The ‘flood-runner’ aspect of the name derives from the fossil having been found in rock layers evidently deposited by fast-flowing water.
The “high-energy” floodwater entombed not only Diluvicursor but a host of other vertebrates too, all entangled in a mass of plant debris, including huge logs—one exposed fossil log measured five meters long. And the amount of sediment deposited was huge, as evidenced e.g. by a now-coalified tree stump and its root ball being completely buried, in an upright position.
Sadly, evolutionists ignore this “ancient log-jam”, similar to burial patterns seen in fossil sites around the world, as evidence consistent with a single, global event—the worldwide Flood of Genesis 6–9. In that event, the only refuge for the likes of Diluvicursor was to be on the Ark with Noah, for no ‘flood-runner’ could outrun that Deluge." CMI