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First fossils of the isopod genus Aega Leach, 1815

Published online by Cambridge University Press:  14 July 2015

Thomas Hansen  and
Jesper Hansen
Thomas Hansen
Affiliation:
Department of Geography and Geology, University of Copenhagen, ⊘ster Voldgade 10, DK–1350 K⊘benhavn K, Denmark,
Jesper Hansen
Affiliation:
Department of Natural Sciences, Troms⊘ University Museum, NO-9037 Troms⊘, Norway,
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Abstract

Two abdominal molts representing a small cymothoid isopod are described from the marine late Miocene Gram Formation of southern Denmark. Abdominal molts are generally regarded as being difficult or even impossible to assign to genus or family due to overlap of morphological characters. A preliminary study supported by statistical and multivariate analysis of the genera most closely resembling the specimens reveals that although some overlap in characters do occur, the genera can to a large extent be defined by a diagnostic set of features. The Danish Miocene taxon described herein is assigned to Aega Leach, 1815 as the only known fossil of this important cosmopolitan genus.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 84 , Issue 1 , January 2010 , pp. 141 - 147
Copyright
Copyright © The Paleontological Society 

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