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Leptodesma

Bivalvia - Ostreida - Pterineidae

Taxonomy
Leptodesma was named by Hall (1883) [Sepkoski's age data: O Cara-m P Guad-u]. Its type is Leptodesma rogersi.

It was assigned to Pteriacea by Amler (1992); to Pterioida by Sepkoski (2002); to Leptodesmatinae by Bouchet et al. (2010); and to Pterineidae by Vokes (1980), Anelli et al. (2006), Amler (2010), Yancey (2025).

Species
L. (Leiopteria), L. (Leptodesma), L. (Springeria), L. bakewellioides, L. chidruensis, L. eolus, L. gouldii (syn. Cyrtodontarca multidentata, Cyrtodontarca parallelidentata), L. guadalupensis, L. indistincta, L. potens, L. protextum, L. rogersi (type species), L. spinigerum, L. transversa, L. welleri, L. wupperanum
Species lacking formal opinion data
L. acadica, L. actualaris, L. acutilaris, L. anatina, L. ancilla, L. ardmillanensis, L. ausablensis, L. billingsi, L. bodana, L. borealis, L. cadmus, L. carboniferum, L. carens, L. cimitum, L. clitus, L. conradi, L. conradi, L. cultellatum, L. dawsoni, L. dekayi, L. deprati, L. eberti, L. ehlersi, L. elongatum, L. extenuatum, L. fontinalis, L. gratissima, L. guangxiensis, L. hector, L. improvisa, L. improvisa, L. jason, L. laevis, L. lamellosa, L. lichas, L. longa, L. longispinum, L. lunulata, L. lunulata, L. maclurii, L. marylandica, L. mathori, L. mesacostalis, L. mortoni, L. naviforme, L. naviforme, L. nereus, L. nitida, L. novella, L. ohioense, L. orus, L. parva, L. parvae, L. patricia, L. patulum, L. pelops, L. phaon, L. propinquum, L. pseudolaevis, L. pteriformis, L. rhomboidea, L. rhomboideum, L. robustum, L. sayi, L. sociale, L. spinerigum, L. stenzeli, L. striatula, L. striatus, L. subrhomboidea, L. torregi, L. variabilis, L. venusta, L. venusta, L. venuta, L. waviformes

Synonyms
Synonymy list
YearName and author
1883Leptodesma Hall
1940Dozierella Newell p. 282
1980Leptodesma Vokes p. 35
1992Leptodesma Amler p. 413
2002Leptodesma Sepkoski
2006Leptodesma Anelli et al. p. 1130
2010Leptodesma Amler p. 17
2010Leptodesma Bouchet et al.
2025Leptodesma Yancey p. 124

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderOstreida(Fërussac 1822)
suborderMalleidinaGray 1854
familyPterineidae
genusLeptodesmaHall 1883

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.

G. †Leptodesma Hall 1883
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Subg. †Leptodesma (Leiopteria) Hall 1883
+
†Leiopteria angusticoncha Gemmellaro 1896
†Leiopteria australis Etheridge Jr. 1898
†Leiopteria consimilis Gemmellaro 1896
†Leiopteria elegans de Gregorio 1930
†Leiopteria inflata Gemmellaro 1896
†Leiopteria opportuna Barrande 1881
†Leiopteria verrucosa Gemmellaro 1892
Invalid names: Leptodesma (Leiopteria) falcata Xu and Chang 1980 [nomen nudum], Leptodesma (Leiopteria) guizhouensis Xu and Chang 1980 [nomen nudum]
Subg. †Leptodesma (Springeria) Elias 1957
†Leptodesma bakewellioides Yakovlev 1903
†Leptodesma chidruensis Waagen 1881
†Leptodesma eolus Kindle 1909
†Leptodesma gouldii Beede 1902
+
Invalid names: Cyrtodontarca multidentata Beede 1907 [synonym], Cyrtodontarca parallelidentata Beede 1907 [synonym]
†Leptodesma indistincta Biakov 2002
†Leptodesma potens Hall 1883
†Leptodesma protextum Conrad 1842
†Leptodesma rogersi Hall 1883
†Leptodesma spinigerum Conrad 1842
†Leptodesma transversa Walcott 1884
†Leptodesma welleri Sayre 1930
†Leptodesma wupperanum Dahmer 1943
Invalid names: Dozierella Newell 1940 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
height118.2----
shell height814.810.025.014.05.24
valve height449.832.1048.510.09.79

Composition: aragoniteg
Composition 2: low Mg calciteg
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Thickness: intermediateg
Folds: minorg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Environment: marine, brackisho
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Comments: BODY SIZE: Data from Cox et al. (1969).g
Created: 2007-11-26 07:57:22
Modified: 2009-06-05 15:47:42
Source: g = genus, f = family, o = order, c = class
References: Hendy 2009, Kiessling 2004, Aberhan et al. 2004

Age range: base of the Harnagian to the top of the Changhsingian or 458.20000 to 251.90200 Ma

Collections (590 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Letna - Harnagian463.3 - 457.2Czechia L. patricia (3861)
Zahorany - Late/Upper Ordovician459.3 - 443.1Czechia L. improvisa (3865)
Harnagian - Soudleyan458.2 - 457.2Norway (Hamar -Nes) L. transversa (162624)
Burrellian456.6 - 452.5United Kingdom (Scotland) L. ardmillanensis (156584)
Llandovery443.1 - 432.9Canada (Ontario) Leiopteria sp. (444)
Llandovery443.1 - 432.9USA (New York) Leiopteria sp. (443) Leiopteria sp., L. sp. (463) L. rhomboidea (77054) L. sp. (458)
Llandovery443.1 - 432.9Canada (Nova Scotia) L. subrhomboidea (3066 3168)
Llandovery - Wenlock443.1 - 426.7China (Jiangxi) L. sp. (27897)
Llandovery - Ludlow443.1 - 422.7USA (Maryland) Leiopteria subplana (41101)
Silurian443.1 - 419.62USA (New York) L. sp. (531)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Wuchiapingian259.51 - 254.14China (Qinghai) L. buhaheensis (112862 112863)
Lopingian259.51 - 251.902Bosnia and Herzegovina Leiopteria sp. (206739)
Lopingian259.51 - 251.902India Leiopteria sp. (230328)
Wuchiapingian - Changhsingian259.51 - 251.902China (Hunan) L. sp. (105946)
Changhsingian254.14 - 251.902Pakistan Avicula chidruensis (81504 89061)
Changhsingian254.14 - 251.902China (Guizhou) L. falcata (112085) L. guizhouensis (111983 112009 112089 112090 112094) L. sp. (149295)
Changhsingian254.14 - 251.902China (Guangxi) L. sp. (149217)
Changhsingian254.14 - 251.902China (Fujian) L. sp. (95479) L. zhangi (111733)
Changhsingian254.14 - 251.902Japan L. sp. (115234)
Changhsingian254.14 - 251.902USA (Texas) Dozierella gouldii (50001 50021)