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    Wyświetlanie 1-5 z 5
    Tytuł:
    Thirty odd years after Alvarez’s discovery: Faunal evolution and principal bio-events of the Cretaceous Period - recent progress and future directions
    Autorzy:
    Jagt-Yazykova, E.A.
    Jagt, J.W.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/21601.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Alvarez’s discovery
    fauna evolution
    Cretaceous
    progress
    future direction
    paleontology
    Źródło:
    Acta Palaeontologica Polonica; 2012, 57, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new periodical on mammals
    Autorzy:
    Archibald, J.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/23287.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    ecology
    fauna
    new journal
    mammal
    theriology
    evolution
    morphology
    taxonomy
    zoogeography
    paleontology
    journal
    Źródło:
    Acta Palaeontologica Polonica; 2003, 48, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ammonite faunal dynamics across bio-events during the mid- and Late Cretaceous along the Russian Pacific coast
    Autorzy:
    Jagt-Yazykova, E.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/22657.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    ammonite
    fauna dynamics
    Late Cretaceous
    Cretaceous
    Russian coast
    Pacific coast
    Ammonoidea
    evolution
    Opis:
    The present paper focuses on the evolutionary dynamics of ammonites from sections along the Russian Pacific coast during the midand Late Cretaceous. Changes in ammonite diversity (i.e., disappearance [extinction or emigration], appearance [origination or immigration], and total number of species present) constitute the basis for the identification of the main bio−events. The regional diversity curve reflects all global mass extinctions, faunal turnovers, and radiations. In the case of the Pacific coastal regions, such bio−events (which are comparatively easily recognised and have been described in detail), rather than first or last appearance datums of index species, should be used for global correlation. This is because of the high degree of endemism and provinciality of Cretaceous macrofaunas from the Pacific region in general and of ammonites in particular.
    Źródło:
    Acta Palaeontologica Polonica; 2012, 57, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neogene radiolarian biostratigraphy and faunal evolution rates in the eastern equatorial Pacific ODP Sites 845 and 1241
    Autorzy:
    Kamikuri, S.-I.
    Motoyama, I.
    Nishi, H.
    Iwai, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/21655.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Neogene
    Radiolaria
    biostratigraphy
    fauna
    evolution rate
    Pacific Ocean
    Late Miocene
    Miocene
    Middle Miocene
    paleontology
    microfossil
    Opis:
    Radiolarians from Sites 845 and 1241 in the eastern equatorial Pacific were examined in order to evaluate the role of paleoceanographic perturbations upon the general faunal evolutionary pattern of tropical planktonic organisms during the last 17 Ma. Radiolarian appearance and extinction rates indicate no periods of mass extinctions during the past 17 Ma. However, a relatively rapid replacement of the species in the radiolarian assemblages occurs near the middle–late Miocene boundary. This replacement event represents the gradual extinction of a number of radiolarian species and their gradual replacement by evolving new species. The modern equatorial circulation system was formed near the middle–late Miocene boundary due to the closure of the Indonesian seaway. The minor faunal turnover appears to be associated with the formation of the modern equatorial circulation system near the middle–late Miocene boundary. Diatom assemblages in the equatorial Pacific became more provincial in character after about 9 Ma. The appearance and extinction rates of planktic foraminifers were relatively high near the middle–late Miocene boundary, and those of calcareous nannoplankton reached high values in the early late Miocene in the equatorial Pacific Ocean. Thus, faunal evolution from the middle Miocene type to late Miocene types occurred first, being followed by floral evolution. The middle–late Miocene boundary is not a sharp boundary for planktonic microfossils, but marks a time of transition critical for faunal and floral evolution in both siliceous and calcareous microfossil assemblages in the equatorial Pacific Ocean.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chaetopterid tubes from vent and seep sites: Implications for fossil record and evolutionary history of vent and seep annelids
    Autorzy:
    Kiel, S
    Dando, P.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/23540.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    chaetopterid tube
    vent
    seep site
    fossil record
    evolution
    history
    annelid
    fauna
    paleontology
    Vestimentifera
    Pogonophora
    Siboglinidae
    Chaetopteridae
    tubeworm
    chemosynthetic ecosystem
    hot vent
    cold seep
    Opis:
    Vestimentiferan tube worms living at deep−sea hydrothermal vents and cold seeps have been considered as a clade with a long and continuing evolutionary history in these ecosystems. Whereas the fossil record appears to support this view, molecular age estimates do not. The two main features that are used to identify vestimentiferan tubes in the fossil record are longitudinal ridges on the tube’s surface and a tube wall constructed of multiple layers. It is shown here that chaetopterid tubes from modern vents and seeps—as well as a number of fossil tubes from shallow−water environments—also show these two features. This calls for a more cautious interpretation of tubular fossils from ancient vent and seep deposits. We suggest that: current estimates for a relatively young evolutionary age based on molecular clock methods may be more reliable than the inferences of ancient “vestimentiferans” based on putative fossils of these worms; not all of these putative fossils actually belong to this group; and that tubes from fossil seeps should be investigated for chitinous remains to substantiate claims of their potential siboglinid affinities.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 3; 443-448
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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