This could be possible if the life form species had a wide dispersal ability or if their remains were carried by geological processes like plate tectonics or ocean currents to different continents over time.
Yes, you are correct. Wide dispersal abilities in life forms such as flying or floating organisms could allow them to reach different continents and potentially establish populations there. For example, birds are known for their ability to migrate over large distances, which enables them to disperse to different continents.
In addition, geological processes such as plate tectonics could also contribute to the dispersal of life forms. Over time, continents can drift apart or collide, creating new land bridges or separating existing land masses. This movement can facilitate the migration of species between continents. The formation of the Isthmus of Panama, for instance, connected the Americas and allowed the exchange of species between North and South America.
Moreover, ocean currents can play a significant role in dispersing organisms across different continents. These currents act as natural conveyer belts, carrying organisms and their remains to distant locations. For instance, the Kuroshio Current in the Pacific Ocean is known for moving marine organisms from east Asia to the western Pacific coast of North America.
It's important to note that while these mechanisms can explain the dispersal of life forms across continents, other factors such as ecological suitability and adaptability to new environments also play a crucial role in establishing successful populations in different places.