A NEW ORDER OF HETEROSPOROUS PLANTS FROM THE LATE CRETACEOUS OF THE KEM' RIVER, WESTERN SIBERIA

dc.contributor.author	Krassilov V.A.
dc.contributor.author	Golovneva L.B.
dc.date.accessioned	2021-01-31T12:50:11Z
dc.date.available	2021-01-31T12:50:11Z
dc.date.issued	2000
dc.identifier	https://elibrary.ru/item.asp?id=14996144
dc.identifier.citation	Paleontologicheskii zhurnal, 2000, , 1, 91-92
dc.identifier.issn	0031-031X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/24139
dc.description.abstract	Remains of a heterosporous plant from the Late Cretaceous of the Tchulymo-Yenisey Basin, Western Siberia, are peculiar in having solitary sporangia on the laminar sporophyll pinnules. The sporangia produce a large number of megaspores in the symmetrically developed tetrads. Microspores are enveloped in the laesural outgrowths of the megaspores. These characters substantiate a new order of pteridophytes representing a special direction in the evolution of heterospory.
dc.subject	Cretaceous	en
dc.title	A NEW ORDER OF HETEROSPOROUS PLANTS FROM THE LATE CRETACEOUS OF THE KEM' RIVER, WESTERN SIBERIA
dc.type	Статья
dc.subject.age	Mesozoic::Cretaceous	en
dc.subject.age	Мезозой::Меловая	ru

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