Early surviving examples of the genre include: Palaephatus' On Incredible Things (4th century BC?) the Collection of extraordinary Tales composed by Antigonus of Carystus (fl. 3rd century BC), partly on the basis of a paradoxographical work of Callimachus Apollonius Paradoxographus' Mirabilia (2nd century BC) It is believed that the  pseudo-Aristotelian On Marvellous Things Heard (De mirabilibus auscultationibus) "contains a core of early material from the Hellenistic period which was then added to over time, including some material that was added in the 2nd century C.E. or even later." Laura Gibbs, review of Gabriella Vanotti, Aristotele. Racconti meravigliosi (Milano: Bompiani, 2007), Bryn Mawr Classical Review 2009.02.22
Early surviving examples of the genre include: Palaephatus' On Incredible Things (4th century BC?) the Collection of extraordinary Tales composed by Antigonus of Carystus (fl. 3rd century BC), partly on the basis of a paradoxographical work of Callimachus Apollonius Paradoxographus' Mirabilia (2nd century BC) It is believed that the content of the pseudo-Aristotelian On Marvellous Things Heard (De mirabilibus auscultationibus) originated in the Hellenistic period , while the final form reflects centuries of expansion at least as recent as the second century of the Christian era. Laura Gibbs, review of Gabriella Vanotti, Aristotele. Racconti meravigliosi (Milano: Bompiani, 2007), Bryn Mawr Classical Review 2009.02.22
A
content of the
R
"contains a core of early material from
originated in
R
which was then added to over time, including some material that was added in the 2nd century C.E. or even later."
, while the final form reflects centuries of expansion at least as recent as the second century of the Christian era.