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Early Evolution of Phyllocarid Arthropods: Phylogeny and Systematics of Cambrian-Devonian Archaeostracans

  • Joseph H. Collette (a1) and James W. Hagadorn (a2)

A phylogenetic analysis and review of Paleozoic phyllocarid systematics is presented using morphology-based characters from Cambrian to modern taxa. The resulting cladograms of the Phyllocarida suggest that the suborder Ceratiocaridina as traditionally defined (families Ceratiocarididae and Caryocarididae) is paraphyletic. Caryocarididae is subsequently elevated to subordinal rank with the erection of Caryocaridina n. suborder, resulting in two monophyletic suborders. Haplocaris n. gen. is erected to contain Caryocarididae taxa without triangular spine-like projections of the anterior telson margin. Emended diagnoses, quantified with morphometrics where appropriate, are integrated into this analysis, and result in synonymy of many Cambrian—Silurian caryocaridids and ceratiocaridids with pre-existing taxa. Two representatives of the Leptostraca are included in this analysis. A visual key of well-established representatives of the Ceratiocaridina is presented and suggestions are offered that will help to improve the long-term stability of the Archaeostraca.

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D. E. G. Briggs , M. D. Sutton , and D. J. Siveter 2003. A new phyllocarid (Crustacea: Malacostraca) from the Silurian Fossil-Lagerstätte of Herefordshire, UK. Proceedings of the Royal Society of London, 271:131138.

C. E. Brett and G. C. Baird 1986. Comparative taphonomy: A key to paleoenvironmental interpretation based on fossil preservation. Palaios, 1:207227.

J. H. Collette and J. W. Hagadorn 2010. Three-dimensionally preserved arthropods from Cambrian Lagerstätten of Quebec and Wisconsin. Journal of Paleontology, 84:646667.

E. Dahl 1987. Malacostraca mistreated—the case of the Phyllocarida. Journal of Crustacean Biology, 7:721726.

R. R. Gurley 1896. North American graptolites; new species and vertical range. Journal of Geology, 4:291311.

G. Hardin 1960. The competitive exclusion principle. Science, 131:12921297.

P. A. Jell 1980. Two arthropods from the Lancefieldian (La 1) of central Victoria. Alcheringa, 4:3746.

R. G. Johnson 1960. Models and methods for analysis of the mode of formation of fossil assemblages. Geological Society of America Bulletin, 71:10751086.

T. R. Jones and H. Woodward 1885. Notes on the British species of Ceratiocaris. Geological Magazine, 2:394397.

T. R. Jones and H. Woodward 1886. On Palaeozoic phyllopoda. Geological Magazine, 3:459460.

J. W. Martin , E. W. Vetter , and C. E. Cash-Clark 1996. Description, External Morphology, and Natural History Observations of Nebalia hessleri, New Species (Phyllocarida: Leptostraca), from Southern California, with a Key to the Extant Families and Genera of the Leptostraca. Journal of Crustacean Biology, 16:347372.

R. I. Murchison 1859. On the succession of the older rocks in the northernmost counties of Scotland; with some observations on the Orkney and Shetland Islands. Quarterly Journal Geological Society of London, 15:262418.

P. R. Racheboeuf , J. Vannier , and G. Ortega 2000. Ordovician phyllocarids (Arthropoda; Crustacea) from Argentina. Paläontologische Zeitschrift, 74:17333.

A. L. Rode and B. S. Liebermann 2002. Phylogenetic and biogeographic analysis of Devonian phyllocarid crustaceans. Journal of Paleontology, 76:271286.

R. Ruedemann 1934. Paleozoic plankton of North America. Memoirs of the Geological Society of America, 2:1133.

T. Spears and L. G. Abele 1998. Crustacean phylogeny inferred from 18S rDNA, p. 169187. In R. A. Fortey and R. H. Thomas (eds.), Arthropod relationships. Chapman and Hall Ltd., London.

T. Spears and L. G. Abele 1999. Phylogenetic Relationships of Crustaceans with Foliaceous Limbs: An 18S rDNA Study of Branchiopoda, Cephalocarida and Phyllocarida. Journal of Crustacean Biology, 19:825843.

R. Watkins , P. S. Meyer , and P. J. Coorough 2007. Silurian of the Great Lakes region, Part 5: Sedimentology and paleontology of the Silurian Waubakee Formation, Milwaukee and Ozaukee Counties, Wisconsin. Milwaukee Public Museum Contributions in Biology and Geology, no. 103.

R. J. Whittle , S. E. Gabbott , R. J. Aldridge , and J. N. Theron 2007. Taphonomy and palaeoecology of a Late Ordovician caryocaridid from the Soom Shale Lagerstatte, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology, 251:383397.

M. Wills 1998. Crustacean disparity through the Phanerozoic; comparing morphological and stratigraphic data. Biological Journal of the Linnean Society, 65:455500.

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Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
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