That was Pangea (from the Greek for Entire Earth). It was surrounded by Panthallasa (Greek for Entire Sea).
pangaea
It is surmised that the supercontinent of Pangea formed during the Early Permian Period about 270 million years ago. It began breaking up during the Jurassic Period.
The permian period was the end of the paleozoic era.
the PALEOZOIC era
Paleozoic and Mesozoic eras about 250 million years ago
pangaea
earth used to be a supercontinent called pangea
At the end of the Paleozoic Era all the plates combined together to form a supercontinent called Pangea.
Pangaea was formed during the late Paleozoic era, specifically in the Permian period, around 300 million years ago. It was a supercontinent that included almost all of Earth's landmasses.
Pangaea
Pangaea, the supercontinent, was formed during the late Paleozoic Era, specifically in the Permian Period. It existed approximately 300 million years ago.
The continents merged into a single supercontinent known as Pangaea during the Paleozoic and Mesozoic eras, specifically in the late Paleozoic era around 300 million years ago. This supercontinent began to break apart during the Mesozoic era, leading to the formation of the current continents.
About 300 million years ago the continents collided to form the 'supercontinent' of Pangea. It was the PALEOZOIC era.
Warm, shallow seas covered most of Earth's surface near the end of the Paleozoic Era.
Pangaea, the supercontinent, formed about 335 million years ago during the late Paleozoic era. It was the result of the collision and merging of several smaller continents.
Mountains first appeared in the Paleozoic Era.
The permian period was the end of the paleozoic era.