Källersjö, M., T.v. Proschwitz, S. Lundberg, P. Eldanäs & C. Erséus. 2005. Evaluation of ITS rDNA as a complement to mitochondrial gene sequences for phylogenetic studies in freshwater mussels: an example using Unionidae from north-western Europe. Zoologica Scripta 34: 415-424. Available electronically.
(click the figure number to see the cladogram)
+----- Margaritifera_margaritifera
|
| +-- Anodonta_anatina
| |
+--+-- Pseudanodonta_complanata
--+ |
| +-- Anodonta_cygnea
|
| +-- Unio_crassus
| |
+--+-- Unio_pictorum
|
+-- Unio_tumidus
+-------- Margaritifera_margaritifera
|
| +----- Anodonta_anatina
+--+
--+ | +-- Pseudanodonta_complanata
| +--+
| +-- Anodonta_cygnea
|
| +----- Unio_tumidus
+--+
| +-- Unio_crassus
+--+
+-- Unio_pictorum