Perkins, M.A., K.L. DeVilbiss, N.W. Whelan, R.A. Hoch, B.K. Jones et al. 2025. A new endemic freshwater mussel (Bivalvia, Unionidae) genus and species, Ligodonta obscura, from the Yadkin-Pee Dee River drainage in North Carolina, USA. ZooKeys 1248: 245-265. Available electronically.
(click the figure number to see the cladogram)
+-- Anodonta_cygnea
+--------------------------+
| +-- Anodonta_anatina
|
| +-------------------------- Pseudanodonta_complanata
| |
| | +-- Utterbackiana_heardi
| | +--+
| | | +-- Utterbackiana_couperiana
--+ | +-----------+
| | | | +-- Utterbackiana_hartfieldorum
| | | +--+
| | | +-- Utterbackiana_suborbiculata
| | |
| | +-----+ +----- Alasminota_etowaensis__2
| | | | +--------+
| | | | | | +-- Alasminota_etowaensis__1
+--+ | | | +--+
| | | | +-- Alasminota_holstonia
| | +--+
| | | +-- Pseudodontoideus_subvexus
| | | +--------+
| | | | +-- Pseudodontoideus_connasaugaensis
| | +--+
| | | +-------- Lasmigona_costata
| | +--+
| | | +----- Pterosyna_complanata
| | +--+
| | | +-- Arcidens_confragosus
| | +--+
| | +-- Arcidens_wheeleri
+--+
| +-------- Prolasmidonta_heterodon
| +-----+
| | | +----- Platynaias_decorata
| | +--+
| | | +-- Platynaias_compressa
| | +--+
| +-----+ +-- Platynaias_subviridis
| | |
| | | +----------- Ligodonta_obscura
| | | |
| | | | +-- Alasmidonta_marginata
| | +--+ +-----+
| | | | +-- Alasmidonta_raveneliana
| | | |
| | +--+ +-- Alasmidonta_varicosa
| | | +--+
+--+ | | +-- Alasmidonta_uwharriensis
| +--+
| | +-- Alasmidonta_arcula
| +--+
| +-- Alasmidonta_triangulata
|
| +----- Sulcularia_viridis
| +-----------+
| | | +-- Pyganodon_grandis
| | +--+
| | +-- Utterbackia_peninsularis
+--+
| +-- Anodontoides_ferussacianus
| +-----------+
| | +-- Anodontoides_denigratus
| |
+--+ +----- Strophitus_undulatus__2
| +-----+
| | | +-- Strophitus_howellsi
| | +--+
+--+ +-- Strophitus_undulatus__1
|
| +-------- Strophitus_pascagoulaensis__2
+--+
| +----- Strophitus_pascagoulaensis__1
+--+
| +-- Strophitus_williamsi
+--+
+-- Strophitus_radiatus