Biology:Archidesmus

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Short description: Extinct genus of millipedes

Archidesmus
Temporal range: Lower Devonian
Archidesmus macnicoli 02.png
Archidesmus macnicoli fossil illustration, anterior end is towards the left.
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Order: Archidesmida
Family: Archidesmidae
Scudder, 1885
Genus: Archidesmus
Peach, 1882
Type species
Archidesmus macnicoli
Species
  • A. macnicoli
  • A. loganensis (debated)

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.[1] A second species, A. loganensis was also described by Peach[2] but its status as a valid species- or even a myriapod- is debated.[3]

A. macnicoli illustrations

References

  1. Peach, B. N. (1882). "On some fossil myriapods from the Lower Old Red Sandstone of Forfarshire". Proceedings of the Royal Physical Society 7: 177–188. https://www.biodiversitylibrary.org/item/54634#page/185/mode/1up. 
  2. Peach, B. N. (1899). "On some new myriapods from the Palaeozoic rocks of Scotland". Proceedings of the Royal Physical Society 14: 113–126. https://www.biodiversitylibrary.org/page/16111199#page/125/mode/1up. 
  3. Wilson, Heather M.; Anderson, Lyall I. (2004). "Morphology and taxonomy of Paleozoic millipedes (Diplopoda: Chilognatha: Archipolypoda) from Scotland". Journal of Paleontology 78 (1): 169–184. doi:10.1666/0022-3360(2004)078<0169:MATOPM>2.0.CO;2. 

Wikidata ☰ Q17512579 entry