Lepisosteiformes

The earliest known lepisosteiform is the marine Lepidotes from the Early Jurassic of Germany, which largely shares the original body plan of Ginglymodi shared with Semionotiformes. Numerous early lepisosteiforms (including basal lepisosteiforms such as Khoratichthys and Lanxangichthys, lepidotids such as Isanichthys, and basal lepisosteoids such as Thaiichthys) are known from the Late Jurassic and Early Cretaceous of Thailand and Laos, suggesting that what is now Southeast Asia may have been an important region for early lepisosteiform evolution, and that ginglymodians were the dominant fish in freshwater ecosystems in the region at the time. == Classification ==

• Order Lepisosteiformes • Genus Adrianaichthys • Genus Thaiichthys • Superfamily Lepisosteoidea '''''' • Family Obaichthyidae • Family Lepisosteidae == References ==