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    American Museum of Natural History
    In:  Micropaleontology, 4 (1). pp. 79-92.
    Publikationsdatum: 2020-06-30
    Beschreibung: The Recent brackish-water foraminiferal faunas of the river estuaries and mangrove swamps of Trinidad are described briefly, and notes on the distribution of species are given. Comparable brackish-water faunas of Miocene and Pliocene age are outlined, and some of the species they have in common with the Recent faunas are described. Comparisons are drawn, where possible, between conditions of deposition of fossil and Recent faunas.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    American Museum of Natural History
    In:  Micropaleontology, 1 (2). pp. 147-151.
    Publikationsdatum: 2020-06-30
    Beschreibung: Tests of planktonic foraminifera are clastic particles from an off-shore source area, shoreward deposition of which is controlled by sedimentary processes. In Recent sediments, significant correlation was observed between depth and per cent of planktonic tests. Islands had a marked effect on the distribution. In fossil sediments, the varying per cent of tests may assist in locating the former strand line, direction of deepening, and possible off-shore topographic anomalies.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    American Museum of Natural History
    In:  Micropaleontology, 1 (2). pp. 109-124.
    Publikationsdatum: 2020-06-30
    Beschreibung: An account of the micropaleontology of the deep-sea sediments deposited in the various zones of the Tethyan geosynclines during the Jurassic and Cretaceous is presented. The study has been considerably hampered by lack of material. Most of the sediments studied came from the present western Mediterranean zone. In general, during the Jurassic (Tithonian) and Lower Cretaceous, radiolarians and globigerines predominated in the zones of subsidence, while Nannoconus and tintinnids were most abundant in the sediments of the deeper zones. Pithonella and Globotruncana predominate in Middle and Upper Cretaceous lithofacies.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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