On the wiki, I see the diffused information that on "modern" Sarpadia the Thrull are the dominating species (that is verified) but they live with a Thallid population in Havenwood. From where does this information come from? From the sources linked to the various articles (like https://magic.wizards.com/en/articles/archive/tea-and-biscuits-pete-venters-2007-06-07) and from the flavor text of <c>Brassclaw Orcs</c> from the fifth edition, it seems to me that the other surviving race of Sarpadia, after the Thrulls, are those few orcs who escaped the Thrulls.
So, how we know that Thallids are still on Sarpadia? Perhaps just by their appearance during time spiral block? Couldn't that just indicate that they were just one of the past creatures bring in the present by the time rifts, thus not indicating uniquesly their surviving on "Modern" Sarpadia?
EDIT: Woops, nevermind, I've just found out that it comes from <c>Thelon of Havenwood</c> flavor text "The sight of my thallids still thriving is a bittersweet welcome to this cold waste." The topic can be closed, if nobody else needs it.
So, how we know that Thallids are still on Sarpadia? Perhaps just by their appearance during time spiral block? Couldn't that just indicate that they were just one of the past creatures bring in the present by the time rifts, thus not indicating uniquesly their surviving on "Modern" Sarpadia?
EDIT: Woops, nevermind, I've just found out that it comes from <c>Thelon of Havenwood</c> flavor text "The sight of my thallids still thriving is a bittersweet welcome to this cold waste." The topic can be closed, if nobody else needs it.