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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, a shell, and it is a 3D body fossil.

It was recombined as Conchita rhomboidalis by Wilckens (1769); it was recombined as Leptaena quadrilatera by Shaler (1865); it was recombined as Strophomena rhomboidalis by Billings (1866), Walcott (1884); 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), Hoel (2014).

Sister species lacking formal opinion data
L. cuyana, L. dicax, L. isidreana, L. khantaica, L. qianbeiensis, L. redunca, L. rhomboidalls, L. rugosa, L. xyziltchigaensis, L. ledetensis
Entered
by P. Wagner on 2015-06-01; modified by B. Kröger on 2018-03-22

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
1865Leptaena quadrilatera Shaler
1866Strophomena rhomboidalis Billings p. 41
1884Strophomena rhomboidalis Walcott p. 118
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()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyRafinesquinidaeSchuchert 1893
subfamilyLeptaeninaeHall and Clarke 1894
genusLeptaenaDalman 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.

†Leptaena rhomboidalis Wahlenberg 1818
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†Leptaena quadrilatera Shaler 1865
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.
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: marineuc
Locomotion: stationaryg
Attached: yesp
Life habit: epifaunalg
Diet: suspension feederg
Vision: blindc
Created: 2009-04-13 09:55:02
Modified: 2018-11-11 09:56:39
Source: g = genus, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Hendy et al. 2009, Aberhan et al. 2004

Age range: base of the Rhuddanian to the top of the Givetian or 443.10000 to 382.31000 Ma

Collections (265 total)


Time interval Ma Country or state Original ID and collection number
Rhuddanian443.1 - 440.5Canada (Ontario) Leptaena rhomboidalis (447 173186)
Rhuddanian - Aeronian443.1 - 438.6Canada (Quebec) Leptaena rhomboidalis (11317)
Rhuddanian - Aeronian443.1 - 438.6USA (Iowa) Leptaena rhomboidalis (26860)
Alexandrian443.1 - 438.1Canada (Québec) Leptaena rhomboidalis (25153 25154)
Llandovery443.1 - 432.9Canada (Québec) Leptaena rhomboidalis (24538 24539 24540 24543 25160)
Llandovery443.1 - 432.9Bolivia Leptaena rhomboidalis (25084)
Llandovery443.1 - 432.9Greenland Leptaena rhomboidalis (188528)
Llandovery443.1 - 432.9USA (New York) Leptaena rhomboidalis (77052 77054 77081)
Llandovery443.1 - 432.9USA (Iowa) Leptaena rhomboidalis (26713)
Llandovery443.1 - 432.9Canada (Quebec) Leptaena rhomboidalis (11321 11322)
Llandovery443.1 - 432.9USA (Indiana) Leptaena rhomboidalis (13291)
Llandovery - Wenlock443.1 - 426.7USA (New York) Leptaena rhomboidalis (12929 13045)
Llandovery - Wenlock443.1 - 426.7USA (New Hampshire) Leptaena rhomboidalis (537)
Alexandrian - Niagaran443.1 - 422.7Canada (Québec) Leptaena rhomboidalis (25155)
Llandovery - Ludlow443.1 - 422.7USA (West Virginia) Leptaena rhomboidalis (41085)
Llandovery - Ludlow443.1 - 422.7USA (Maryland) Leptaena rhomboidalis (41101)
Llandovery - Silurian443.1 - 419.62USA (Maine) Leptaena rhomboidalis (20657)
Silurian443.1 - 419.62USA (Indiana) Leptaena rhomboidalis (75266)
Aeronian440.5 - 438.6USA (New York) Leptaena rhomboidalis (24866 81892 81895)
Aeronian440.5 - 438.6Canada (Quebec) Leptaena rhomboidalis (11443)
Aeronian - Telychian440.5 - 432.9USA (New York) Leptaena rhomboidalis (82570)
Niagaran - Sheinwoodian439.4 - 430.6Canada (Québec) Leptaena rhomboidalis (25157)
Niagaran439.4 - 422.7Canada (Québec) Leptaena rhomboidalis (25156 25161)
Telychian438.6 - 432.9USA (New York) Leptaena rhomboidalis (77053 81820 81871 81878 81879 81909 81913 82546 82554 82558 82568 82569 82607 82608 83096 83097 83098 83106 83107)
Telychian438.6 - 432.9Canada (Quebec) Leptaena rhomboidalis (184837 184842 184851)
Telychian438.6 - 432.9USA (Iowa) Leptaena rhomboidalis (24963 25038 26763)
Telychian438.6 - 432.9United Kingdom (England) Leptaena rhomboidalis (49635 49638)
Telychian - Sheinwoodian438.6 - 430.6USA (Indiana) Leptaena rhomboidalis (26803)
Telychian - Sheinwoodian438.6 - 430.6USA (Iowa) Leptaena rhomboidalis (26769)
Telychian - Sheinwoodian438.6 - 430.6Canada (Québec) Leptaena rhomboidalis (25162)
Jaani433.5 - 431.2Estonia (Saare) Leptaena rhomboidalis (193604)
Sheinwoodian432.9 - 430.6USA (New York) Leptaena rhomboidalis (26863 26864 81785 81807 81814 81816 81875 81876 81907 81908 82502 82503 82509 82510 82511 82512 82513 82535 82536 82537 82545 82559 82560 82580 82581 82595 82597 83095)
Sheinwoodian432.9 - 430.6Sweden Leptaena rhomboidalis (476 61761 77533)
Sheinwoodian432.9 - 430.6USA (Indiana) Leptaena rhomboidalis (26805)
Sheinwoodian432.9 - 430.6Sweden (Gotland) Leptaena rhomboidalis (13524 13525 13591 13592 13594 13597 13598 13669 13670 13672 169869 169877 169879 169883 170487 192266)
Sheinwoodian - Homerian432.9 - 426.7Sweden (Gotland) Leptaena rhomboidalis (192267)
Wenlock432.9 - 426.7Russian Federation (Tyva) Leptaena rhomboidalis (78717 78720)
Wenlock432.9 - 426.7Mongolia Leptaena rhomboidalis (79643)
Wenlock432.9 - 426.7Afghanistan Leptaena rhomboidalis (79345)
Wenlock432.9 - 426.7Lithuania Leptaena rhomboidalis (207342 207343)
Wenlock432.9 - 426.7United Kingdom (Wales) Leptaena rhomboidalis (74666 74668)
Wenlock432.9 - 426.7Canada (Québec) Leptaena rhomboidalis (25158 25163 25164 25165)
Wenlock432.9 - 426.7United Kingdom (England) Leptaena rhomboidalis (24810 49640 49642)
Wenlock432.9 - 426.7Russian Federation Leptaena rhomboidalis (24749)
Wenlock432.9 - 426.7Greenland Leptaena rhomboidalis (188490)
Wenlock432.9 - 426.7USA (Iowa) Leptaena rhomboidalis (26702)
Wenlock432.9 - 426.7USA (New York) Leptaena rhomboidalis (12932 12933 12934 12935 12936 13047 13050 13051 13052 13053 13054 13072 26854 81781 81783 81784 81804 81805 81813 81840 81873 81885 81905 81906 81917 81920 81922)
Wenlock432.9 - 426.7USA (Tennessee) Leptaena rhomboidalis (26788)
Wenlock432.9 - 426.7Mongolia (The Mongolian Lake District) Leptaena rhomboidalis (13189)
Wenlock432.9 - 426.7USA (Indiana) Leptaena rhomboidalis (25876 25877 26778 26787 26789 26792 26794)
Wenlock432.9 - 426.7USA (Wisconsin) Leptaena rhomboidalis (13353)
Wenlock - Ludlow432.9 - 422.7USA (Illinois) Leptaena rhomboidalis (26770)
Wenlock - Pridoli432.9 - 419.62USA (California) Leptaena rhomboidalis (214346)
Jaagarahu431.2 - 428.6Estonia (Pärnu) Leptaena rhomboidalis (193605)
Jaagarahu431.2 - 428.6Estonia (Saare) Leptaena rhomboidalis (175058)
Homerian430.6 - 426.7Sweden (Gotland) Leptaena rhomboidalis (13599 13600 13671 13673)
Homerian - Gorstian430.6 - 425.0Sweden (Gotland) Leptaena rhomboidalis (13601 13602)
Homerian - Gorstian430.6 - 425.0Mexico (Tamaulipas) Leptaena rhomboidalis (5113 5114 5117 5119)
Gorstian426.7 - 425.0United Kingdom (England) Leptaena rhomboidalis (49643)
Gorstian426.7 - 425.0Sweden (Gotland) Leptaena rhomboidalis (13603)
Gorstian - Ludfordian426.7 - 422.7Sweden (Gotland) Leptaena rhomboidalis (13617)
Ludlow426.7 - 422.7China (Xinjiang) Leptaena rhomboidalis (25865)
Ludlow426.7 - 422.7Belarus Leptaena rhomboidalis (23658)
Ludlow426.7 - 422.7United Kingdom (Wales) Leptaena rhomboidalis (74670)
Ludlow - Elton426.7 - 421.3United Kingdom (Wales) Leptaena rhomboidalis (74760)
Ludlow - Pridoli426.7 - 419.62Morocco Strophomena rhomboidalis (27196)
Ludfordian425.0 - 422.7Mexico (Tamaulipas) Leptaena rhomboidalis (3566 3567)
Ludfordian425.0 - 422.7Sweden (Gotland) Leptaena rhomboidalis (13616 13618 13619 13621 70432)
Ludfordian425.0 - 422.7USA (Indiana) Leptaena rhomboidalis (6706)
Kaugetuma422.7 - 421.6Estonia Leptaena rhomboidalis (193120)
Pridoli422.7 - 419.62Belarus Leptaena rhomboidalis (23672)
Pridoli - Helderbergian422.7 - 393.47Morocco Strophomena rhomboidalis (27195)
Gedinnine419.62 - 413.02USA (Tennessee) Leptaena rhomboidalis (75628)
Lochkovian419.62 - 413.02China (Guangxi) Leptaena rhomboidalis (12923)
Lochkovian419.62 - 413.02USA (New York) Leptaena rhomboidalis (76757 83108 83109 83110 83111 83113 83114 83115)
Early/Lower Devonian419.62 - 393.47USA (New York) Leptaena rhomboidalis (75466 75470 75471)
Pragian413.02 - 410.62Vietnam Leptaena rhomboidalis (83241 83248)
Pragian413.02 - 410.62China (Guangxi) Leptaena rhomboidalis (12930)
Pragian - Early/Lower Emsian413.02 - 399.5Italy Leptaena rhomboidalis (26245 26251)
Eifelian393.47 - 387.95USA (New York) Leptaena rhomboidalis (9538 9539 9540 9542 9543 9547 9549 9551 9552 9555 9556 9557 9558 9559 9560 9561 9562 9563 9566 9567 9569 9570 9572 9573 9575 9577 9581 9582 9583 9613 9615 9617 77076 77077 77078 77080)
Eifelian393.47 - 387.95Germany Leptaena rhomboidales (60467)
Eifelian393.47 - 387.95USA (Pennsylvania) Leptaena rhomboidalis (232686)
Late/Upper Eifelian390.5 - 387.95Germany Leptaena rhomboidales (60140)
Givetian387.95 - 382.31Germany (Nordrhein-Westfalen) Leptaena rhomboidalis (44183)
Givetian387.95 - 382.31USA (Pennsylvania) Leptaena rhomboidalis (9883)
Givetian387.95 - 382.31China (Heilongjiang) Leptaena rhomboidalis (25870 25871)