I have drawn the bizarre whorl-toothed shark, Helicoprion, a couple of times, but felt compelled to take another shot at it after reading the studies published recently. I used the reconstructions by the wonderful Ray Troll as the basis and wanted to show it eating squid, based on information that Helicoprion's 100 or so teeth seemed to be fixed, suggesting it ate soft prey. The whorl and the slot in the upper jaw also reminded me of the way a sperm whale's lower jaw fitted into its upper. I imagined therefore that it may have hunted like a smaller sperm whale, diving deep to slash in amongst shoals of squid, perhaps hunting larger cephalopods. With this in mind, I pictured Helicoprion bearing wounds like those of a sperm whale, tentacle slashes and sucker marks; previously I had modeled scarring on the shark like that on a great white. I was also interested to note that the shark was apparently closely related to Chimaeras and ratfish; both these have only one gill slit so I have alluded to that. In this image a Helicoprion is feasting on a gathering of mating squid; these usually happen in the dark but for the sake of artistic expediency, I have inferred many of the squid still being up near the surface at daylight.
The image was colour pencils and pastels on royal blue paper