Robustum nodum explained

Robustum nodum is the one species of a problematic genus of Ordovician hemithecellid mollusc proposed by Stinchcomb and Darrough in 1995.[1] Its similarities to Matthevia were outlined by Vendrasco & Runnegar.[2]

Notes and References

  1. 1306279. 52–65. Stinchcomb. B. L.. Darrough. G.. Some Molluscan Problematica from the Upper Cambrian. Lower Ordovician of the Ozark Uplift. 69. 1. Journal of Paleontology. 1995. 10.1017/S0022336000026913.
  2. 10.1666/0022-3360(2004)078<0675:LCAEOS>2.0.CO;2. 2004. 78. 675. Late Cambrian and Early Ordovician Stem Group Chitons (Mollusca: Polyplacophora) from Utah and Missouri. Vendrasco. Michael J.. Runnegar. Bruce. Journal of Paleontology. 4.

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