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Svobodaina
Taxonomy
Svobodaina was named by Havlicek (1951) [Sepkoski's age data: O Llde O Cara-u Sepkoski's reference number: 1,25,36].
It was assigned to Orthida by Sepkoski (2002); and to Heterorthidae by Williams et al. (2000) and Colmenar et al. (2014).
It was assigned to Orthida by Sepkoski (2002); and to Heterorthidae by Williams et al. (2000) and Colmenar et al. (2014).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Svobodaina Havlicek |
| 2000 | Svobodaina Williams et al. p. 804 |
| 2002 | Planoharknessella Sepkoski |
| 2002 | Svobodaina Sepkoski |
| 2014 | Svobodaina Colmenar et al. p. 204 |
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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.
G. †Svobodaina Havlicek 1951
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†Svobodaina armoricana Babin and Mélou 1972
†Svobodaina barnumosa Havlicek 1981
†Svobodaina ellipsoides Barrande 1848
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Invalid names: Svobodaina inclyta Barrande 1879 [synonym]
†Svobodaina feisti Havlicek 1981
†Svobodaina havliceki Villas 1985
†Svobodaina suburbana Barrande 1879
Invalid names: Planoharknessella [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Colmenar et al. 2014 | Gently to strongly dorsibiconvex shell, transversely elliptical to circular in outline and with a short hinge line. Ornamentation finely costellate with ribs curved posterolaterally to intersect the hinge line. Ventral muscle field large, with flabellate diductor scars with short and rectangular adductor scars normally not enclosed anteriorly by diductors. Dorsal adductor scars quadripartite, with their posterior pair smaller than the anterior pair. Cardinal process strong with ovoid base and with trilobed myophore. |