The Quarterly Journal of the Geological Society of London, Volumen 76The Society, 1921 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Términos y frases comunes
abundant Ammonites angle apex apical appear associated Author base basic become beds belong Carboniferous cardinal Castle characteristic characters closely collection compared complete considerable consist continuation convex crystals cuspidata deposits described developed Devonian direction distinct district dorsal evidence example fact failure faulting fauna feet felspar figured flora fold former fossils further genus Geol Geological horizon indicate intrusion lateral Length less Limestone Linnæus localities Lower margin marked mass material median Middle Natural nearly North occur original plate Pliocene present preserved probably Prof recorded referred regarded Reid represented resemblance result rocks rounded seeds seems seen separated shell showing side similar slightly Society species specimens Spirifer Spiriferina stage strata structure suggested surface Syringothyris Table thick transverse Upper usually valley valve ventral VIII wide Zone