Using GIS to study palaeobiogeographic and macroevolutionary patterns in soft-bodied Cambrian arthropods
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چکیده
Article history: Soft-bodied Cambrian arth Received 15 August 2007 Received in revised form 27 March 2008 Accepted 3 April 2008
منابع مشابه
Preservation of early and Middle Cambrian soft-bodied arthropods from the Pioche Shale, Nevada, USA
a r t i c l e i n f o The Early–Middle Cambrian Pioche Shale of Lincoln County, Nevada preserves a diverse array of soft-bodied ecdysozoans that are well-known from the Burgess Shale soft-bodied fauna of British Columbia, Canada. At Pioche certain genera occur both above and below the Middle Cambrian boundary, allowing a comparison of the nature of their preservation across this interval. In or...
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Xandarellida is a well-defined clade of Lower Palaeozoic non-biomineralized artiopodans that is exclusively known from the early Cambrian (Stage 3) Chengjiang biota of South China. Here we describe a new member of this group, Xandarella mauretanica sp. nov., from the middle Cambrian (Stage 5) Tatelt Formation of Morocco, making this the first non-trilobite Cambrian euarthropod known from North ...
متن کاملPhylogenomic insights into the cambrian explosion, the colonization of land and the evolution of flight in arthropoda.
The timing of the origin of arthropods in relation to the Cambrian explosion is still controversial, as are the timing of other arthropod macroevolutionary events such as the colonization of land and the evolution of flight. Here we assess the power of a phylogenomic approach to shed light on these major events in the evolutionary history of life on earth. Analyzing a large phylogenomic dataset...
متن کاملBurgess Shale Faunas and the Cambrian Explosion S . CONWAY MoRRIs
Soft-bodied marine faunas from the Lower and Middle Cambrian, exemplified by the Burgess Shale of British Columbia, are a key component in understanding the major adaptive radiations at the beginning of the Phanerozoic ("Cambrian explosion"). These faunas have a widespread distribution, and many taxa have pronounced longevity. Among the components appear to be survivors of the preceding Ediacar...
متن کاملBurgess Shale - Type Preservation and Its Distribution in Space and Time
—Burgess Shale-type fossil assemblages provide a unique record of animal life in the immediate aftermath of the so-called “Cambrian explosion.” While most soft-bodied faunas in the rock record were conserved by mineral replication of soft tissues, Burgess Shale-type preservation involved the conservation of whole assemblages of soft-bodied animals as primary carbonaceous remains, often preserve...
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تاریخ انتشار 2008