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Article
Charles H. Wellman, Auteur ; Dianne Edwards, Auteur ; Lindsey Axe, AuteurDyads, interpreted as cryptospore permanent dyads, are reported from sporangia and spore masses recovered from fluviatile deposits of Lochkovian (Early Devonian) age from the Welsh Borderland. The morphology, anatomy and ultrastructure of the sp[...]
Article
Dianne Edwards, Auteur ; Charles H. Wellman, Auteur ; Lindsey Axe, AuteurPrior to the mid-Silurian, evidence for the earliest embryophytes comes from dispersed spores, particularly permanent tetrads, there being no fossils showing gross morphology or anatomy of the producers. The fragmentary coalified mesofossils des[...]
