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

genus Arcidens Simpson, 1900: cladomics

2 Recent valid species (3 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 = 2 (3 total)
analyzed in 13 cladograms in 9 publications
maximum number of terminals in an analysis = 2 (mean = 1.62, median = 2)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 8
maximum number of included terminals = 2, (mean = 2 median = 2)
proportion of cladograms that support basic monophyly = 0.88


Cladograms

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

** Top Monophyly Cladogram ** ** Top Sister-Group Cladogram **

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 34 31 14 **
Cladomics cladogram Utterbackiana Alasminota Pseudodontoideus Lasmigona Pterosyna Arcidens confragosus Arcidens wheeleri Prolasmidonta Platynaias Ligodonta Alasmidonta Anodontoides Strophitus Sulcularia Pyganodon Utterbackia

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

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 39 31 13 0.0
Cladomics cladogram Utterbackia Pyganodon Utterbackiana Lasmigona Pseudodontoideus Pterosyna Arcidens confragosus Arcidens wheeleri Sulcularia Anodontoides Strophitus Prolasmidonta Platynaias Alasminota Alasmidonta

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

cst iT tT bi riS oT roT roS iD
0.933 2 2 0 2 631 35 13 0.0
Cladomics cladogram Pseudodontoideus Lasmigona Pterosyna Arcidens confragosus Arcidens wheeleri

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

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 26 25 11 0.0
Cladomics cladogram Utterbackiana Utterbackia Pyganodon Alasmidonta Pseudodontoideus Arcidens confragosus Arcidens wheeleri Alasminota Anodontoides Strophitus Sulcularia Platynaias Prolasmidonta

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

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 25 23 10 0.0
Cladomics cladogram Sulcularia Utterbackiana Alasminota Pseudodontoideus Arcidens confragosus Arcidens wheeleri Alasmidonta Platynaias Strophitus Pyganodon Utterbackia Anodontoides

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 0.0
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

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

cst iT tT bi riS oT roT roS iD
1.000 2 2 0 2 18 12 8 0.0
Cladomics cladogram Pseudodontoideus Lasmigona Pterosyna Arcidens confragosus Arcidens wheeleri Strophitus Pyganodon Utterbackia Platynaias Alasmidonta

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

cst iT tT bi riS oT roT roS iD
0.750 2 2 0 2 6 5 2 0.0
Cladomics cladogram Pyganodon grandis Pyganodon cataracta Pyganodon fragilis Pyganodon Platynaias Arcidens confragosus Arcidens wheeleri

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 0.0
Cladomics cladogram Strophitus Pterosyna Lasmigona Arcidens confragosus Utterbackia Alasmidonta Pyganodon Anodontoides Platynaias

Hewitt et al., 2018 [Publ 3758], fig. 5

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 8 5 5 0.0
Cladomics cladogram Pyganodon Platynaias Strophitus Lasmigona Arcidens wheeleri Pterosyna

Pieri et al., 2018 [Publ 3867], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 19 0 0 0.0
Cladomics cladogram Arcidens confragosus Quadrula Pustulosa Eurynia Pleurobema Fusconaia

Inoue et al., 2020 [Publ 3941], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 41 0 0 0.0
Cladomics cladogram Arcidens confragosus Pustulosa Quadrula Parvaspina Eurynia Hemistena Pleurobema Pleuronaia Fusconaia Amblema Reginaia Toxolasma Potamilus Ellipsaria Truncilla Leaunio Lampsilis bracteata Lampsilis fasciola Lampsilis ornata Lampsilis ovata Lampsilis cariosa Lampsilis cardium 3 Lampsilis cardium 2 Lampsilis satura Lampsilis cardium 1 Lampsilis higginsii Ortmanniana Lampsilis teres Lampsilis radiata Lampsilis siliquoidea Lampsilis bergmanni Lampsilis hydiana Lampsilis virescens Lampsilis straminea

Inoue et al., 2020 [Publ 3941], fig. 4

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 40 0 0 0.0
Cladomics cladogram Arcidens confragosus Pustulosa Quadrula Reginaia Parvaspina Eurynia Hemistena Pleurobema Pleuronaia Fusconaia Amblema Toxolasma Ellipsaria Truncilla Potamilus Leaunio Lampsilis bracteata Lampsilis ornata Lampsilis fasciola Lampsilis ovata Lampsilis cardium 3 Lampsilis cardium 2 Lampsilis satura Lampsilis cardium 1 Lampsilis teres Lampsilis higginsii Ortmanniana Lampsilis radiata Lampsilis siliquoidea Lampsilis hydiana Lampsilis bergmanni Lampsilis virescens Lampsilis straminea