| Abstract |
Lobetelson mclaughlinae n. gen., n. sp. from the well-known Mazon Creek faunas
of the Pennsylvanian (Carboniferous) of northeastern Illinois, USA, shares
features in common with Belotelson magister (Packard, 1886), such as eight
pairs of uniramous reptant thoracopods and a generalized caridoid body plan.
Th e similarities are such that specimens of both species originally were mixed
in museum and private collections of the fauna. However, L. mclaughlinae
n. gen., n. sp. is distinguished by its more gracile thoracopods, extremely long
rostrum (at least equal in length to the carapace), and a wide tail fan formed
by broad lobate uropodal rami. In contrast, B. magister is now understood to
possess more robust thoracopods, with a relatively short rostrum, and very
styliform uropodal rami. |
