While the exact location of their origin is uncertain, fossil evidence suggests that conifers first appeared in the Northern Hemisphere, possibly in Laurasia, the supercontinent that existed during the Permian and Triassic periods.

Here's what we know:

* Early conifer fossils have been found in various locations, including:

* North America: The oldest known conifer fossils have been found in North America, specifically in the Appalachian Mountains and the Black Hills of South Dakota.

* Europe: Fossil evidence indicates that conifers were present in Europe during the Permian period.

* Asia: Conifer fossils have also been discovered in Asia, specifically in China.

* Laurasia is the most likely origin point because:

* It was a large landmass that spanned much of the Northern Hemisphere.

* The climate of Laurasia during the Permian period was favorable for the development of conifers.

While the exact location remains a subject of debate, it's clear that conifers evolved during the Permian period, with evidence pointing towards their origin in the Northern Hemisphere, possibly in Laurasia.