Monodechenella magna ( Hahn & Hahn 1972 )

Vanderlaan, Tegan A. & Ebach, Malte C., 2015, A review of the Carboniferous and Permian trilobites of Australia, Zootaxa 3926 (1), pp. 1-56 : 21-22

Monodechenella magna ( Hahn & Hahn 1972)

1892a Phillipsia grandis Etheridge Jr. ; p. 128, pl. 21, fig. 5. 1892b Phillipsia sp. indet.; Etheridge Jr., p. 215.

1917 Phillipsia grandis ; Etheridge Jr., p. 11, pl. 3, fig. 3.

1918 Phillipsia grandis ; Mitchell, p. 463, pl. 47, fig. 2, pl. 50, figs. 1–3. 1972 Linguaphillipsia ? magna Hahn & Hahn ; p. 369, 372. 1984 Conophillipsia magna ; Engel & Morris, p. 36–39, fig 9.

Lectotype. AMF35852 (part internal mould of pygidium). Locality. Type—CN.

Emended diagnosis. Concave pygidial border; 17+ axial rings; 15+ pleural ribs; axis rounded in section, with a shallow lateral furrow on either side, creating small lateral lobes.

Remarks. The diagnosis of Engel & Morris (1984) is emended. Axial ring count is 17 or above, but due to preservation it is unclear if there are exactly 19 as originally stated by Engel & Morris (1984). Engel & Morris (1984) also stated that the species is moderately convex, though the specimens used for identification appear flat. There are also shallow lateral furrows on the axial region, creating the small lateral lobes mentioned by Engel & Morris (1984).