Topic summary
Esociformes
Extracted from the Wikipedia article Esocoidei.
Taxonomy
In the past, they were often placed in the order Salmoniformes as the suborder Esocoidei. During the early 21st century, due to their morphological divergence from Salmoniformes, they were instead treated as their own order, Esociformes. However, as phylogenetic studies have increasingly affirmed the relationship of Salmoniformes and Esociformes, more recent taxonomic authorities have revived the old classification of placing esocoids as a suborder of the Salmoniformes.