- Until recenlty were it's "buzz saw" appendage was placed was a subject of debate.
- Helicoprion offspring are not able to swim.
- Unlike other Aquatic type "dinosaurs", Heicoprions do not require to drink water.
|Oxygen and Moistness|
|Description:||Lived during the Triassic Period. This awkward looking shark is known mostly for it's "tooth whirl" on it's lower jaw. At first when archeoligists found the 'tooth whirl' they thought it was some kind of ammonite shell. This creature's size is estimated to be around 7.5 meters long. The question on where the 'tooth whirl' was actually on the body was a difficult question to scientists in the 20th century. At first they thought it had a long, toothy bottom jaw, but was later claimed that it would make it harder for the creature to swim.|