Horný R.J., Vizcaïno D. (1995). Thoralispira, a new Lower Ordovician cyrtonellid genus (Mollusca, Tergomya) from the Montagne Noire, southern France. Bulletin of the Czech Geological Survey. 70(4):25-41.
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Horný R.J., Vizcaïno D.
1995
Thoralispira, a new Lower Ordovician cyrtonellid genus (Mollusca, Tergomya) from the Montagne Noire, southern France