Systematics of New ZealandMonotis(Upper Triassic Bivalvia): subgenusEomonotis
نویسندگان
چکیده
منابع مشابه
A New Triassic Timescale
The current Triassic chronostratigraphic scale is a hierarchy of three series divided into seven stages, divided further into 15 substages. Ammonoid and conodont biostratigraphies provide the primary basis for chronostratigraphic definition based on global stratotype sections and points (GSSP). I propose that Triassic chronostratigraphic definition should rely entirely on ammonoid biochronologi...
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Halobia daonellaformis new species is described from the lowermost Carnian of northeast British Columbia. Halobia daonellaformis n. sp. is regarded as a primitive Halobia characterized by external ornamentation similar to Daonella lommeli, but with a poorly developed anterior auricle. Morphologic characters of H. daonellaformis n. sp. suggest that Halobia may be not a natural taxon but a polyph...
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Software patterns are a great aid in designing the architecture of application systems. They provide standard solutions for frequently occuring problems. This paper introduces a new schema for systematizing patterns. It arose from firstly, the investigation of a whole spectrum of different patterns and secondly, the application of the principles of human thinking to the classification of these ...
متن کاملSystematics and distribution of Cristaria plicata (Bivalvia, Unionidae) from the Russian Far East.
The number of anodontine bivalve species placed in the genus Cristaria (Bivalvia, Unionidae) from the Russian Far East is still not stable among authors. Some recognize only one valid species Cristaria plicata (Leach, 1815) while others accept two additional species, Cristaria tuberculata Schumacher, 1817 and Cristaria herculea (Middendorff, 1847). In the present study, these taxonomic doubts a...
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The South African species Euparkeria capensis is of great importance for understanding the early radiation of archosauromorphs (including archosaurs) following the Permo-Triassic mass extinction, as most phylogenetic analyses place it as the sister taxon to crown group Archosauria within the clade Archosauriformes. Although a number of species from Lower-Middle Triassic deposits worldwide have ...
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ژورنال
عنوان ژورنال: New Zealand Journal of Geology and Geophysics
سال: 1980
ISSN: 0028-8306,1175-8791
DOI: 10.1080/00288306.1980.10424136