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Apotocardium lanterna

Rostroconchia - Conocardiida - Bransoniidae

Taxonomy
Conocardium lanterna was named by Branson (1965). It is not a trace fossil.

It was recombined as Pseudoconocardium lanterna by Pojeta and Runnegar (1976), Bonem (1982), Hoare et al. (1982) and Wagner (1997); it was recombined as Apotocardium lanterna by Hoare et al. (2002), Kues et al. (2002), Rogalla et al. (2003) and Wagner (2017).

Synonymy list
YearName and author
1965Conocardium lanterna Branson p. 247 figs. f. 1-9
1976Pseudoconocardium lanterna Pojeta and Runnegar p. 74 figs. pl. 32 f. 1-2; pl. 40 f. 3-14; pl. 41 f
1982Pseudoconocardium lanterna Bonem
1982Pseudoconocardium lanterna Hoare et al. pp. 124 - 128 figs. pl. 1 f. 22-27
1997Pseudoconocardium lanterna Wagner
2002Apotocardium lanterna Hoare et al. pp. 15-19 figs. f. 1.1-1.5, 1.9-1.12, 1.16-1.19; 9.4-9.3
2002Apotocardium lanterna Kues et al. p. 129 fig. 4V
2003Apotocardium lanterna Rogalla et al. pp. 657 - 661 figs. f. 1-13
2017Apotocardium lanterna Wagner p. 3117

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classRostroconchia
orderConocardiida()
superfamilyConocardioideaMiller 1889
familyBransoniidae
genusApotocardium
specieslanterna()

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.

Diagnosis
ReferenceDiagnosis
B. S. Kues et al. 2002The shell body is moderately inflated and grades without significant discontinuity into the subtriangular snout region. The body displays seven major radial ribs, six of which begin near the beak and one of which was intercalated at about midheight. The ribs are crossed by much finer, very closely spaced growth lines. The interspaces are about twice the width of a rib near the ventral margin. The posterior rib is slightly enlarged and marks a sharp break with the short rostral area. Approximately 13 finer radial ribs are present on the snout, and these are crossed by strong, irregular, comarginal growth lines of nearly equal strength. The ventral margin of the snout region displays a moderate gape, and several stout denticles are preserved along these margins.