. Bulletin of the British Museum (Natural History), Geology. LOWER ORDOVICIAN TRILOBITES. Fig. 5. Sketch-map showing fossiliferous localities in the Couches du Landeyran inferi- eures near l'Escougoussou and south-west of Le Foulon. The shaded area around Siala represents the Tertiary outcrop ; the Devonian/Carboniferous rocks are denoted by the brick-pattern ; the Ordovician outcrop is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resembl


. Bulletin of the British Museum (Natural History), Geology. LOWER ORDOVICIAN TRILOBITES. Fig. 5. Sketch-map showing fossiliferous localities in the Couches du Landeyran inferi- eures near l'Escougoussou and south-west of Le Foulon. The shaded area around Siala represents the Tertiary outcrop ; the Devonian/Carboniferous rocks are denoted by the brick-pattern ; the Ordovician outcrop is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)


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