By the Late Devonian 370 Ma, trees such as Archaeopteris were so abundant that they changed river systems from mostly braided to mostly meandering, because their roots bound the soil firmly.
No Devoniano tardío, hai 370 Ma, as árbores como Archaeopteris eran tan abondosas que fixeron cambiar os sistemas fluviais de ser case todos de tipo anastomosado a maioritariamente con meandros, porque as súas raíces agarraban o solo firmemente.