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Goticardia gogoense
Taxonomy
Conocardium gogoense was named by Fletcher (1943) [= Conocardium sp. Tschernischeff (= Tschernischew) 1885 p. 25-26, 65, 87 pl. 5 f. 45a-c.]. Its type specimen is C.57, a shell, and it is a 3D body fossil.
It was corrected as Conocardium gogoensis by Cook and Camilleri (2001); it was recombined as Goticardia gogoense by Rogalla and Amler (2006), Wagner (2023).
It was corrected as Conocardium gogoensis by Cook and Camilleri (2001); it was recombined as Goticardia gogoense by Rogalla and Amler (2006), Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Conocardium gogoense Fletcher pp. 238 - 239 figs. pl. 13 f. 14-16 |
| 2001 | Conocardium gogoensis Cook and Camilleri p. 405 fig. 5A,B |
| 2006 | Goticardia gogoense Rogalla and Amler pp. 374 - 375 fig. 17 |
| 2023 | Goticardia gogoense Wagner p. S3067 |
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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.
†Goticardia gogoense Fletcher 1943
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. O. Fletcher 1943 | Shell small, sub-angularly ovate, equivalve, with a rounded, slightly flattened anterior portion, and widely gaping, conical, posteriorly.
Valves convex, with the greatest convexity in the median region. Umbo small, slightly incurved. Hinge-line straight, sunk below the rounded superior margins. Well marked lunule, ligament external. Anterior margin produced to form the rostrum, slightly above the hinge-line, gently curved qelow. Inferior margin narrow, rounded. Posterior margin oblique, practically straight, meeting the hinge margin at an angle of about 45°. Anterior keel fairly prominent, not curved, and formed by a fold or thickening of one of the ribs. It is situated in the centre of the median region and reaches to the lowest portion of the shell. The anterior cordiform slope, anterior of the keel, is large and hardly differentiated from the remainder of the valve, and is slightly flattened and concave near the hinge margin. Ornamented by 13-14 close, low rounded ribs originating at the apex of the beak and curving away from the anterior keel. Median region narrow, ornamented by four coarse ribs with wide interspaces. The posterior slope of the shell is horizontally oblique, convex, ornamented by thirteen ribs, similar in appearance, with interspaces as wide as or wider than the ribs. The conical, aliform protuberance not well defined. Along the gaping inferior margin the radiating ribs continue into the interior of the valve, strengthening them considerably. Shell widely gaping posteriorly. | |
| A. G. Cook and N. Camilleri 2001 | Moderately inflated, up 7mm long, and 6.5mm high, umbones well above dorsal margin. Antero-dorsum straight, rostrum not preserved. Posterior face at 30 from horizontal. Anterior surface with wide numerous flattened ribs. Posterior at least partially ornamented by finer ribs. Fine detail lacking due to coarse silicification. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available