page_title: Archidesmus
hierarchical_section_title: Archidesmus
caption_attribution_description: English: Archidesmus macnicoli, a prehistoric millipede from the Devonian of Fig. 2. Archidesmus macnicoli, From specimen presented to C. W. Peach by Walter MacNicol, Esq., Tealing, near Dundee. Body length 47 mm Locality — Carmyllie, near Arbroath, Forfars Fig. 2a. portion of above magnified Fig. 2d. Leg of fig. 2 magnified to show spines at the articulations.
context_page_description: Archidesmus is an extinct millipede genus from the Lower Devonian Old Red Sandstone of the United Kingdom. It is the only member of the taxonomic family Archidesmidae. Individuals were up to 5 cm long, and had 60 to 80 body segments decorated with tubercles on the upper surface, and most segments possessed wing-like keels extending to the side. The type species Archidesmus macnicoli was described by British paleontologist Benjamin Peach in 1882. A second species, A. loganensis was also described by Peach but its status as a valid species- or even a myriapod- is debated.
context_section_description: Archidesmus is an extinct millipede genus from the Lower Devonian Old Red Sandstone of the United Kingdom. It is the only member of the taxonomic family Archidesmidae. Individuals were up to 5 cm (2.0 in) long, and had 60 to 80 body segments decorated with tubercles (bumps) on the upper surface, and most segments  possessed wing-like keels (paranota) extending to the side.  The type species Archidesmus macnicoli was described by British paleontologist Benjamin Peach in 1882. A second species, A. loganensis was also described by Peach but its status as a valid species- or even a myriapod- is debated.
caption: A. macnicoli illustrations
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