How would you like to be diving a local quarry or lake and be worried about those angry Falcutus Falcutus. Well, technically you probably would not be too worried, considering that these prehistoric sharks were really only interested in shrimp. Falcutus Falcutus were named for their large dorsel fin jutting up from their head, in the picture to the left it looks like a sickel. The drawing below is a better picture of the sickel like dorsel fin. The males were the only ones to have this first dorsel fin and the other dorsel fin. They developed them when they became mature males.

Fossils of these small toothed sharks can be found in great abundance at Bear Gulch, Montana.     
Over 130 species of fish exist at Bear Gulch Limestone, layers of limestone containing incredibly fossilized sea life. Most of the fossils have never been seen before and many of the sharks are things that only science fiction movies can bring to life. Fossils range from scales to beautifully preserved fossils with hearts, veins, stomach contents, and skin.

Why in Montana. Well, I am not sure. Perhaps there is a person out there who can shed some light on the situation. I can tell you scientists Rich Lund and Eileen Grogan are working the site and uncovering answers everyday.The site has also turned up fossils such as mollusk shells, worms, sponges, and wealth of other fish.

A large number of Falcutus Falcutus shark fossils have been discovered at the site making the Falcutus Falcutus the largest number of shark species at the site. These sharks were only 10-12 inches in length. Looking at the fossils scientists have been able to deduce that this was shark had great mobility, was a cruiser and superb hunter. Its large eyes suggest a visual predator, the large rostrum, the nose, indicates the strong ability for this shark to detect electrical pulses of its prety similar to sharks of today. This shark is believed to have been tan in color, similar in color to the muddy water it inhabitated. Falcutus Falcutus would have been a darker tan on top and a lighter color underneath, good camoflague.

Who would have thought you did not have to jump in the water to see sharks and who would have imagined looking for shark fossils in Montana. For more information on the work that Rich Lund and Eileen Grogan please visit there website  http://www.sju.edu/research/bear_gulch/index.php. I will warn you the website is a bit technical but worth a visit. Most of the information for this story was pulled from this site.

I also found this interesting article http://www.findarticles.com/p/articles/mi_m1134/is_6_115/ai_n16533382