I just checked MR James' translation of the Acts of Paul. Thecla is
thrown to the beasts, but miraculously delivered. James has this passage:
This episode is not traceable in the Coptic MS. but it undoubtedly formed
part of the Acts, though its place is uncertain. It is preserved in an
allusion by Hippolytus (early third century) and in an abstract by Nicephorus
Callisti (fourteenth century) in his Ecclesiastical history (ii. 25). There
is also a sentence in the Acts of Titus:
'They departed from Crete and came to Asia: and at Ephesus twelve thousand
believed at the teaching of the holy Paul: there also he fought with beasts,
being thrown to a lion.'
HIPPOLYTUS in his Commentary on Daniel, iii. 29, says:
For if we believe that when Paul was condemned to the beasts the lion that
was set upon him lay down at his feet and licked him, how shall we not
believe that which happened in the case of Daniel? >>
The quotation from Nicephorus follows, but is rather long. So both
experiences with beasts may originally have been present.