In a lore from Metroid Prime 3: Corruption, it states that the first Elysian was created around 1,400 years ago. The Chozo seem to be made out to be the oldest race in the Metroid universe, perhaps due to their role in regards to Samus and the locations of the missions. And as everyone should know, the Elysians were created by the hands of the Chozo race. Taking a look at the Alimbics, it is stated that Almiiak brought the Alimbic people to victory in the Tetra Border Wars about 2,000 years ago. Keep in mind, time has passed between the missions of Hunters and Corruption. However, there is a chance that these lores were written long ago as well. This would then throw a loop at which one is the older of the two. It seems that the Chozo are more advanced than the Alimbic race; however, it says in the Hunters manual that the Alimbics probably disappeared around several thousand years ago. At the time, the Alimbics were probably the most advanced. Also it's debatable that the Elysians and the Sky Town complex were made off of the Alimbic's Celestial Archive and Guardian works. The descendent of the Chozo and the First, even has the ability to transfer its memory into a databank on Elysia. That sounds similar to how the Alimbics could transfer their essences.

They also both have created their own respective creatures: Quadtroids and Metroids. If Metroid translates into "ultimate warrior" according to the Chozo, then I guess Quadtroid would mean "4 warriors" or "4th warrior" in the Chozo terms. Take this to mind. If the Infant Metroid is included, the Gamma Metroid is the 4th evolution of the Metroid species. If not included, it's the Zeta Metroid. Both forms have 4 limbs and so does the Quadtroid species. Not only that, but like the Zeta Metroid, the Quadtroid also features a leech-like mouth. I believe that the Quadtroid, like the Celestial Archives and Guardians in relation to Sky Town and the Elysians, came before the Chozo's creation of the Metroid. Also there is some other interesting things dealing with the Quadtroid as well.

"Quadtroid
Genetically engineered from leech and reptile DNA, this creature can crawl on almost any surface. The Quadtroid seeks sources of biological energy. The use of a Morph Ball Bomb is the only method to break free of its grasp."

Being made from leech DNA, just goes with my words relating to the Zeta Metroid earlier. Now time to address the reptile DNA. Reptiles as we know have the ability to lay eggs like snakes and alligators. What do we know that lays eggs in regards to Metroids? The Metroid Queen itself, has the ability to produce eggs of Metroids. It is very possible that Quadtroids can also produce eggs of their species, thus sharing an ability with the highest Metroid evolution.

I also think the Alimbics may have helped with the design of Samus's own Chozo Armor. In the Gorea 2 enemy scan, it states that Gorea actually is wearing armor. Now since you know that Gorea is wearing armor, take a look at its phase 1 form. If you look closely, Gorea's shoulder designs look very similar to the Varia Suit's shoulder designs in the Prime Trilogy. Something else to consider is that Gorea also has "arm cannons". The Chozo Armor allows Samus Aran to use any weapon that she obtains due to the armor's adaptation properties, same thing goes for Gorea's armor. When Gorea absorbed the weapons of the 6 hunters, its armor adapted to using the weaponry hence the color change and the reason why it uses their affinity weapons (where as Samus, not obtaining the subweapons from the hunters, doesn't use the weapons at their affinity level). When Gorea was zapped by the Alimbic lasers stationed in the arena, we later see that the armor has changed to a gray format. This is kinda of like how the suit upgrades are shown in the 2-D games of the series, perhaps due to a reaction with the lasers similar to how the Chozo Armor reacted to an overload of Phazon in Metroid Prime giving birth to the Phazon Suit.

How do I know that Gorea's armor is one of Alimbic craft? It states that Gorea emerged as a vapor after its crash landing upon Alinos, and then later changed its cell structure to resemble that of the Alimbics. There is one thing left though, Gorea likely copied their armor as well and thus is the form we see (not the Alimbic figures we see in the vision in the final cutscene). It can change shape after all. In other words, Gorea possibly morphed from regular Alimbic (like in the final ending) into an armored one. Some more reasoning I have that the Alimbics helped with Samus's own suit is that they are the creators of the Universal Ammo, which is basically what Samus's suit can do when it gets new weapons in the form of a compacted green crystal-like pickup.

Dang. Well-done bit of history here!