Archaeopteris macilenta

"Archaeopteris macilenta Temporal range: Late Devonian to Early Carboniferous PreЄ Є O S D C P T J K Pg N
Reconstruction of Archaeopteris macilenta from the Late Devonian Walton Formation, Hancock New York
Scientific classification
Kingdom:	Plantae
Division:	†Progymnospermophyta
Order:	Archaeopteridales
Family:	Archaeopteridaceae
Genus:	Archaeopteris

Archaeopteris macilenta is distinguished from other species of the genus by leaves which are divided into narrow segments at their tips. Sporangia were bone of different parts of the branches with ordinary foliage leaves. Archaeopteris macilenta leaves and fertile shoots are attached to wood which when permineralized is called Callixylon newberryi