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Re: Land of the Lost review-spoiler?

such muscles are lacking in birds and crocodiles I think - although not so
sure of this in the case of crocodiles

In birds, the beak means that lips _cannot_ be present. Lip muscles are thus _not_ "absent", but _"inapplicable"_ in birds, means, _unknown_ for the purposes of phylogenetic bracketing. So, the EPB for nonavian dinosaurs consists of the crocodiles and the lepidosaurs; the birds must be ignored.

Crocodiles lack lips.