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Kjaerina (Villasina) pyrenaica
Taxonomy
Kjaerina (Villasina) pyrenaica was named by Colmenar (2016). Its type specimen is MPZ 2015/1372, a valve (internal mould of ventral valve), and it is a 3D body fossil. Its type locality is Seo de Urgel, which is in a Katian marine limestone in the Cava Formation of Spain.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Kjaerina (Villasina) pyrenaica Colmenar pp. 298 - 300 fig. 10A–H |
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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.
†Kjaerina (Villasina) pyrenaica Colmenar 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Colmenar 2016 | Species of Kjaerina (Villasina) with ventral valve disc moderately convex. Dorsal valve disc flat to concave with shallow median sulcus; both, ventral and dorsal valve trails, inclined with respect to disc about 90°; chilidium unknown. Radial ornament with 4–5 ribs per 2 mm at 10 mm anteromedially from umbo; prominent median rib absent; strong and irregular rugae covering the entire disc, better developed posterolaterally. Muscle bounding ridges curved interiorly; ventral muscle field well impressed, elongate, flabelliform. Cardinal process lobes, plate-like in young specimens, engrossed postero ventrally in adult ones; notothyrial platform strong; broad median ridge. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Katian or 453.00000 to 445.20000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc - Katian | Italy (Sardinia) | Kjaerina pyrenaica (196925) | |
| Katian | Spain (Gerona) | Kjaerina pyrenaica (type locality: 196924) |