and when they have spread, and are discovered in a geological formation, they appear as if suddenly created there, and will be simply classed as new species. Most formations have been intermittent in their accumulation;
eta hedabanatu ondoren formazio geologikoren batean aurkitzen ditugunean, hantxe bertan bat-batean sortu izan balira bezala agertzen dira, eta besterik gabe espezie berritzat sailkatuko dira.