Bivalvia | Unionida | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina

genus Alasmidonta Say, 1818: cladomics

11 Recent valid species (11 total species)

Cladomics pages are experimental — even more so than the rest of this site!

The purpose of the cladomics pages for each genus and family-group level taxon is to provide statistics and references indicating the extent to which published phylogenetic work supports the classification used here.

The Cladomics Summary provides an overview of the number of studies that have included terminal species representing this taxon as well as an indication of how frequently it has been recovered as monophyletic.

Following the summary, the available published clades representing the taxon are listed.

For more information, visit the Cladomics FARQ (frequently asked rhetorical questions) page. Abbreviations for the various statistics are explained on the FARQ!

Cladomics Summary

number of species = 11 (11 total)
analyzed in 67 cladograms in 45 publications
maximum number of terminals in an analysis = 7 (mean = 1.46, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 9
maximum number of included terminals = 7, (mean = 4.44 median = 5)
proportion of cladograms that support basic monophyly = 0.89

Pairwise Cladogram Clustering

The graphs below depict in two dimensions all pair-wise ingroup distances within the cladome. See the Cladmoics FARQ for more information.

PCoA Ordination of Alasmidonta cladogram distances
PCoA Ordination

NJ Tree of Alasmidonta cladogram distances
NJ Tree

Cladograms

Whelan et al., 2023 [Publ 4287], fig. 2

** Top Monophyly Cladogram **

cst iT tT bi riS oT roT roS iD
1.000 7 7 5 7 34 26 13 **
Cladomics cladogram Utterbackia Pyganodon Utterbackiana Lasmigona Pseudodontoideus Pterosyna Arcidens Sulcularia Anodontoides Strophitus Prolasmidonta Platynaias Alasminota Alasmidonta raveneliana Alasmidonta marginata Alasmidonta varicosa Alasmidonta uwharriensis Alasmidonta undulata Alasmidonta triangulata Alasmidonta arcula

Perkins et al., 2025 [Publ 4447], fig. 2_mtDNA-ITS

** Top Sister-Group Cladogram **

cst iT tT bi riS oT roT roS iD
1.000 6 6 4 6 30 27 14 1.0
Cladomics cladogram Utterbackiana Alasminota Pseudodontoideus Lasmigona Pterosyna Arcidens Anodontoides Strophitus Sulcularia Pyganodon Utterbackia Prolasmidonta Platynaias Ligodonta Alasmidonta marginata Alasmidonta raveneliana Alasmidonta varicosa Alasmidonta uwharriensis Alasmidonta arcula Alasmidonta triangulata

Whelan et al., 2023 [Publ 4287], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 7 7 5 7 21 20 11 0.0
Cladomics cladogram Utterbackiana Utterbackia Pyganodon Alasminota Anodontoides Strophitus Sulcularia Platynaias Prolasmidonta Arcidens Pseudodontoideus Alasmidonta marginata Alasmidonta raveneliana Alasmidonta varicosa Alasmidonta uwharriensis Alasmidonta undulata Alasmidonta triangulata Alasmidonta arcula

Campbell & Lydeard, 2026 [Publ 4810], fig. 6-14

cst iT tT bi riS oT roT roS iD
0.933 6 6 4 6 627 31 13 1.0
Cladomics cladogram Utterbackia Pyganodon Utterbackiana Simpsonaias Prolasmidonta Platynaias Anodontoides Strophitus Alasminota Alasmidonta marginata Alasmidonta raveneliana Alasmidonta arcula Alasmidonta undulata Alasmidonta uwharriensis Alasmidonta varicosa

Whelan et al., 2023 [Publ 4287], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 5 5 2 5 22 20 10 3.0
Cladomics cladogram Sulcularia Utterbackiana Alasminota Arcidens Pseudodontoideus Alasmidonta raveneliana Alasmidonta uwharriensis Alasmidonta varicosa Alasmidonta arcula Alasmidonta triangulata Platynaias Strophitus Pyganodon Utterbackia Anodontoides

Inoue et al., 2014 [Publ 3635], fig. 3A

cst iT tT bi riS oT roT roS iD
1.000 3 3 1 3 17 11 8 4.0
Cladomics cladogram Pseudodontoideus Lasmigona Pterosyna Arcidens Strophitus Pyganodon Utterbackia Platynaias Alasmidonta marginata Alasmidonta undulata Alasmidonta varicosa

Inoue et al., 2018 [Publ 3858], fig. 1_3a-c

cst iT tT bi riS oT roT roS iD
0.455 2 20 0 2 103 14 9 24.0
Cladomics cladogram Alasmidonta marginata Prolasmidonta Alasmidonta undulata Beringiana Brachyanodon kennerlyi Brachyanodon nuttalliana Brachyanodon oregonensis Arcidens confragosus Arcidens wheeleri Pterosyna Platynaias compressa Lasmigona Platynaias decorata Platynaias subviridis Pyganodon grandis Pyganodon lacustris Pseudodontoideus Strophitus Utterbackia imbecillis Utterbackia peninsularis 1 Utterbackia peninsularis 2 Gonidea Reginaia Amblema Popenaias Dromus Epioblasma Glebula Lampsilis ovata Lampsilis virescens Lemiox Obliquaria Obovaria olivaria Obovaria unicolor Plectomerus Potamilus alatus Potamilus capax Uniomerus Cyclonaias Pustulosa pustulosa 1 Theliderma Pustulosa pustulosa 2 Quadrula quadrula Quadrula verrucosa Elliptoideus Parvaspina Plethobasus Eurynia Hemistena Elliptio Pleuronaia Pleurobema cordatum Fusconaia Pleurobema plenum Pleurobema stabile Pleurobema pyriforme Pleurobema georgianum 2 Pleurobema athearni Pleurobema decisum Pleurobema georgianum 1 Pleurobema hanleyianum 1 Pleurobema hanleyianum 2 Pleurobema beadleianum 2 Pleurobema strodeanum 2 Pleurobema rubellum Pleurobema beadleianum 1 Pleurobema taitianum Pleurobema perovatum Pleurobema strodeanum 1 Pleurobema oviforme 6 Pleurobema clava 3 Pleurobema oviforme 5 Pleurobema clava 2 Pleurobema oviforme 2 Pleurobema oviforme 3 Pleurobema oviforme 4 Pleurobema clava 1 Pleurobema oviforme 1 Pleurobema riddellii Pleurobema sintoxia 34 Pleurobema sintoxia 31 Pleurobema sintoxia 32 Pleurobema sintoxia 33 Pleurobema 4 Pleurobema 5 Pleurobema sintoxia 2 Pleurobema sintoxia 3 Pleurobema 8 Pleurobema 9 Pleurobema 10 Pleurobema sintoxia 5 Pleurobema sintoxia 6 Pleurobema sintoxia 7 Pleurobema sintoxia 8 Pleurobema sintoxia 9 Pleurobema sintoxia 10 Pleurobema sintoxia 11 Pleurobema sintoxia 12 Pleurobema sintoxia 13 Pleurobema sintoxia 14 Pleurobema sintoxia 15 Pleurobema sintoxia 16 Pleurobema sintoxia 17 Pleurobema sintoxia 18 Pleurobema sintoxia 19 Pleurobema sintoxia 20 Pleurobema sintoxia 21 Pleurobema sintoxia 22 Pleurobema sintoxia 23 Pleurobema sintoxia 24 Pleurobema sintoxia 25 Pleurobema sintoxia 26 Pleurobema sintoxia 27 Pleurobema sintoxia 28 Pleurobema sintoxia 29 Pleurobema sintoxia 30 Pleurobema 6 Pleurobema sintoxia 1 Pleurobema 7 Pleurobema sintoxia 4 Pleurobema 3 Pleurobema 1 Pleurobema 2

Breton et al., 2011 [Publ 3376], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 36 9 6 --
Cladomics cladogram Pterosyna Lasmigona Strophitus Pyganodon Utterbackia Platynaias Alasmidonta marginata Alasmidonta undulata

Chase et al., 2018 [Publ 3847], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 37 9 6 --
Cladomics cladogram Pyganodon Utterbackia Lasmigona Pterosyna Alasmidonta undulata Alasmidonta marginata Strophitus Platynaias

Boyer et al., 2011 [Publ 2718], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 37 8 8 --
Cladomics cladogram Strophitus Pterosyna Lasmigona Arcidens Utterbackia Alasmidonta marginata Pyganodon Anodontoides Platynaias

Krebs et al., 2003 [Publ 2691], fig. 3

cst iT tT bi riS oT roT roS iD
0.889 1 1 0 1 32 8 7 --
Cladomics cladogram Utterbackiana Platynaias Alasmidonta triangulata Pterosyna Lasmigona Strophitus Utterbackia Pyganodon Anodonta

Chong et al., 2008 [Publ 2668], fig. 3

cst iT tT bi riS oT roT roS iD
0.889 1 1 0 1 17 7 7 --
Cladomics cladogram Pseudodontoideus Alasmidonta marginata Pterosyna

Smith et al., 2018 [Publ 3790], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 17 16 7 --
Cladomics cladogram Utterbackia Pyganodon Anodontoides Strophitus Alasmidonta triangulata Alasminota Pseudodontoideus Utterbackiana

Boyer et al., 2011 [Publ 2718], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 34 5 5 --
Cladomics cladogram Alasmidonta marginata Pyganodon Pterosyna Lasmigona Platynaias Strophitus

Huang et al., 2019 [Publ 3843], fig. 2

cst iT tT bi riS oT roT roS iD
0.857 1 1 0 1 200 6 5 --
Cladomics cladogram Alasmidonta marginata Lasmigona Pseudanodonta Simpsonaias Strophitus Pyganodon Utterbackia Anodonta anatina Anodonta cygnea Brachyanodon

Huang et al., 2019 [Publ 3843], fig. S3

cst iT tT bi riS oT roT roS iD
0.857 1 1 0 1 198 6 5 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Huang et al., 2019 [Publ 3843], fig. S4

cst iT tT bi riS oT roT roS iD
0.857 1 1 0 1 200 6 5 --
Cladomics cladogram Acuticosta Alasmidonta marginata Anodonta anatina Anemina Anodonta cygnea Cristaria Brachyanodon Lasmigona Lepidodesma Pseudanodonta Pyganodon Simpsonaias Strophitus Utterbackia Schistodesmus Unio Scriptolamprotula Lanceolaria Pletholophus Sinanodonta Cuneopsis celtiformis Tchangsinaia Cuneopsis rufescens Nodularia Cuneopsis szechenyii Cuneopsis heudei

Stewart et al., 2021 [Publ 4451], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 15 9 5 --
Cladomics cladogram Alasmidonta marginata Pterosyna Strophitus Platynaias Pyganodon Utterbackia

Wu et al., 2023 [Publ 4339], fig. 4_S5-aa

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 94 6 5 --
Cladomics cladogram Pyganodon Utterbackia Alasmidonta varicosa Platynaias Prolasmidonta Pterosyna

Wu et al., 2023 [Publ 4339], fig. 4_S5-nt

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 94 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2024 [Publ 4350], fig. 8a_S1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 90 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2024 [Publ 4350], fig. 8b_S2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 90 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2024 [Publ 4379], fig. 5

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 52 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Hou et al., 2024 [Publ 4400], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 74 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Hou et al., 2025 [Publ 4445], fig. 5

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 51 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Platynaias Alasmidonta varicosa

Wang et al., 2025 [Publ 4488], fig. 3B

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 63 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Campbell & Lydeard, 2026 [Publ 4810], fig. 3_5

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 139 7 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2026 [Publ 4811], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 94 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2026 [Publ 4825], fig. 6B

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 64 6 5 --
Cladomics cladogram Pyganodon Utterbackia Pterosyna Prolasmidonta Alasmidonta varicosa Platynaias

Lydeard et al., 1996 [Publ 2656], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 26 5 4 --
Cladomics cladogram Utterbackia Utterbackiana Strophitus Lasmigona Alasmidonta triangulata

Lydeard et al., 1996 [Publ 2656], fig. 4

cst iT tT bi riS oT roT roS iD
0.833 1 1 0 1 27 4 4 --
Cladomics cladogram Strophitus Lasmigona Alasmidonta triangulata

Huang et al., 2002 [Publ 2657], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 33 4 4 --
Cladomics cladogram Utterbackiana Utterbackia Strophitus Alasmidonta triangulata Lasmigona

Huang et al., 2002 [Publ 2657], fig. 2

cst iT tT bi riS oT roT roS iD
0.833 1 1 0 1 33 4 4 --
Cladomics cladogram Utterbackia Utterbackiana Alasmidonta triangulata Lasmigona

Lopes-Lima et al., 2017 [Publ 3745], fig. 1-2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 80 4 4 --
Cladomics cladogram Pyganodon Simpsonaias Strophitus Alasmidonta marginata Lasmigona

Bolotov et al., 2017 [Publ 3761], fig. S1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 138 4 4 --
Cladomics cladogram Lasmigona Alasmidonta marginata Simpsonaias Pyganodon Strophitus

Bolotov et al., 2017 [Publ 3761], fig. S2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 138 4 4 --
Cladomics cladogram Pyganodon Simpsonaias Strophitus Alasmidonta marginata Lasmigona

Bolotov et al., 2017 [Publ 3764], fig. S1

cst iT tT bi riS oT roT roS iD
0.833 1 1 0 1 124 4 4 --
Cladomics cladogram Alasmidonta marginata Anodonta anatina Anodonta cygnea Brachyanodon Lasmigona Pseudanodonta Pyganodon Simpsonaias Strophitus Sinanodonta lauta Cristaria plicata Cristaria radiata Pletholophus Sinanodonta lucida Sinanodonta jourdyi Lanceolaria gladiola Lanceolaria grayii Lanceolaria danzhouensis

Bolotov et al., 2018 [Publ 3826], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 81 4 4 --
Cladomics cladogram Pyganodon Simpsonaias Strophitus Alasmidonta marginata Lasmigona

Lopes-Lima et al., 2020 [Publ 4080], fig. 2-4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 121 4 4 --
Cladomics cladogram Pyganodon Simpsonaias Strophitus Alasmidonta marginata Lasmigona

Sano et al., 2020 [Publ 4138], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 68 5 4 --
Cladomics cladogram Pyganodon Utterbackia Alasmidonta varicosa Prolasmidonta Platynaias

Sano et al., 2020 [Publ 4138], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 68 5 4 --
Cladomics cladogram Pyganodon Utterbackia Alasmidonta varicosa Platynaias Prolasmidonta

Sano et al., 2020 [Publ 4138], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 68 5 4 --
Cladomics cladogram Pyganodon Utterbackia Alasmidonta varicosa Prolasmidonta Platynaias

Chen et al., 2020 [Publ 4170], fig. 1

cst iT tT bi riS oT roT roS iD
0.667 1 1 0 1 33 5 4 --
Cladomics cladogram Alasmidonta varicosa Anemina

Wu et al., 2021 [Publ 4366], fig. 3-BI

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 72 6 4 --
Cladomics cladogram Pyganodon Utterbackia Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2021 [Publ 4366], fig. 3-ML

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 72 6 4 --
Cladomics cladogram Pyganodon Utterbackia Prolasmidonta Alasmidonta varicosa Platynaias

Wu et al., 2021 [Publ 4366], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 67 5 4 --
Cladomics cladogram Pyganodon Utterbackia Prolasmidonta Platynaias Alasmidonta varicosa

Jeratthitikul et al., 2022 [Publ 4260], fig. S1_1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 75 4 4 --
Cladomics cladogram Pyganodon Simpsonaias Strophitus Alasmidonta marginata Lasmigona

Jeratthitikul et al., 2022 [Publ 4260], fig. S2_2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 75 4 4 --
Cladomics cladogram Alasmidonta marginata Lasmigona Pyganodon Strophitus Simpsonaias

Graf & Ó Foighil, 2000 [Publ 2648], fig. 2A

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 29 4 3 --
Cladomics cladogram Alasmidonta marginata Lasmigona Strophitus Pyganodon

Graf & Ó Foighil, 2000 [Publ 2648], fig. 2B

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 29 4 3 --
Cladomics cladogram Alasmidonta marginata Lasmigona Strophitus Pyganodon

Graf & Cummings, 2006 [Publ 1968], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 46 3 3 --
Cladomics cladogram Lasmigona Alasmidonta marginata Pyganodon Strophitus

Hoeh et al., 2009 [Publ 2716], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 46 3 3 --
Cladomics cladogram Lasmigona Alasmidonta marginata Strophitus Pyganodon

Hoeh et al., 2009 [Publ 2716], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 45 3 3 --
Cladomics cladogram Lasmigona Alasmidonta marginata Strophitus Pyganodon

Hoeh et al., 2009 [Publ 2716], fig. 5

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 45 3 3 --
Cladomics cladogram Lasmigona Alasmidonta marginata Strophitus Pyganodon

Jadhav & Jamkhedkar, 2009 [Publ 3697], fig. 11

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 24 3 3 --
Cladomics cladogram Lasmigona Strophitus Alasmidonta marginata Pyganodon

Wu et al., 2018 [Publ 3836], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 52 4 3 --
Cladomics cladogram Strophitus Platynaias Alasmidonta marginata Pyganodon

Aunins et al., 2018 [Publ 3863], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 39 4 3 --
Cladomics cladogram Prolasmidonta Alasmidonta varicosa Pyganodon Utterbackia

Fukata & Iigo, 2020 [Publ 4106], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 53 3 3 --
Cladomics cladogram Pyganodon Utterbackia Alasmidonta varicosa Prolasmidonta

Graf, 2002 [Publ 2651], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 17 1 1 --
Cladomics cladogram Alasmidonta marginata Pyganodon

Araujo et al., 2018 [Publ 3779], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 17 1 1 --
Cladomics cladogram Pyganodon Alasmidonta marginata

Chen et al., 2023 [Publ 4302], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 40 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Chen et al., 2023 [Publ 4302], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 40 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Wu et al., 2024 [Publ 4388], fig. 6

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 52 1 1 --
Cladomics cladogram Alasmidonta varicosa Utterbackia

Dai et al., 2025 [Publ 4440], fig. 1

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 43 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Dai et al., 2025 [Publ 4440], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 43 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Chen et al., 2025 [Publ 4487], fig. 2

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 40 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona

Chen et al., 2025 [Publ 4487], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 40 1 1 --
Cladomics cladogram Alasmidonta marginata Lasmigona