Cowiedesmus

Cowiedesmus; Temporal range: Wenlock–Ludlow PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Myriapoda
Class:	Diplopoda
Subclass:	Chilognatha
Superorder:	†Archipolypoda
Order:	†Cowiedesmida
Family:	†Cowiedesmidae
Genus:	†Cowiedesmus; Wilson & Anderson, 2004
Type species
	Cowiedesmus eroticopodus;

Cowiedesmus is an extinct millipede genus known from the middle Silurian of Scotland,^[1] and is one of the earliest known land animals.^[2] Cowiedesmus was about 4 cm (1.6 in) long and characterized by a greatly enlarged pair of legs on the 8th segment which may have been used in clasping females or functioned as gonopods (modified legs used to insert sperm during mating). Coweiedesmus is distinct enough from other living and fossil millipedes to be placed in its own order, Cowiedesmida. The only known species, C. eroticopodus, was described in 2004.^[1]

The name Cowiedesmus references the Cowie Formation, a geological formation at Cowie Harbor, near the village of Stonehaven, Scotland, where the fossil was found and desmus, a common root word in millipede nomenclature meaning "bond" or "bridge". The specific epithet eroticopodus means "erotic foot".^[1]

References[]

^ ^a ^b ^c 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.
^ Russell Garwood & Gregory Edgecombe (2011). "Early terrestrial animals, evolution and uncertainty". . 4 (3): 489–501. doi:10.1007/s12052-011-0357-y.

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[Wilson&Anderson2004-1] 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.

[Garwood-2] Russell Garwood & Gregory Edgecombe (2011). "Early terrestrial animals, evolution and uncertainty". . 4 (3): 489–501. doi:10.1007/s12052-011-0357-y.

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