A NEW FAMILY OF TRIASSIC LOBSTERS (DECAPODA: ASTACIDEA) FROM BRITISH COLUMBIA AND ITS PHYLOGENETIC CONTEXT From: Journal of Paleontology | Date: January 1, 2004| Author: Feldmann, Rodney M; Zonneveld, John-Paul; Amati, Lisa | Copyright Paleontological Society Jan 2004. Provided by ProQuest LLC.Copyright information

ABSTRACT-Chimaerastacus pacifluvialis, new genus and species, is established on the basis of fossils from the Middle Triassic Liard Formation of northeastern British Columbia. It has well-defined cervical, postcervical, and branchiocardiac grooves; three longitudinal ridges on the cephalic region; and true chelae on the first through third pereiopods. The morphological features of the carapace are a combination of traits used to define both the erymids and the glypheids. A cladistic analysis ...

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