Arionellus Barrande, 1850, is a disused name for a genus of trilobite. The name Arionellus was a replacement for Arionides Barrande, 1847, itself a replacement for Arion Barrande, 1846, which was preoccupied because Férussac had already used it in 1819 for a genus of slugs.
Agraulos had already been proposed as replacement for Arion by Hawle and Corda in 1847, but Barrande unjustly considered it a homonym of Agraulis, a butterfly named by Boisduval in 1836.[1]
The species of Arionellus have now been reassigned to the following genera.[2]
- A. bipunctatus = Croixana bipunctata
- A. ceticephalus = Agraulos ceticephalus
- A. convexus = Camaraspis convexa
- A. cylindricus = Keithiella cylindrica
- A. oweni = Modocia oweni
- A. primaevus = Strenuaeva primaeva
- A. pustulatus = Glaphurus pustulatus
- A. texanus = Tricrepicephalus texanus
- A. tripunctatus = Tricrepicephalus tripunctatus
References edit
- ^ Meek, F.B.; Hayden, F.V. (1865). "Palaeontology of the upper Missouri – A Report upon Collections made principally by the Expeditions under command of Lieut. G.K. Warren, U.S. Top. Egrs. in 1855 and 1856 – Invertebrates, Part I". Smithsonian Contributions to Knowledge. 14 (1): 7–8.
- ^ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. O207, O250, O256, O272, O278, O298, O306, O322. ISBN 0-8137-3015-5.
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