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Early Devonian microvertebrates from Pwll-y-Wrach, Talgarth, South Wales

, : Early Devonian microvertebrates from Pwll-y-Wrach, Talgarth, South Wales. Geobios, Memoire Special 19(Pages 377-382

Agnathan and gnathostome fish microfossils from an Early Devonian site in the St Maughan's Group of South Wales include heterostracans, cephalaspids, dominant thelodont scales including Turinia pagei, nostolepid and gomphonchid acanthodian remains, Nostolepis arctica for example, at least one chondrichthyan with scales called "Nostolepis" robusta, and placoderm plates.

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Related references

Mark Noel, 1986: The palaeomagnetism and magnetic fabric of cave sediments from Pwll y Gwynt, South Wales. This paper describes the palaeomagnetism of 37 samples of clay from Pwll y Gwynt, Powys. The laminated sediments are shown to have acquired a depositional remanent magnetisation in both normal and reversed polarity geomagnetic fields. Magnetic sus...

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