PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Goticardia gogoense

Rostroconchia - Conocardiida - Hippocardiidae

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).

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

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.