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Leptaena dejecta

Strophomenata - Strophomenida - Rafinesquinidae

Taxonomy
Dactylogonia dejecta was named by Baarli (1995). Its type specimen is PMO 105.231, a valve (The inner mould of brachial valve), and it is a 3D body fossil. Its type locality is Skytterveien, 11 meters above base of Leangen Member, which is in an Aeronian marine mudstone/sandstone in the Solvik Formation of Norway.

It was recombined as Leptaena dejecta by Musteikis and Cocks (2004).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1995Dactylogonia dejecta Baarli pp. 34 - 35 figs. Pl. 11 : 1, 5, 8, 11, 15- 16
2004Leptaena dejecta Musteikis and Cocks p. 460

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyRafinesquinidaeSchuchert 1893
subfamilyLeptaeninaeHall and Clarke 1894
genusLeptaenaDalman 1828
speciesdejecta()

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. G. Baarli 1995This is a Dactylogonia species with subparallel, anteriorly directed musde-bounding ridges in the ventral interior valve and smooth teeth braced by tiny accessory plates. The ventral valve shows sharp geniculation, while the dorsal valves are concave. The cardinalia are delicate, and the inner trans-musde septa are long, low, thin, and subparallel, bordering the median side of the anterior muscle scars. The outer trans-musde septa are very short and dose to the inner septa.