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Carbonocoryphe depressa

Trilobita - Proetida - Proetidae

Proetus roundyi depressus was named by Girty (1926).

It was recombined as Griffithidella depressus by Hessler (1965); it was recombined as Griffithidella (Griffithidella) depressa by Hahn and Hahn (1970); it was recombined as Carbonocoryphe depressa by Brezinski (1998).

Synonymy list
YearName and author
1926Proetus roundyi depressus Girty figs. plate 6; figures 16a- 17b
1965Griffithidella depressus Hessler p. 255 figs. plate 38, figures 1, 4
1970Griffithidella (Griffithidella) depressa Hahn and Hahn p. 197
1998Carbonocoryphe depressa Brezinski pp. 723 - 724 figs. 4.1-4.4

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyProetidaeSalter 1864
genusCarbonocorypheRichter and Richter 1950
speciesdepressa(Girty 1926)

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 very small, 3 to 4 mm wide, vaulting and relief very low, outline rounded, 0.48 times as long as wide. Axis short, 0.67 total pygidial length, acutely terminated posteriorly, not reaching posterior border, 0.33 times the maximum anterior pygidial width, composed of 7 or more rings. In longitudinal profile posterior portion of axis tapers sharply downward. Pleural fields composed of 7, perhaps 8, ribs becoming increasingly obscure to posterior. Anterior 2 to 3 pleurae composed of anterior and posterior bands of nearly equal width and length, but posterior bands slightly higher in elevation. Posteriorly, posterior band more distinct than anterior band and reaching further toward margin. Border indistinct laterally becoming narrow, well-defined behind axis.