of the Lycospora pellucida Group.

Dimorphic fronds and in situ spores of Drynaria (Polypodiaceae) from the upper Pliocene of Southwest China

2012 ◽  
Vol 172 ◽  
pp. 1-9 ◽  
Author(s):  
Jing-Yu Wu ◽  
Bai-Nian Sun ◽  
San-Ping Xie ◽  
Su-Ting Ding ◽  
Wen-Wen Wen
Keyword(s):  
Southwest China ◽  
In Situ Spores

scholarly journals Two new species of megasporangiate <i>Sigillariostrobus</i> Schimper (Sigillariostrobaceae) fructifications from the British Coal Measures

Fossil Record ◽  
2015 ◽  
Vol 19 (1) ◽  
pp. 1-9 ◽  
Author(s):  
B. A. Thomas ◽  
L. J. Seyfullah
Keyword(s):  
New Species ◽  
Great Britain ◽  
In Situ Spores ◽  
Two New Species ◽  
Coal Measures

Abstract. The arborescent lycophyte group known as the sigillarians bore pedunculate fructifications, including Sigillariostrobus Schimper, which has a known propensity to disaggregate, making comparisons of cones and in situ spores often difficult if not impossible. Sigillariostrobus is monosporangiate, containing either megaspores or microspores. Two new species of Sigillariostrobus with megaspores are described from the British Coal Measures. Two cones of Sigillariostrobus saltwellensis sp. nov. are described from Langsettian–Duckmantian strata of Great Britain, containing in situ Laevigatisporites glabratus (Zerndt) Potonié and Kremp spores, making this the first British Sigillariostrobus species described containing such spores. Sigillariostrobus barkeri sp. nov. is given here to the previously described cone with in situ Tuberculatisporites brevispiculus (Schopf) Potonié and Kremp spores. This is the first Sigillariostrobus cone with this megaspore species in situ, and thus shows that T. brevispiculus and T. mamillarius (Bartlett) Potonié and Kremp are not conspecific as others have previously suggested.

A new Miocene fern (Palaeosorum: Polypodiaceae) from New Zealand bearing in situ spores of Polypodiisporites

2019 ◽  
Vol 57 (1) ◽  
pp. 2-17 ◽  
Author(s):  
Uwe Kaulfuss ◽  
John G. Conran ◽  
Jennifer M. Bannister ◽  
Dallas C. Mildenhall ◽  
Daphne E. Lee
Keyword(s):  
New Zealand ◽  
In Situ Spores
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