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Carbonocoryphe planucauda

Trilobita - Proetida - Proetidae

Carbonocoryphe planucauda was named by Brezinski (1998) [= Griffithidella depressus var. depressus Hessler, 1965, plate 38, figures 2, 3, 5, 9.]. Its type specimen is CM 35785, a pygidium, and it is a 3D body fossil.

Synonymy list
YearName and author
1998Carbonocoryphe planucauda Brezinski pp. 723 - 724 figs. 4.5-4.9

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyProetidaeSalter 1864
genusCarbonocorypheRichter and Richter 1950

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

D. K. Brezinski 1998Pygidium flattened, smooth, axial rings flat and narrow, ring furrows shallow. Axis conical in outline. Border broadens posteriorly with extensions of the pleural bands present behind axial terminus.

Pygidium outline semicircular, relief and vaulting very low. Axis less strongly tapering posteriorly, rounded in transverse profile, gently descending, straight in longitudinal profile, acutely rounded at terminus, composed of 12 to 13 rings. Rings smooth, flattened, broad (longitudinal); ring furrows shallow, narrow, straight. Pleural fields mildly convex in transverse profile, flat adjacent to dorsal furrow, composed of 9 to 10 ribs which extend behind axial terminus. Ribs composed of two bands of near equal width; anterior band lower than posterior band. Posterior band extends onto border and becomes recurved on posterior ribs. Interpleural furrows narrow, distinct on anterior ribs, becoming indistinct posteriorly; pleural furrows broader, deeper than interpleural furrows. Border indistinct, gently inclined to margin in front, becoming broader, less steeply sloping behind axial terminus, exhibits faint extensions of the pleural ribs, rounded at margin