Signatur:
ZSP-164-81
In:
Scientific reports
Beschreibung / Inhaltsverzeichnis:
A reasonably well-preserved macrurous decapod fauna from south-eastern Alexander Island represents the richest and most diversified of its kind so far known from the Lower Cretaceous of the Southern Hemisphere. Although the decapods are widely distributed, they are most numerous within three probably monotypic faunizones, one of which is of some local stratigraphical importance. The fauna comprises numerous small mecochirid-like forms, two species of Glyphea (G. alexandri sp- nov. and G. georgiensis sp. nov.), at least three species of Palaeastacus (P. foersteri sp. nov., P. cf. sussexiensis and P. terraereginae) as well as Trachysoma aff. ornatum, Mecochirus sp., Protocallianassa antarctica sp. nov., Protocallianassa sp., Enoploclytia sp., Schlueteria carinata sp. nov., and numerous appendages. Differences in the shape and size of the epimeres of the mecochirid-like forms are attributed to sexual dimorphism, and the stratigraphical and geographical ranges of Schlueteria have been extended. Associated ammonites indicate that the decapods probably range from Berriasian to Lower Aptian in age. The Glypheidae and Erymidae are similar to those from the Lower Cretaceous (Aptian - Upper Albian) in Queensland.
Materialart:
Schriftenreihen ausleihbar
Seiten:
39, V S. : Ill.
ISBN:
0856650641
Serie:
Scientific reports / British Antarctic Survey 81
URL:
http://www.antarctica.ac.uk/about_bas/publications/scientific_reports/index.php
Zweigbibliothek:
AWI Bibliothek
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