Lady Prescott transported some flying reptiles! (12)

I believe the answer is:

pterodactyls

'some flying reptiles' is the definition.
(pterodactyl is a kind of flying reptile)

'lady prescott transported' is the wordplay.
'transported' is an anagram indicator.
'lady'+'prescott'='ladyprescott'
'ladyprescott' is an anagram of 'PTERODACTYLS'.

(Another definition for pterodactyls that I've seen is " Lady Prescott transported some flying reptiles!".)

I've seen this clue in The Telegraph.

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