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Carbonocoryphe depressa
Taxonomy
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).
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).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1926 | Proetus roundyi depressus Girty figs. plate 6; figures 16a- 17b |
1965 | Griffithidella depressus Hessler p. 255 figs. plate 38, figures 1, 4 |
1970 | Griffithidella (Griffithidella) depressa Hahn and Hahn p. 197 |
1998 | Carbonocoryphe depressa Brezinski pp. 723 - 724 figs. 4.1-4.4 |
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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.
†Carbonocoryphe depressa Girty 1926
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Diagnosis
Reference | Diagnosis | |
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D. K. Brezinski 1998 | Pygidium 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. |