Seed

Seeds are ancient Cybertronian weapons used to Cyberform organic life into the Transformers Cybermetal. They are mainly used by The Creators.

Biography
Seeds are specificaly designed to kill off organic life instantly. They work by reconifgure into charge mode, while turning on they're blure charge lights. They hover low above the ground, and start spinnning extremely fast. When they detonate, it causes a huge wave of molten lava-like substance that burns the skin and organs off of organic life and turns they're bones into Cybermetal. Ounce it cools down, it leaves a perfect skeleton of the species killed, only its made of Cybermetal. They are launched by Creator Ships

Fiction
In Transformers Age of Extinction, A huge fleet of Creator Ships entered the orbit of prehistoric earth, they flew low over the planets surface, and started deploying hundreds of Seeds. The Seeds killed off the Dinosaurs completely, Turning them all to Cybermteal fossils. After the extinction of the Dinosaurs, the Creator Ships deployed huge Driller-Type tentacles that collected the Dinosaurs Cybermetal. There was only one surviving Dinosaur, the Psittacosaurus is seen surving the seed blast, and soon returning to watch the Creators collect the metals. Later in the film, it explains how a company called KSI collects these metals an uses them to desgin their very own man-made Transformers. The owner of the company,Joshua Joyce, Wanted more Transformium to biuld his Transformers. He wanted a seed to detonate so he can get "Enough Transformium for a hundred Years". Lockdown happens to have one with him. He trades the seed with Cemetery Wind for Optimus Prime as his prisoner. Later, Harold Attinger gives Joshua the seed, but Joshua starts having secound thoughts. he explains to Harold how he didnt want the seed at this moment. Harold trys to explain "how "good men" have died for that thing". But Joshua refuses. At that moment, Galvatron gains control over Joshua's Prototypes and attacks the factory. He tells Harold that he should

Get out of here quickly. Joshua quickly escapes Harold, with the Seed.

"Hey, what are you doing, we had a deal! You got what you wanted!"

"I got what "IT" wanted"

-Joshua to Harold just before the elevator door closes

Later in the film, Joshua calls one of his KSI scientists so he can know what the Seeds blast radius is. The Scientist's say "duh", as if its a easy question. Later when Joshua is in the elevator, when he receives a text message back from the Scientist. the text says:"like a tactical Nuke. Lol! :)" Joshua starts laughing histerically, and over-telling the guy in the elevator how ridiculous his day was. So it may be possible that the seeds blast radius is "like a Tactical nuke".

The seed never detonates in the film, and it is unkown what happens to it.