Téléchargez le livre : A New Silurian (Llandovery, Telychian) Sponge Assemblage from Gotland, Sweden

A New Silurian (Llandovery, Telychian) Sponge Assemblage from Gotland, Sweden

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Éditeur :

Wiley-Blackwell


Collection :

Fossils and Strata Monograph Series

Paru le : 2014-02-27

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Description
A newly discovered, diverse sponge fauna of early Silurian age, is described from Gotland, Sweden. This is the first Silurian sponge assemblage known from Baltica, and the only diverse Llandoverian assemblage known worldwide.  The fauna includes 20 genera and 29 species, of which three genera and six species are new. Eighteen species are new to Baltica. The fauna shows strong similarities to later Silurian assemblages in Arctic Canada, but one endemic species comprises ca. 50% of the fauna. The fauna shows that lithistid sponges recovered well from the late Ordovician extinction in some areas, and became widely spread in the early Silurian. In contrast, non-lithistid sponges like, such as hexactinellids, appear to have evolved rapidly during the Late Ordovician – early Silurian interval, and some modern groups probably originated in inshore habitats.
Pages
88 pages
Collection
Fossils and Strata Monograph Series
Parution
2014-02-27
Marque
Wiley-Blackwell
EAN papier
9781118906620
EAN PDF
9781118906637
Informations sur l'ebook
Nombre pages copiables
0
Nombre pages imprimables
88
Taille du fichier
78019 Ko
Prix
21,05 €
EAN EPUB
9781118906644
Informations sur l'ebook
Nombre pages copiables
0
Nombre pages imprimables
88
Taille du fichier
42609 Ko
Prix
21,05 €

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