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Found 35 results

  1. rapp creek hunting

    Has been about 38 F (~4 C) or less since Sat morning and I was getting cabin fever. The tides are running high for the beaches, east wind blowing in the water. So I decided to go to the creek in pouring cold rain (45F, 7C); the creek was icy cold. Was probably stupid, it was difficult to work some new spots in water high over my ankles and both waterproof shoes eventually filled with water. Both quality and quantity of teeth were low. However I was lucky and found TWO nice cow shark teeth (without roots), a small mako (no serrations) along with the usual sand shark spikes and some small gray shark teeth. No angel shark and few drum teeth? Hopefully will turn up when the water quiets down.
  2. After the Hybodontids, our program starts to transition toward the modern sharks. We introduce lamniform sharks and the cow sharks. We will not be able to spend much time at all on the Cow and Crow Sharks. They only get a brief introduction and a look at the teeth. Squalicorax is an important species for us even though we do not spend a lot of time on it. The students in first few classes we do presentations for will be going home with Squalicorax teeth from Morocco. We would like to spend more time on the Cow sharks eventually but we only have one tooth to show them and we will have to edit content to free up space for them but I will work on that down the road. The primary focus in this section is Scapanorhynchus. The first shark art Carter did was a Goblin and we do give them a lot of time in the presentaton. They look cool and have been around for a long time. We present the kids with a nice assortment of teeth and some cool science. The teeth were important adaptations for catching fish and the snout had the ampullae of Lorenzini for sensing changes in the electro magnetic fields around them. We compare this to the modern hammerhead which we do not cover in the program but gives the kids a sense of how the adaptations of hammerheads work. We also talk about fin structure and being able to tell they were slow swimmers. The extend-o-matic jaw is another adaptation we cover with this species. I am happy with the fossil representations for now though I really want to add more Cow Shark fossils at some point and Anomotodon would also be a good addition. The fossils for the presentation.. Pic 1 Hexanchus andersoni from STH. I know H. andersoni should chronologically fit later but Cow Sharks fit here and this is the only one we have for now. Pic 2- Squalicorax pristodontus from Morocco. This is our largest Squalicorax tooth. The kids will get these teeth to take home so while we do not spend a lot of time on them, the teeth are very important to the program. Pic 3- Scapnorhynchus texanus and Scapanorhynchus puercoensis. Our nice little Goblin Shark display with some of our best teeth. Two of the texanus teeth are over 1.5 inches and the puercoenisis teeth are uncommon I believe and pretty super cool.
  3. Hop 5 01/25/19

    (I will now be using the poll format, so you can actually click your favorite and the poll will keep track of the votes) 1. Carcharocles chubutensis: MY FIRST MEGATOOTH! A bit of damage near the root and a missing bourlette, but a gorgeous tooth nonetheless. The serrations are absolutely killer. It’s about 1 ¾ inches. Colors completely changed when it dried. I. Am. Ecstatic. 2. Carcharias cuspidata: Very large sand tiger with a beautiful hooked double cusp on one shoulder. Excellent preservation, and certainly a necklace quality tooth. 3. Notorynchus primigenius: A perfect little cow shark tooth. Found in the cove within my first five minutes of collecting. Not very big, but in fantastic condition. 4. Isurus desori: Incredible little mako. It is absolutely pristine, and still sharp enough to cut you. Has that beautiful Brownies blue coloration on the enamel. 5. Carcharocles sp.: Oh, what could have been...this is the tip to what was probably a huge Megalodon tooth. Based on the thickness of the tooth, it would have been much larger than the meg that I found. Still a great find! The tip of a monster.
  4. Confirmation on cowshark teeth

    I was revisiting some of the shark teeth I've found on previous adventures in order to make a list/catalog of the vertebrate species present in my collection. I found a few teeth which I believe could come from notorhynchus or hexanchus and I wanted to confirm that with members on the forum. I was looking at some of my teeth from the spoil pits of Aurora, NC and the Peace River, FL. 1. Deep rooted specimen with what looks like what would be the first crown preserved. Found in Aurora. About 2 cm from top to bottom, 1 cm wide. 2. Unsure about this one, initially thought it was a tiger shark, but it's rather long at the base and doesn't have the curved root like your average tiger. Found on the Peace River. About 1.4 cm wide and .75 cm from top to bottom. 3. This is the one I'm least confident about, but the root is very wide. 1.4 cm wide and .8 cm from top to bottom.
  5. Rapp beach trips

    Went back to the beach twice after several days of north winds that should have pushed stuff on the beach. Was surprised that there was still snow on the ground away from the water. The surf was rougher both trips than I expected, lots of icy water in my boots both trips. Low tide was not that low (lunar? or need a decent south west wind?) The water was COLD and also cloudy, guessing stuff like shrimp coprolite "burrows" were further out; didn't find one on either trip. Highlight was today, found a nice cowshark tooth (but rootless), a broken cowshark tooth, and two almost one inch makos. Picked up more small "whale bone" than teeth each trip. Wind dropped at the end of the trip and I could have probably found more, but was tired and my feet were wet and cold, so gave it up.
  6. Worn Cow Shark Symphyseal

    Hi all, This tooth was found of one of my recent hunts along the Calvert Cliffs in Maryland. I found it at Bayfront Park/Brownies Beach. It is approximately one cm in length, relatively flat, and has multiple worn but visible bumps of enamel that could either be large serrations of some shark tooth or cusps of a symphyseal cow shark tooth. I believe it's the latter, but also recognize that it is a rather uncommon find. If it turns out to be a cow shark symphyseal, it would be my first one! Excited to see your takes on this one. I feel somewhat confident with my standing ID, but would love some confirmation. Thanks in advance!
  7. rapp creek hunting

    Finally got out to the creek in the woods. Warm and cloudy, but not many bugs (or frogs). Looked like lots of people had been hunting, but the main creek body was less silted than previously, shells everywhere (in addition to giant tree oysters, scallops, frilly oysters, there were some extra elongated "clams"? ) I had to shovel out lots of broken shells in my spots, and the teeth, as always, were small. Still it was good to get some angel shark teeth and drum teeth again (rare on the beach) and there were a fair amount of tiny teeth. Found one smallish mako/ great white (1" but in perfect shape). Odd in that many teeth were reddish/ pinkish; often I see the tips but not so many teeth that color (guess good for jewelry?) After three hours of digging and sifting, I decided it was time to go, but decided to try a favorite old spot where I have found several cow shark teeth, and voila! first shovelful yielded a beautiful (a bit small) intact cowshrk tooth with root. Good time to stop (probably sore tomorrow). Good relaxing trip!
  8. rapp creek hunting

    Back out to the same productive spot. Unfortunately it "played out" within an hour, but yielded a nice Great White/ Mako tooth, a very nice cowshark tooth, a few more angel shark teeth, and more drum teeth (some from last trip), more teeth, a scute and turtle shell pieces, and a small piece of jaw with two flat-topped teeth.
  9. Rapp creek hunting

    Headed out into the heat. After thunderstorms last night, was hoping some sand would wash away. Mosquitoes and biting flies were bad, and the great white/ mako area had been worked hard by someone else. So tried a second spot downstream, where I've found cow shark teeth in the past. Found two, one weird looking, but cannot imagine what else it could be. Six angel shark teeth (standing in blow up photo), a dozen or so drum pharyngeal teeth, plus lots of sand tiger spikes and bull/dusky shark triangles. A lot of the small teeth are odd to me, but that make reflect them generally being more weathered or broken.
  10. I found these two cow sharks (notorhyncus primigenus, bluntnose seven Gill) yesterday, miocene, Brownies beach. They were on both on a previous tide line within four feet of each other. The colors and size a very similar, so is it possible or likely that the lower and the symphyseal are associated? As in, from the same animal?
  11. rapp creek hunting

    Nice Spring outing, very green, nice balance of frogs, salamanders, nesting birds (in the creek bank?), with poison ivy growing well and more background construction/ farming noise than usual. Not much has changed in the creek bed, could use a good rain to wash out more. The tooth hunting was slow (probably because I wasn't working at it hard enough). Still, came out with a nice intact(?) ecphora, two broken cow shark teeth, four angel shark teeth and a bunch of drum teeth (or facsimiles thereof; don't usually pick them up unless pretty, but it was a slow day). Some stuff in matrix, unusual for the creek but nothing clearly exciting. The sand shark teeth were small and many broken (guess the kids in the area have been picking these). Picked up a lot of bits and pieces (a few of the smaller ones are in the photo; guessing many are turtle= my default for flat pieces that look like but are not seashells). More to sort through. Small stuff to puzzle over.
  12. Yesterday I went over to Bakersfield ( Sharktooth Hill locality) East of the river. Just for kicks, I grabbed a small amount of matrix chunks to see if any small fossils could be found. Fast forward to my prep lab ( kitchen) for a cleaning. I was surprised at the abundance of tiny fossils in there and they have the same coloring as the larger teeth.lots of reds, yellows, sable browns, etc. Tonight I did some sorting and looky what I found. A very small Cow Shark tooth only 6mm long.
  13. On The fossil guy website on Cow Sharks, there is a tiny detail that intrigued me. “There are also some differences between male and female teeth. These differences, however, will not be discussed here.” Well then we better discuss them here! Anybody know what these are? For me the bluntnose sevengill would be more relevant, but for the sake of learning add sex differences in the teeth of any and all Cow shark species. Thanks all!
  14. Hello all! I just took my fifth trip to Brownies beach yesterday the 21 of January. A couple people found some 3 inch megs- but for me it was a slow day until I found a cow shark tooth and the tides rolled in. I’m so thankful to be able to enjoy the fresh air. Thanks for looking!! Because this was my fifth trip, I’m attaching my favorite finds from all five trips so far! Thanks for looking.
  15. Hello, Found this interesting tooth in Bakersfield, in the Round Mountain Silt formation on Dec 24, 2017. To me it looks like a pathological upper tooth from a cow shark (hexanchus). There seems to be a very small inclusion on the side of the tooth (second photo), but hard to say if it was there when the shark lost it. The tooth is about the size of an American penny coin. Any validating comments or ideas are appreciated.
  16. Calvert Cliffs Calendar

    So i mentioned I was going to do a Calvert Cliffs Annual calendar to highlight my best finds from each month. Well I took all the pics and sent it off to the printer they will be ready in a week. This way when i'm too old and senile to hunt anymore I will be able to flip through the old calendars to remember when things were found. So without further ado here is the first of many years to come!! JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER COVER
  17. Megalodon vs Cow shark

    Quick fossil trip to the bay today. Found a nice megalodon only to be outdone by finding my largest and nicest cow shark tooth! small video of the action...
  18. Six-gill cow shark

    A nice upper shark tooth from the six-gill cow shark, from Chile. Possibly from a male. One cusp is missing (far right in first photo).
  19. 7-2-17 Calvert Cliffs

    Went out for a quick hunt this afternoon. I found a sweet upper anterio-lateral cow, a barracuda tooth which is rare for the beach i was on, and my largest to date shark vert. Also i think i found some sort of munition the round ball beneath whale material it is made of metal and is mushroomed on one side. Not to shabby for a quick walk.
  20. Cow shark tooth?

    I received a mosasaur jaw in matrix and I found something is the side which I think is a cow shark(Hexanchus) because of the formation but it is broken in half, it is from Morocco.
  21. Hexanchus from Chile

    Hi all, I have here a six-gill cow shark tooth (Hexanchus) from the Atacama desert. I do have a few questions about it: What is the species name? What position in the jaw is it? Exactly how old is it? (I'd like this to be as precise as possible; if you could tell me the precise stage it would be perfect!) Thanks for the help! Max
  22. I was able to sneak in one more hunt with my wife before her surgery tomorrow, we had a beautiful day to go too! The only downside was that the water was extremely high (full moon and/or winds) and she had to spend two hours on a conference call for her work while I was free to search. For the most part we had the beach to ourselves, a couple of people wondered down and were curious about what we were doing so I gave them a quick lesson on the area...a few minutes later one of them came back with a smile on his face and asked if a bone fragment was a fossil. He was ecstatic when I confirmed it for him, his first fossil ever...and he added on to his collection with a few shark teeth as well. I sifted on and off and I found my second complete cow shark tooth, if I keep this up I may challenge @WAHAMA90 for the title of cow shark king (not likely). I've got a couple of unknowns, maybe geologic, take a look and see if you can identify them. Total haul: The "trip makers" My second complete cow shark tooth! Love these! First unknown, reminds me of the turtle stuff I have found up river at Purse. Side 1 Opposite side. Second unknown found by my wife, top (?) side. Side view. Bottom (?) side.
  23. Potomac 5/7/17

    My wife is having surgery in a couple of days so this was her last chance to get out on the water for a few weeks. The river was pretty angry today and we searched on a rising tide, we still had a good time though and I finally was able to find my first complete cow shark tooth. Angry river! Glad the water is warming! Total haul. My precious! Found this and I'm not sure what it is...I originally saw it from this side, had I saw it from the other side I wouldn't have even gave it a second thought. Maybe part of a drum plate? Here's the other side...looks like a rock.
  24. Found this yesterday at Brownie Beach, Maryland. I know it's from a Cow Shark, but I'm not sure about the specific kind. Any ideas?
  25. sevengill cow shark

    This near perfect Notorynchus is a male, lower tooth.
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