Dinosaur fossil discovery may be the oldest stegosaur ever found

Fossils have led researchers to a previously unknown species of armored dinosaur that lived 168 million years ago, and it’s unlike anything they’ve ever seen before.
The ancient fossil belongs to a stegosaur, an herbivorous dinosaur with a tiny head and bony plates marching down its back, ending in a spiked tail. The specimen also had some unique characteristics that can’t be traced in other stegosaurs. It’s the oldest one recovered from Asia and may belong to one of the earliest stegosaurs ever found, according to new research.

The researchers named the dinosaur Bashanosaurus primitivus, with “Bashan” in reference to the ancient name of Chongqing and “primitivus” signifying first in Latin, given the dinosaur’s age.

https://edition.cnn.com/2022/03/03/world/stegosaur-fossil-discovery-scn/index.html

fsm said:

Dinosaur fossil discovery may be the oldest stegosaur ever found

Fossils have led researchers to a previously unknown species of armored dinosaur that lived 168 million years ago, and it’s unlike anything they’ve ever seen before.
The ancient fossil belongs to a stegosaur, an herbivorous dinosaur with a tiny head and bony plates marching down its back, ending in a spiked tail. The specimen also had some unique characteristics that can’t be traced in other stegosaurs. It’s the oldest one recovered from Asia and may belong to one of the earliest stegosaurs ever found, according to new research.

The researchers named the dinosaur Bashanosaurus primitivus, with “Bashan” in reference to the ancient name of Chongqing and “primitivus” signifying first in Latin, given the dinosaur’s age.

https://edition.cnn.com/2022/03/03/world/stegosaur-fossil-discovery-scn/index.html

> Stegosauria is one of a larger group of armored dinosaurs known as thyreophorans that lived during parts of the Jurassic period as well as the early Cretaceous period, between 100.5 million and 201 million years ago

Yep. That’s what I thought for time period, middle Jurassic. Though it’s a bit wider time spread than I expected.