Reconstruction of Archaeopteris macilenta from the Late Devonian Walton Formation, Hancock New York
Scientific classification
Kingdom:
Plantae
Clade:
Tracheophytes
Class:
†Progymnospermopsida
Order:
†Archaeopteridales
Family:
†Archaeopteridaceae
Genus:
†Archaeopteris
Species:
†A. macilenta
Binomial name
†Archaeopteris macilenta
Lesq.
Archaeopteris macilenta is distinguished from other species of the genus by leaves which are divided into narrow segments at their tips. Sporangia were borne on 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.[1][2]Archaeopteris is retained in the class Progymnospermopsida which includes plants with gymnospermous anatomy and pteridophytic reproduction.[3]
^Beck, CB (1960). "The identity of Archaeopteris and Callixylon". Brittonia. 12 (4): 351–368. Bibcode:1960Britt..12..351B. doi:10.2307/2805124. JSTOR 2805124. S2CID 27887887.
^Beck, CB (1962). "Reconstruction of Archaeopteris and further consideration of its phylogenetic position" (PDF). American Journal of Botany. 49 (4): 373–382. doi:10.2307/2439077. hdl:2027.42/141981. JSTOR 2439077.
^Carluccio, Leeds M.; Hueber, Francis M.; Banks, Harlan P. (1966). "Archaeopteris Macilenta, Anatomy and Morphology of Its Frond". American Journal of Botany. 53 (7): 719–730. doi:10.1002/j.1537-2197.1966.tb14029.x. ISSN 1537-2197.
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