[Does so]

"...Unearthed in upstate New York, the fossils were among the first animals to live on land in North America..."

There were big chunks of Africa "stuck" in North America at the time.

[ETL]

There were big chunks of Africa "stuck" in North America at the time.

No, not at that time. The collision with Africa which led to the formation of the supercontinent of Pangea (also spelled 'Pangaea') didn't come until about 250 million years ago. The formations which contained the fossils are about 380 million years old.

http://www.scotese.com/earth.htm