Here's the timeline in two pieces, so it's bigger! Plus links to Comixology, if you're missing any.
— Products shown: Elephantmen Vol. 04: Questionable Things, Elephantmen Vol. 01: Wounded Animals, Elephantmen Vol. 00: Armed Forces, Elephantmen Mammoth One, Elephantmen Vol. 02: Fatal Diseases, Elephantmen Vol. 03: Dangerous Liaisons, Elephantmen 2260 Vol. 5: Up Close & Personal, Elephantmen 2260 Vol. 3: Learning To Be Human, Elephantmen 2260 Vol. 2: The Red Queen and 4 others.