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Kullervo parva
Taxonomy
Kullervo parva was named by Cooper (1956). Its type specimen is USNM 110148a, a valve (brachial valve), and it is a 3D body fossil. Its type locality is Porterfield Quarry, 5 miles northeast of Saltville, which is in an Ashbyan reef, buildup or bioherm limestone in the Edinburg Formation of Virginia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Kullervo parva Cooper pp. 527 - 528 figs. Plate 80, B, figures 7-11 |
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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.
†Kullervo parva Cooper 1956
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Cooper 1956 | Small, the largest specimen in the collection attaining a width of slightly more than ΒΌ inch. Wider than long with acute cardinal extremities in the adult, but in young specimens the extremities are drawn into sharp ears. Pedicle valve hemipyramidal in lateral profile with a fairly prominent median sulcus extending from the beak to the anterior margin. Flanks bounding the sulcus narrowly rounded and the area to the cardinal extremities slightly concave. Spondylium large and shallow with a fairly deep median groove bordered by flat shelves on either side. Median septum short. Pseudodeltidium appearing as a vestige of that plate at the apex.
Brachial valve convex in lateral profile and broadly convex in anterior profile. Sulcus deep, extending from the beak to the anterior margin and drawn into a short tongue anteriorly in the direction of the pedicle valve. Flanks bounding sulcus moderately convex with steep slopes to the posterolateral extremities but with more gentle anterior slopes, Cardinalia ponderous. Brachiophores widely divergent and supported by thick lateral swellings of callus. Cardinal process a simple ridge. Exterior of both valves marked by narrowly rounded costellae. |