Page last updated
Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Bivalvia | Trigoniida | Trigonioidea

family TRIGONIIDAE Lamarck, 1819: cladomics
     3 genera

Cladomics Summary

number of species = 8 (21 total)
number of subtaxa (rank: genus) = 3
analyzed in 97 cladograms in 48 publications
maximum number of terminals in an analysis = 3 (mean = 1.42, median = 1)
maximum number of subtaxa (genus) = 1 (mean = 1, median = 1)

Basic Monophyly

number of cladograms that test basic monophyly (i.e., more than 1 included species) = 36
maximum number of included terminals = 3, (mean = 2.14 median = 2)
maximum number of subtaxa (genus) = 1 (mean = 1, median = 1)
proportion of cladograms that support basic monophyly = 1

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.

Bolotov et al., 2016 [Publ 3743], fig. 2

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

1

Sonowal et al., 2021 [Publ 4221], fig. 3a

1

Sonowal et al., 2021 [Publ 4221], fig. 3b

1

Sonowal et al., 2021 [Publ 4221], fig. 4

1

Bolotov et al., 2016 [Publ 3743], fig. 4

1

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

1

Huff et al., 2004 [Publ 2697], fig. 5-6

1

Wu et al., 2020 [Publ 4121], fig. 2

1

González & Giribet, 2015 [Publ 3632], fig. 2

1

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

1

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

1

Sano et al., 2017 [Publ 3799], fig. 1

1

Wu et al., 2020 [Publ 4121], fig. S1

1

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

1

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

1

González & Giribet, 2015 [Publ 3632], fig. 6

1

González & Giribet, 2015 [Publ 3632], fig. 3

1

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

1

Lopes-Lima et al., 2018 [Publ 3829], fig. 1

1

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

1

Wu et al., 2021 [Publ 4366], fig. 6

1

Combosch et al., 2017 [Publ 3806], fig. 1

1

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

1

Lemer et al., 2019 [Publ 4093], fig. 1

1

Huang et al., 2018 [Publ 3828], fig. 3_5

1

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

1

Konopleva et al., 2017 [Publ 3807], fig. 6

1

Huff et al., 2004 [Publ 2697], fig. 2

1

Lopes-Lima et al., 2018 [Publ 3829], fig. 3

1

Chen et al., 2025 [Publ 4455], fig. 1

1

Sano et al., 2017 [Publ 3799], fig. 2

1

González & Giribet, 2015 [Publ 3632], fig. 4

1

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

1

Giribet & Distel, 2003 [Publ 3670], fig. 3f5

1

Combosch et al., 2017 [Publ 3806], fig. 2

1

Wu et al., 2021 [Publ 4366], fig. 2_I

1

Wu et al., 2020 [Publ 4121], fig. 3

-- Neotrigonia_margaritacea **

Walker et al., 2006 [Publ 2666], fig. 6

-- Neotrigonia_margaritacea **

Hoeh et al., 1998 [Publ 2695], fig. 4

-- Neotrigonia_margaritacea **

Whelan et al., 2011 [Publ 3380], fig. 1-ML

-- Neotrigonia_margaritacea **

Bieler et al., 2014 [Publ 3622], fig. 28

-- Neotrigonia_lamarckii **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Huff et al., 2004 [Publ 2697], fig. 4

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Amaro et al., 2017 [Publ 3791], fig. 3A

-- Neotrigonia_margaritacea **

Graf, 2002 [Publ 2651], fig. 2

-- Neotrigonia_margaritacea **

Santos-Neto et al., 2016 [Publ 3739], fig. 2a_b

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Whelan et al., 2011 [Publ 3380], fig. 1-MP

-- Neotrigonia_margaritacea **

Reis et al., 2013 [Publ 3580], fig. 4

-- Neotrigonia_margaritacea **

Bieler et al., 2014 [Publ 3622], fig. 26_27_29_30

-- Neotrigonia_lamarckii **

Huang et al., 2019 [Publ 3843], fig. 3

-- Neotrigonia_margaritacea **

Smith, 2021 [Publ 4331], fig. 1

-- Neotrigonia_margaritacea **

Amaro et al., 2017 [Publ 3791], fig. 3B

-- Neotrigonia_margaritacea **

Walker et al., 2006 [Publ 2666], fig. 4

-- Neotrigonia_margaritacea **

Guerra et al., 2019 [Publ 4168], fig. 2

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Guerra et al., 2017 [Publ 3772], fig. 2b

-- Neotrigonia_margaritacea **

Araujo et al., 2016 [Publ 3746], fig. 1_2b

-- Neotrigonia_margaritacea **

Roe & Hoeh, 2003 [Publ 2655], fig. 4f2

-- Neotrigonia_margaritacea **

Hoeh et al., 1998 [Publ 2695], fig. 3

-- Neotrigonia_margaritacea **

Huff et al., 2004 [Publ 2697], fig. 3

-- Neotrigonia_margaritacea **

Huang et al., 2018 [Publ 3828], fig. 6

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Pfeiffer & Graf, 2015 [Publ 3620], fig. 2

-- Neotrigonia_margaritacea **

Campbell & Lydeard, 2026 [Publ 4810], fig. 4

-- Neotrigonia_margaritacea **

Roe & Hoeh, 2003 [Publ 2655], fig. 4f3

-- Neotrigonia_margaritacea **

Hoeh et al., 2001 [Publ 2652], fig. 14f4

-- Neotrigonia_margaritacea **

Graf, 2000 [Publ 2647], fig. 1

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Taylor et al., 2007 [Publ 2696], fig. 1-3

-- Neotrigonia_lamarckii **

Hoeh et al., 2001 [Publ 2652], fig. 14f2

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Pfeiffer et al., 2019 [Publ 3937], fig. 6

-- Neotrigonia_margaritacea **

Takeuchi et al., 2015 [Publ 3661], fig. 2

-- Neotrigonia_margaritacea **

Graf et al., 2015 [Publ 3619], fig. 1

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Sano et al., 2020 [Publ 4138], fig. 1

-- Neotrigonia_lamarckii **

Takeuchi et al., 2015 [Publ 3661], fig. 3

-- Neotrigonia_margaritacea **

Walker et al., 2006 [Publ 2666], fig. 3

-- Neotrigonia_margaritacea **

Guerra et al., 2019 [Publ 4168], fig. 1

-- Neotrigonia_margaritacea **

Lopes-Lima et al., 2017 [Publ 3734], fig. 1

-- Neotrigonia_margaritacea **

Hoeh et al., 2002 [Publ 2653], fig. 2

-- Neotrigonia_margaritacea **

Guerra et al., 2017 [Publ 3772], fig. 2a

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

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

-- Neotrigonia_margaritacea **

Amaro et al., 2017 [Publ 3791], fig. 2

-- Neotrigonia_margaritacea **

Pfeiffer et al., 2019 [Publ 3937], fig. 4-5

-- Neotrigonia_margaritacea **

Reis et al., 2013 [Publ 3580], fig. 5

-- Neotrigonia_margaritacea **

Walker et al., 2006 [Publ 2666], fig. 2

-- Neotrigonia_margaritacea **

Santos-Neto et al., 2016 [Publ 3739], fig. 4

-- Neotrigonia_margaritacea **

Bogan & Hoeh, 2000 [Publ 2650], fig. 1

-- Neotrigonia_margaritacea **