UTILITY OF PROXY CHARACTERS FOR CLASSIFICATION OF FOSSILS: AN EXAMPLE FROM THE FOSSIL XANTHOIDEA (CRUSTACEA: DECAPODA: BRACHYURA)

From: Journal of Paleontology | Date: November 1, 2003| Author: | Copyright information

ABSTRACT-Diagnoses based upon preservable carapace features are provided for the brachyuran families Carpiliidae, Palacoxanthopsidae new family, Pseudoziidae, and Zanthopsidae, newly raised to family status. In order to make family and generic level assignments, characters of the dorsal carapace can be used successfully as proxies for soft-part morphology that is not commonly or never preserved in fossils. The identification of carpiliids and pseudoziids in the fossil record yields critical information about the time of divergence of these groups, no later than Eocene, and the relationships ...

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