Seahorses and other Syngnatharia originated in the ancient Tethys Sea

Syngnatharia are a diverse clade of percomorph fishes found throughout tropical and warm-temperate waters with many of its members found in the Indo-Pacific. The group includes: trumpetfishes, goatfishes, dragonets, flying gurnards, seahorses and pipefishes of which seahorses will be immediately familiar to most people. Their wide distribution combined with the long-rang dispersal capabilities of many of its members has made it challenging to pin down where in the world this group of fishes comes from.