Scientific editing by Alex Maltman.

J. C. W. Cope writes: The paper by Watts et al. contains interesting ideas on landscape evolution, but by concentrating their observations locally, and by overestimating post-Anglian erosion, they may have lost sight of more widespread effects that could have been major contributors to the features they describe, and thus their causative mechanisms may need re-examination.

Cope (1994) suggested that uplift centred in the Irish Sea explained the loss of >2 km of Mesozoic cover there, explaining apatite fission track analyses from the eastern Irish Sea and northwestern England. The southeasterly regional dip of the...

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