The Carboniferous rhynchonellid Pugnoides triplex (M'Coy)

3 4 March 477 484

PARKINSON, D. 1961. The Carboniferous rhynchonellid Pugnoides triplex (M'Coy). Palaeontology3, 4, 477–484.

D. Parkinson The Palaeontological Association (Free Access)