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Bellimurina tenuicorrugata
Taxonomy
Bellimurina tenuicorrugata was named by Reed (1917) [Lectotype designated by Williams (1962).]. Its type specimen is B.73305 and is a 3D body fossil.
It was recombined as Rafinesquina (Playfairia) deltoidea tenuicorrugata by Reed (1917).
It was recombined as Rafinesquina (Playfairia) deltoidea tenuicorrugata by Reed (1917).
Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Bellimurina tenuicorrugata Reed p. 867 figs. Plate XII, figs. 2, 3 |
| 1917 | Rafinesquina (Playfairia) deltoidea tenuicorrugata Reed p. 867 figs. Plate XII, figs. 2, 3 |
| 1962 | Bellimurina tenuicorrugata Williams pp. 205 - 206 figs. Pl. XX, figs. 12-15, 18 |
| 2014 | Bellimurina tenuicorrugata Candela and Harper pp. Supplement 1 |
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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.
†Bellimurina tenuicorrugata Reed 1917
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Large, subrectangular, concavo-convex Bellimurina with a rounded, dorsally directed geniculation at over 20 mm. anterior to the ventral umbo and a long trail thrown into low plicae with a wave-length of about 6 mm., visceral portion of pedicle valve gently and evenly convex about one-fifth as deep as long, that of the brachial valve plane or slightly convex; radial ornamentation consisting of finely cancellated, rounded costellae, about 7 per millimetre antero-medianly on the geniculate zone, divided into sectors by thickened costae and costellae, about 3 mm. apart, at the geniculation; visceral surfaces additionally ornamented by asymmetrical rugae, with a wave-length of 1 mm., short and irregularly disposed umbonally but tending to be arranged concentrically towards the geniculate zone although still interrupted by the thickened costellae; both interareas well developed with a wide, apical pseudodeltidium in the longer, apsacline, ventral one, chilidium strongly arched and massive; dental lamellae short and widely divergent, teeth massive, crenulated, muscle-scar elongately quadrate about one-haft as long as the visceral disc, contained laterally by a pair of subparallel ridges extending anteriorly from the dental lamellae, pallial sinus pattern probably saccate with slightly divergent vascula media presumably following the zone of geniculation and giving rise to long, closely spaced branches feeding the trail; cardinal process lobes elongate, only slightly elevated above the notothyrial platform so that the pustulose diductor surfaces are directed postero-ventrally, socket ridges low, curved, divergent and bounding large crenulate sockets, median ridge wide and low extending from the notothyrial platform for about one-quarter of the length of the visceral disc, adductor field vaguely defined but associated with two pairs of narrowly divergent septa. |
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Burrellian or 456.60000 to 452.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burrellian | United Kingdom (Scotland) | Bellimurina tenuicorrugata (165043) |