Multiplacophora is a stem-group of chitons with a number of plates arranged in 7 rows along the body.[2] They date to at least the Upper Cambrian, but two lower Cambrian fossils- Ocruranus and Trachyplax - may extend the range downwards.[3]

Multiplacophora
Temporal range: Lower Cambrian–Permian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Polyplacophora
Order: Multiplacophora
Hoare and Mapes, 1995[1]
Families

Families and genera

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References

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  1. ^ a b c Hoare, Richard D.; Mapes, Royal H. (1995). "Relationships of the Devonian Strobilepis and related Pennsylvanian problematica" (PDF). Acta Palaeontologica Polonica. 40 (2): 111–128.
  2. ^ a b Vendrasco, M. J.; Wood, T. E.; Runnegar, B. N. (2004). "Articulated Palaeozoic fossil with 17 plates greatly expands disparity of early chitons". Nature. 429 (6989): 288–291. Bibcode:2004Natur.429..288V. doi:10.1038/nature02548. PMID 15152250.
  3. ^ Larsson, C. M.; Peel, J. S.; Högström, A. E. S. (2009). "Trachyplax arctica, a New Multiplated Problematic Fossil from the Lower Cambrian of North Greenland". Acta Palaeontologica Polonica. 54 (3): 513. doi:10.4202/app.2009.0026.
  4. ^ VINTHER, JAKOB; JELL, PETER; KAMPOURIS, GEORGE; CARNEY, RYAN; RACICOT, RACHEL A.; BRIGGS, DEREK E. G. (2012). "The origin of multiplacophorans – convergent evolution in Aculiferan molluscs". Palaeontology. 55 (5): 1007–1019. doi:10.1111/j.1475-4983.2012.01180.x.