Heraclitus the Paradoxographer (Ἡράκλειτος ὁ Παραδοξογράφος) is known solely through his surviving work, which distinguishes him from the earlier philosopher Heraclitus of Ephesus. His activity is placed in the 2nd century CE based on the style and content of his writing, situating him within the Roman Imperial period and the established tradition of paradoxography [1].

His sole extant work is Περὶ Ἀπίστων (On Unbelievable Things / De Incredibilibus), a collection of 39 brief anecdotes detailing marvelous or paradoxical phenomena from mythology, geography, and natural history [1][2].

Heraclitus is significant as a representative of the paradoxographical genre. His compilation reflects the intellectual curiosity of the era, providing insight into the wonders that fascinated educated Greco-Roman audiences and preserving variants of myths and local legends [1][2].

Sources 1. Perseus Digital Library (Tufts University): http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A2008.01.0620%3Asection%3D1 2. ToposText: https://topostext.org/work/741