Wikipedia
Acipenseriformes
thumb|Yanosteus longidorsalis MHNT Acipenseriformes is an order of basal ray-finned fishes that includes the sturgeons and paddlefishes, as well as some extinct families.
Notable characteristics of Acipenseriformes include:
- Cartilaginous endoskeleton
- Lack of vertebral centrum
- Spiral valve intestine
- Conus arteriosus