An Ordovician Pycnogonid (Sea Spider) with Serially Subdivided ‘Head' Region

@inproceedings{Rudkin2013AnOP,
  title={An Ordovician Pycnogonid (Sea Spider) with Serially Subdivided ‘Head' Region},
  author={David M Rudkin and Michael B. Cuggy and Graham A. Young and Deborah P. Thompson},
  booktitle={Journal of Paleontology},
  year={2013}
}
Abstract The bizarre morphology of living Pycnogonida, known colloquially as sea spiders, has long fueled dissent over their status within the arthropods. Pycnogonids figure prominently in recent analyses of anterior limb homologies and ancestral crown-group euarthropod relationships, with support for the concept of Pycnogonida as sister taxon to Euchelicerata now contested by proponents of a more basal position between Radiodonta and all other arthropods. A challenge to further elucidation of… Expand
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