1
2
May
139
146
CURTIS, M. L. K. 1958. The Upper Llandovery trilobites of the Tortworth Inlier, Gloucestershire. Palaeontology, 1, 2, 139–146.
M. L. K. Curtis Six species of trilobites from the Upper Llandovery rocks of the Tortworth Inlier are described and figured, including one new species, Proetus asaphoides. The Palaeontological Association (Free Access)