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Leptaena (Leptaena) rhomboidalis

Strophomenata - Strophomenida - Rafinesquinidae

Taxonomy
Anomites rhomboidalis was named by Wahlenberg (1818) [Neotype selected by Kelly (1967: 594, pl. 98 fig. 1) This species originally was described by Wilckens but in a pre-Linnean work. So, it often is attributed to Wilckens rather than Wahlenberg.]. Its type specimen is BU 878 and is a 3D body fossil.

It was recombined as Conchita rhomboidalis by Wilckens (1769); it was recombined as Leptaena (Leptaena) rhomboidalis by Rubel (2011); it was recombined as Leptaena rhomboidalis by Girty (1899), Reed (1952), Kelly (1967), Bassett and Cocks (1974), Hoel (2005) and Hoel (2014).

Sister species lacking formal opinion data

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Synonymy list
YearName and author
1769Conchita rhomboidalis Wilckens p. 77 figs. pl. 8 f. 43-44
1818Anomites rhomboidalis Wahlenberg p. 65 figs. pl. 8 f. 43-44
1821Anomites rhomboidalis Wahlenberg p. 65 figs. pl. 8 f. 43-44
1899Leptaena rhomboidalis Girty p. 525
1952Leptaena rhomboidalis Reed
1967Leptaena rhomboidalis Kelly p. 594 figs. pl. 98 figs. 1-3
1974Leptaena rhomboidalis Bassett and Cocks p. 14 figs. pl. 2 figs. 7-8
2003Leptaena rhomboidales May
2005Leptaena rhomboidalis Hoel pp. 265 - 268 figs. 2, 10, 11A
2011Leptaena (Leptaena) rhomboidalis Rubel
2014Leptaena rhomboidalis Hoel figs. 1b,h,l,m; 3b-d; 4a-d; 8a,i

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
RankNameAuthor
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyRafinesquinidaeSchuchert 1893
subfamilyLeptaeninaeHall and Clarke 1894
genusLeptaenaDalman 1828
subgenusLeptaenaDalman 1828
speciesrhomboidalis(Wahlenberg 1818)

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
F. B. Kelly 1967Semi-oval to rhomboid, with fine radial costellae and very deeply incised rugae. Foramen large, truncating the pseudodeltidium which covers the entire delthyrium. Ventral muscle scar sub-pentagonal; adductors poorly defined, not enclosed by adductors.
O. A. Hoel 2005Species of Leptaena with very high and steep rugae separated by deep interspaces. Large foramen. Adductor scars in the ventral valve broad. Cardinal process lobes divergent.