Abstract
The echinoid spine described by Donovan & Fearnhead (2017) is reportedly from close to the famous Wolborough Quarry [SX 852704], which is located just to the SW of Newton Abbot in south Devon. The Middle Devonian limestones of this quarry have been described by Scrutton (1978), Leveridge et al. (2003), Leveridge (2011) and Wilmut et al. (2014). As indicated by the authors, and previous research, cherts are exceedingly rare in these limestones.
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