After Brochu, 2004, 2006, and Delfino, Piras & Smith, 2005
†Eosuchus Dollo, 1907 Gavialis Marsh, 1870 Sphenosaurus Morton, 1844, non Sphenosaurus von Meyer, 1864 non Eosuchus Watson, 1912 [= Noteosuchus, a basal neodiapsid] †Thecachampsoides Norell & Storrs, 1986 †Eosuchus lerichei Dollo, 1907 †Eosuchus lerelichii Brochu, 2001a, b (lapsus calami) †Eosuchus minor (Marsh, 1870) Gavialis minor Marsh, 1870 ?Sphenosaurus clavirostris Morton, 1844 Thecachampsoides minor (Marsh) Norell & Storrs, 1986 Thecachampsoides minor (Marsh) Brochu, 2004 Eosuchus minor (Marsh) Brochu, in press vide Delfino, Piras & Smith, 2005 Eosuchus minor (Marsh) Brochu, 2006
Brochu (2004) suggested that Thecachampsoides minor (Marsh) and Sphenosaurus clavirostris Morton are actually a cospesific and the correct binomen should Thecachampsoides clavirostris (Morton). However he didn't formalize this chance yet, but continued to use binomen Thecachampsoides minor (Marsh).
Delfino et al. (2005) synonymized Eosuchus Dollo, 1907 and Thecachampsoides Norell & Storrs, 1986, this synonymizing was done based on unpublished work by Brochu. (Delfino, pers. comm.)
Brochu's article formally synonymizing Thecachampsoides with Eosuchusappeared in “Journal of Paleontology’ on spring 2006. For the taxonomic stability, Thecachampsoides clavirostris (Morton) was sunk under binomen Eosuchus minor (March) and was considered as invalid senior synonym by Brochu.
- Brochu, C. A., 2004: A new Late Cretaceous gavialoid crocodylian from eastern North America and the phylogenetic relationships of thoracosaurs.
–Journal of Vertebrate Paleontology: Vol. 24, #3, pp. 610-633
- Brochu, C. A., 2006: Osteology and phylogenetic significance of Eosuchus minor (Marsh, 1870) new combination, a longirostrine crocodylian from the Late Paleocene of North America.
–Journal of Paleontology: Vol. 80, #1, pp. 162-186
- Delfino, M., Piras, P. & Smith, T., 2005: Anatomy and phylogeny of the gavialoid crocodylian Eosuchus lerichei from the Paleocene of Europe.
–Acta Palaeontologica Polonica: Vol. 50, #3, pp. 565-580