高度に習合的なヘレニズム時代の神秘崇拝<ref>Eliade, Mircea (1982) ''A History of Religious Ideas'' Vol. 2. University of Chicago Press. § 205.</ref>では、パンはファネス/プロトゴノス、[[ゼウス]]、[[ディオニューソス]]、[[エロース]]と同一視される<ref>In the second-century "Hieronyman Theogony', which harmonized Orphic themes from the theogony of Protogonos with Stoicism, he is Protogonos, Phanes, Zeus and Pan; in the Orphic Rhapsodies he is additionally called Metis, Eros, Erikepaios and Bromios. The inclusion of Pan seems to be a Hellenic syncretization (West, M. L. (1983) The Orphic Poems. Oxford:Oxford University Press. p. 205).</ref>。
パーンの系譜に関する記述は多岐にわたり、それは神話の時代の奥深くに埋もれているに違いない。パーンがアルテミスに狩猟犬を与え、アポローンに予言の秘密を教えたというのが事実なら、他の自然の精霊と同様、パーンはオリンポスの神々よりも古い存在であるように思われる。パーンの系譜に関する記述は多岐にわたり、それは神話の時代の奥深くに埋もれているに違いない。パーンがアルテミスに狩猟犬を与え、アポローンに予言の秘密を教えたというのが事実なら、他の自然の精霊と同様、パーンはオリンポスの神々よりも古い存在であるように思われる。パンはパンズ(Burkert 1985, III.3.2; Ruck and Staples, 1994, p.132<ref>Pan "even boasted that he had slept with every maenad that ever was—to facilitate that extraordinary feat, he could be multiplied into a whole brotherhood of Pans."</ref>)やパニスコイ(''Paniskoi'')として掛け合わされるかもしれない。
Accounts of Pan's genealogy are so varied that it must lie buried deep in mythic time. Like other nature spirits, Pan appears to be older than the [[Twelve Olympians|Olympians]], if it is true that he gave [[Artemis]] her hunting dogs and taught the secret of prophecy to [[Apollo]]. Pan might be multiplied as the '''Pans''' (Burkert 1985, III.3.2; Ruck and Staples, 1994, p. 132<ref>Pan "even boasted that he had slept with every maenad that ever was—to facilitate that extraordinary feat, he could be multiplied into a whole brotherhood of Pans."</ref>) or the ''Paniskoi''. Kerenyi (p. 174) notes from [[scholia]] that [[Aeschylus]] in ''Rhesus'' distinguished between two Pans, one the son of Zeus and twin of [[Arcas]], and one a son of [[Cronus]]. "In the retinue of [[Dionysos]], or in depictions of wild landscapes, there appeared not only a great Pan, but also little Pans, Paniskoi, who played the same part as the [[Satyr]]s".
[[Herodotus]] wrote that according to Egyptian chronology, Pan was the most ancient of the gods; but according to the version in which Pan was the son of Hermes and Penelope, he was born only eight hundred years before Herodotus, and thus after the Trojan war.{{efn-lr|Herodotus was born about 485 BC, so by his reckoning Pan would have been born around 1285—''earlier'' than the Trojan War as estimated by most of the Greek antiquarians, and a century before the date reckoned by Eratosthenes.}} Herodotus concluded that that would be when the Greeks first learnt the name of Pan.<ref>[[Herodotus]], ''[[Histories (Herodotus)|Histories]]'' II.145</ref>