Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Lampsilini

genus Villosa Frierson, 1927: cladomics

4 Recent valid species (4 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 = 4 (4 total)
analyzed in 16 cladograms in 12 publications
maximum number of terminals in an analysis = 3 (mean = 1.13, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 1
maximum number of included terminals = 3, (mean = 3 median = 3)
proportion of cladograms that support basic monophyly = 0


Cladograms

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

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

cst iT tT bi riS oT roT roS iD
0.607 3 70 78 3 630 90 26 **
Cladomics cladogram Potamilus inflatus Potamilus ohiensis Potamilus amphichaenus Potamilus streckersoni Potamilus fragilis 2 Potamilus leptodon Potamilus fragilis 1 Potamilus metnecktayi Potamilus alatus 3 Potamilus alatus 2 Potamilus purpuratus 2 Potamilus alatus 1 Potamilus purpuratus 1 Villosa villosa Atlanticoncha Cambarunio nebulosus Ligumia Leaunio umbrans Cambarunio taeniatus Cambarunio iris Cambarunio simus Hamiota Pachynaias Sagittunio Ellipsaria Potamilus capax Truncilla Medionidus acutissimus Lemiox Medionidus penicillatus Ptychobranchus Cyprogenia aberti 2 Dromus Cyprogenia stegaria 2 Cyprogenia aberti 1 Cyprogenia stegaria 1 Villosa delumbis Villosa vibex Obovaria olivaria Venustaconcha Epioblasma Obovaria retusa Obovaria choctawensis Obovaria unicolor Obovaria subrotunda Mesonaias Obovaria arkansasensis Lampsilis splendida Lampsilis bracteata Lampsilis fasciola Ortmanniana pectorosa Lampsilis ornata Lampsilis ovata 2 Lampsilis dolabraeformis Lampsilis cardium 2 Lampsilis cardium 1 Lampsilis satura Lampsilis cariosa 2 Lampsilis ovata 1 Lampsilis cariosa 1 Ortmanniana ligamentina 2 Lampsilis abrupta Lampsilis higginsii 2 Ortmanniana ligamentina 1 Lampsilis higginsii 1 Medionidus conradicus Leaunio lienosus Leaunio vanuxemensis Lampsilis floridensis Lampsilis teres Lampsilis siliquoidea 1 Lampsilis siliquoidea 2 Lampsilis powellii 1 Lampsilis powellii 2 Lampsilis sietmani Lampsilis straminea 2 Lampsilis virescens Lampsilis hydiana 2 Lampsilis hydiana 1 Lampsilis bergmanni Lampsilis straminea 1

Campbell et al., 2005 [Publ 2660], fig. 1

cst iT tT bi riS oT roT roS iD
0.792 1 1 0 1 101 42 22 --
Cladomics cladogram Toxolasma Obliquaria Cyrtonaias Glebula Potamilus Medionidus acutissimus Lemiox Dromus Cyprogenia Sagittunio Medionidus conradicus Ptychobranchus Venustaconcha ellipsiformis 2 Ellipsaria Truncilla Villosa villosa Obovaria olivaria Venustaconcha ellipsiformis 1 Epioblasma Obovaria unicolor Obovaria arkansasensis Obovaria subrotunda Hamiota Lampsilis cardium Lampsilis ovata Ortmanniana pectorosa Lampsilis ornata Ligumia Cambarunio Lampsilis teres Ortmanniana ligamentina Lampsilis siliquoidea Leaunio

Campbell et al., 2005 [Publ 2660], fig. 2

cst iT tT bi riS oT roT roS iD
0.750 1 1 0 1 101 42 22 --
Cladomics cladogram Obliquaria Cyrtonaias Glebula Sagittunio Leaunio Potamilus Hamiota Ellipsaria Truncilla Lampsilis teres Ortmanniana ligamentina Lampsilis siliquoidea Villosa villosa Ligumia Cambarunio Ortmanniana pectorosa Lampsilis ornata Lampsilis cardium Lampsilis ovata Obovaria olivaria Venustaconcha ellipsiformis 2 Epioblasma Obovaria unicolor Obovaria arkansasensis Obovaria subrotunda Ptychobranchus Venustaconcha ellipsiformis 1 Medionidus conradicus Lemiox Medionidus acutissimus Dromus Cyprogenia

Smith et al., 2019 [Publ 3951], fig. 2

cst iT tT bi riS oT roT roS iD
0.905 1 1 0 1 40 35 19 --
Cladomics cladogram Obliquaria Medionidus Lemiox Cyprogenia Ptychobranchus Potamilus Atlanticoncha Ellipsaria Truncilla Hamiota Villosa villosa Ligumia Venustaconcha Obovaria Epioblasma Ortmanniana pectorosa Ortmanniana ligamentina Lampsilis

Burlakova et al., 2019 [Publ 3899], fig. 1

cst iT tT bi riS oT roT roS iD
0.895 1 1 0 1 32 25 17 --
Cladomics cladogram Toxolasma Potamilus Ellipsaria Truncilla Medionidus Lemiox Dromus Cambarunio Leaunio Villosa villosa Sagittunio Lampsilis ovata Venustaconcha Epioblasma Obovaria Lampsilis teres Lampsilis siliquoidea Lampsilis hydiana Lampsilis straminea

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

cst iT tT bi riS oT roT roS iD
0.667 1 1 0 1 32 10 7 --
Cladomics cladogram Ptychobranchus Potamilus fragilis Medionidus Villosa delumbis Ellipsaria Lampsilis teres Lampsilis siliquoidea Potamilus purpuratus Potamilus alatus

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

cst iT tT bi riS oT roT roS iD
0.750 1 1 0 1 26 8 6 --
Cladomics cladogram Potamilus fragilis Ptychobranchus Medionidus Potamilus purpuratus Lampsilis Ellipsaria Villosa delumbis

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

cst iT tT bi riS oT roT roS iD
0.875 1 1 0 1 27 8 6 --
Cladomics cladogram Obliquaria Medionidus Ptychobranchus Potamilus fragilis Potamilus purpuratus Ellipsaria Villosa delumbis Lampsilis

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

cst iT tT bi riS oT roT roS iD
0.750 1 1 0 1 33 7 6 --
Cladomics cladogram Medionidus Potamilus fragilis Ptychobranchus Potamilus purpuratus Lampsilis Villosa delumbis Ellipsaria

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

cst iT tT bi riS oT roT roS iD
0.750 1 1 0 1 33 7 6 --
Cladomics cladogram Villosa delumbis Ellipsaria Lampsilis Potamilus Ptychobranchus

Inoue et al., 2013 [Publ 3528], fig. 3

cst iT tT bi riS oT roT roS iD
0.857 1 1 0 1 16 9 5 --
Cladomics cladogram Lampsilis Leaunio Obovaria Villosa villosa Cambarunio

Roe et al., 2002 [Publ 2689], fig. 3a

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 9 9 4 --
Cladomics cladogram Ligumia Obliquaria Lampsilis Villosa villosa Hamiota

Buhay et al., 2002 [Publ 2661], fig. 2A

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 6 6 3 --
Cladomics cladogram Lampsilis Epioblasma Cambarunio Villosa villosa

Buhay et al., 2002 [Publ 2661], fig. 2B

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 6 6 3 --
Cladomics cladogram Lampsilis Epioblasma Cambarunio Villosa villosa

Turner et al., 2000 [Publ 2722], fig. 2

cst iT tT bi riS oT roT roS iD
0.750 1 1 0 1 13 8 2 --
Cladomics cladogram Medionidus Lampsilis teres Villosa delumbis Lampsilis satura Lampsilis cardium Lampsilis reeveiana Lampsilis hydiana 1 Lampsilis hydiana 2 Lampsilis siliquoidea 2 Lampsilis siliquoidea 1 Lampsilis powellii

Patterson et al., 2021 [Publ 4222], fig. 3

cst iT tT bi riS oT roT roS iD
1.000 1 1 0 1 3 0 0 --
Cladomics cladogram Villosa villosa Amblema