Another trip to "The Spot"

I had about a four hour window to collect today, so there was no hesitation in deciding where to go. I figured the spot that yielded the Xiphodolamia ensis and the C. Catticus on my last outing surely must have more surprises if I searched hard enough. I arrived at the stream at about 5:30 AM (being a converted fisherman, I consider a 5:00 summertime Saturday wake-up as sleeping in) and headed straight to the hot spot. On about my third screen I came up with a small Hemipristis that had some wear but was mostly intact - not a bad start. In the next half hour, I found a couple of decent Galeocerdo teeth and some beat up carcharias blades until I came up with my next nice find: a 1.5 inch carcharias tooth that was in perfect shape, however it was covered with hard reddish coating - no problem I’ll clean it at home. In the next hour and a half the pickens were slim; a couple of carcharhinus teeth, a complete ray tooth and a couple of beautiful carcharias blades that would have looked even more beautiful with a root attached. As much as I hated to admit, the spot was drying up. Knowing I didn’t have too much more time I decided to stick it out and expand my search area. I moved into deeper water about 8 feet away that was slightly over my knee and found some gravel rich sand. After a couple of screens I came up with a large blade that appeared to be from a lower hastalis tooth. The blade was in really nice shape, but again the whole missing root thing. I didn’t care since this was another very uncommon tooth, and I figured this spot must have more where that came from. I screened in that spot for the last hour without finding much, but in the last 15 minutes I finally found the tooth of the day; a 3/4 inch mako tooth that was in pristine condition! (pardon my enthusiasm, but it had a complete root). After I returned home, I cleaned off the nice 1.5 inch carcharias tooth. The red coating came off easy enough, but underneath was a black plaque that was extremely hard to remove. After scrubbing it with a scrub-brush for ten minutes I removed about a third of the plaque. The rest was on there good and would have to stay for now, but there is a beatiful tooth waiting underneath. I made two subsequent trips back to "The Spot" for about an hour duration each, the only significant finds were a really husky looking Carcharias tooth, a partial cow shark tooth and a tooth that I still have yet to identify. It appears to be an anterior cow shark tooth but has a only a single main cusp with no side cusps. I really haven’t seen any other tooth that comes close to resembling it.