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Joviatrypa brabyla
Taxonomy
Joviatrypa brabyla was named by Copper (1995). Its type specimen is Gs79476, a shell, and it is a 3D body fossil. Its type locality is A0859. 7.9 kilometers east of Box River, which is in an Aeronian deep subtidal limestone/shale in the Jupiter Formation of Canada. It is the type species of Joviatrypa.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Joviatrypa brabyla Copper pp. 859 - 851 figs. 13.22-13.28, 15, 16 |
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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.
†Joviatrypa brabyla Copper 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Copper 1995 | Relatively large shell, averaging 25-35 mm wide, 20-25 mm deep, maximum width and depth at midshell; highly globose, hypercline area obscured by strongly incurved beak; foramen commonly enlarged into umbo, or covered by beak incurvature, leaving slit-like gape; hinge short; hinge corers highly rounded; ventral shoulderline relatively straight; shoulder angle ~110-120 degrees; anterior commissure weakly plicate or - rectimarginate; internally, both valves relatively thickwalled; pedicle callist carrying deep central groove, giving rise anteriorly to a small, rounded adductor scar; wide but short, raised diductor scars; prominently raised, ventral, straight vascular canals; gonadal pits deep; in dorsal valve, socket plates thin but prominent; inner socket ridges strong; crura thick and strong at base; jugal processes terminating in blunt, box-like plates; spiralia dorsally directed with weak tilt to center; ~15- 17 whorls in large shells. |