Title: Chapter 4 The Mesozoic larger benthic foraminifera: the Jurassic
Abstract: The Early Jurassic witnessed the steady evolution of the agglutinated forms from small and simple to internally complicated forms, which became abundant from the Pliensbachian onwards, thereby giving the carbonate facies of the Jurassic a characteristic that is recognizable throughout Tethys. In contrast to the Triassic benthic foraminifera, the Jurassic larger benthic foraminifera have been systematically studied on a regional scale. This chapter presents a revision of the taxonomy of the main genera of the Jurassic larger foraminifera and discusses their evolutionary lineages and phylogenetic relationships. The chapter also presents a revised biostratigraphic ages, palaeogeographic, and palaeoenvironmental interpretations. The dominant larger foraminifera of the Jurassic were the agglutinated Textulariina. The Involutinina persisted throughout, while the Miliolina were present but were mainly composed of morphologically small genera, and it was not before the Cenomanian that larger miliolines played an important role in the benthic assemblages of carbonate platforms.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 4
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