Amblydectes is known from fragments of jaw. It apparently had a jaw flattened towards the tip and triangular in cross-section. It has at times been synonymised with Coloborhynchus, Criorhynchus, Lonchodectes, or Ornithocheirus. A 2013 study found A. crassidens and A. eurygnathus to be nomina dubia, with A. platystomus possibly belonging to a separate, yet unnamed genus.