A new British Carboniferous calamite cone, Paracalamostachys spadiciformis

12 2 Wed, 01/01/1969 - 12:00 July 253 261

THOMAS, B. A. 1969. A new British Carboniferous calamite cone, Paracalamostachys spadiciformis. Palaeontology, 12, 2, 253–261.

B. A. Thomas The Palaeontological Association (Free Access)