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  1. bthemoose

    Douglas Point 10-17-21

    After going several weeks without fossil hunting, due to weather, schedule, etc., I finally made it out to Douglas Point (Paleocene, Aquia Formation) in Maryland this morning on a very pretty, cool autumn day. My first fossil find of the day was a small piece of ratfish plate. Below is my first shark tooth of the day (a sand tiger, like the vast majority of teeth found here). By the standards of this site, the quantity of shark teeth was low today, but they were in better than average shape, which isn't a bad trade off. Many appeared to be fres
  2. Chodge613

    Aquia Formation Bone Fragment

    Here I have attached pictures of a recent find I made in Maryland’s Aquia Formation. It’s a Paleocene bone from what I think is a turtle. What do y’all think? It’s very thin whatever it is.
  3. bthemoose

    Maryland Paleocene sand tiger tooth

    I found the tooth below a couple of months ago at a Maryland Paleocene (Aquia Formation) site. Am I correct that it's Hypotodus verticalis? Thanks in advance for your help! The tooth measures just under 28 mm on the slant.
  4. bthemoose

    Douglas Point 6-4-21

    I went out to Douglas Point (Paleocene, Aquia Formation) in Maryland yesterday to see what fossils the recent rains helped bring out. I tried last weekend as well, but I didn't find a ton as it was too close to the storms and the Potomac River was running choppy and high with little beach exposed, even at low tide. Yesterday the water was calmer and lower and I had a more successful hunt. It's definitely the time of year for snakes! (They're almost all non-venomous around here.) I encountered this one a few minutes into my hunt and saw four others throughout the day.
  5. bthemoose

    Paleocene bone

    I found the small bone below yesterday while out at Douglas Point in Maryland, which exposes the Aquia Formation (Paleocene - Thanetian). It has the look and feel of fossilized bones from the area and it passed the burn test, so I'm fairly sure it's a fossil. This is the most complete bone I've found at this site. Any ideas what it might be from? Side 1: Side 2: Side 3: Side 4: Ends:
  6. Snaggletooth19

    Douglas Point Shark Tooth ID Help

    Went out to Douglas Point (Potomac River, MD, Paleocene, Aquia Formation) on June 5th, first time taking the kids and we had a great time. Found a lot of sand tiger teeth as is typical. But this one has me a little stumped. The crown seems too wide at the base to be a sand tiger tooth. Could it be a small or juvenile Otodus? Or is it some kind of sand tiger after all?
  7. bthemoose

    Otodus obliquus parasymphyseal?

    I found this perfect little tooth today along the Potomac River in Maryland (Paleocene, Aquia Formation), which I think may be an Otodus obliquus parasymphyseal. The root isn't as oversized as megatooth shark parasymphyseals I've seen posted elsewhere on the forum, but it sure looks like an Otodus, is laterally compressed, and is quite tiny compared to other Otodus I've found. @MarcoSr, @siteseer, @Al Dente, and others, what do you think? This tooth bears similarities to another I found from this location several weeks ago (tooth on the right
  8. bthemoose

    An Otodus kind of day

    I made a trip out to Douglas Point today and had one of those incredible fossil days that just makes you want to head out over and over again. There were two cars in the lot already when I arrived early this morning but their occupants must have been up to something else because I never saw them and I had the beach all to myself for most of the day. It was a chilly but beautiful morning on the banks of the Potomac. There's just no better sight at Douglas Point than a nice Otodus obliquus tooth waiting for you in the sand.
  9. bthemoose

    Purse State Park 4-5-21

    I was able to get out to Purse State Park this morning for a Maryland Paleocene (Aquia Formation) hunt. I usually prefer the nearby Douglas Point when I hit the Potomac River but I decided to give Purse a try as I haven't been to that stretch in a while. I was the second car in the lot but first on the beach, which is always the best way to start the fossil day. My first good find--a croc tooth, though the enamel is very worn: Followed by an Otodus -- also quite worn but a decent size for the site (approx. 1.25"):
  10. I've wanted to put together an artificial tooth set of Striatolamia striata from the Aquia Formation in Maryland for a while given the abundance of that species in the formation. Until recently, though, I was missing a lot of the less commonly collected tooth positions--extreme posteriors, intermediates, and first lower anteriors. After searching through several gallons of Potomac River gravels over the last couple of months, I finally filled in the gaps. I put together the tooth set below a few days ago and just finished mounting them in a riker box I received in the mail yesterday.
  11. bthemoose

    Unusual shark teeth

    I went out to Douglas Point (Paleocene, Aquia Formation) in Maryland yesterday and found a couple of unusual shark teeth. The tooth on the left is about 1.5 cm long and I'm pretty sure is a pathological Striatolamia striata. The tooth on the right looks a bit like an Otodus obliquus or Cretalamna appendiculata to me. Since it's only 1 cm long, Cretalamna might be the better guess. I'd appreciate any thoughts on the IDs. Thanks! Here are some more views of the sand tiger on the left. The root is both relatively large and very flat. It appears to be chipped i
  12. bthemoose

    Douglas Point 3-7-21

    I made it out to Douglas Point on the Potomac River yesterday morning for a chilly Maryland Paleocene (Aquia Formation) fossil hunt. Temperatures started in the upper 20s Fahrenheit and eventually climbed into the more comfortable 40s though by that time the tide had substantially come in. The banks of the river were ice free but the sand was hard packed and frozen. The pickings were fairly slim by this site's standards, which means I found dozens rather than hundreds of shark teeth over roughly 4 hours. No spectacular finds on this trip, though I found a decent enough variety, and
  13. KcLu

    What is this?

    This was found at the Virginia/Maryland Aquia Formation, Potomac River. It’s about 3 inches (7.6 cm) long and 1.5 inches (3.8 cm) wide. I have an idea of what I think/want it to be but would like the opinion of someone more experienced. Thanks for any help!
  14. bthemoose

    Potomac River Micros

    I recently brought home a gallon bag of Potomac River gravels (Paleocene, Aquia Formation), and have been searching through them for micros using my new digital microscope (the quite reasonably priced Plugable USB 2.0 Digital Microscope, which several others on TFF have recommended). I've found a number of shark teeth and have tentatively IDed many of them, though would appreciate corrections or confirmations, as well as thoughts on the unidentified ones. The tick marks in all of the photos below are millimeters. Thanks in advance for your help! 1. Abdounia
  15. For years I’ve had my macro fossils in drawers and my micro fossils in gem jar displays. Recently I’ve started putting some of my macro fossils in 8”X12” Riker mounts. Below are the Riker mounts that I now have. I’ll probably put together at least twenty of these. Below are two Riker mount displays with specimens from the Paleocene Aquia Formation from the Potomac River in the Liverpool Point, Maryland area. This display contains in the top crocodile vertebrae, a couple of crocodile leg bones, and two crocodile coprolites. I have larger crocodile vertebrae but they
  16. I’ve recently bought some fossil shark teeth online to expand my collection beyond the local Maryland fauna (Miocene from the Calvert Cliffs and Paleocene from the Potomac River/Aquia Formation), and it occurred to me that perhaps there are some forum members who would be interested in sharing some of your finds or extras in exchange for mine. The things I have to offer are shown below—mostly fossil shark teeth and a few other things. These aren’t all perfect, but there’s a good variety, including some less common species. I’ve collected most of these myself and have also listed a
  17. bthemoose

    Otodus obliquus?

    I found the tooth below this morning at Douglas Point (Aquia Formation, Paleocene) in Maryland. The cusp is fairly narrow, it's missing one cusplet and the other is small and/or worn down. But between the prominent lingual protuberance and what looks to me like a small bourlette, I'm getting an Otodus obliquus vibe. What do you think? I also found a tiny Cretalamna appendiculata -- just over a quarter of an inch.
  18. sharkdoctor

    Eagle ray tooth plate partial?

    Found this partial ray tooth plate in January while fossil hunting in the Aquia Formation along the Potomac River. Does this look like Myliobatis dixoni to you? I am terrible at identifying ray teeth, so really not feeling certain about that ID.
  19. Petalodus12

    Aquia Formation bone fragment

    Hi all, I found this chunk of bone at Purse State Park this November. It is from the Aquia Formation, which is of Paleocene Age. I was wondering if it could be identified to either crocodile or turtle, considering that these are the only two bony vertebrates that exist in large amounts in this formation. Or, of course, it could be nailed down to chunkosaurus status considering that it is relatively worn and isn’t very large. Thanks in advance!
  20. Jeffrey P

    Otodus from the Aquia Formation, Maryland

    From the album: Tertiary

    Otodus obliquus Mackerel Shark Tooth Paleocene Aquia Formation Douglas Point Charles Co., MD.
  21. From the album: Tertiary

    Shark Vertebra Paleocene Aquia Formation Douglas Point Charles Co., MD.
  22. From the album: Tertiary

    Crocodile scute Paleocene Aquia Formation Douglas Point Charles Co., MD.
  23. kate_rose

    Stratolamia striata?

    Hello, I am new here and new to fossil identification. These are shark teeth from the Aquia formation on the Maryland side of the Potomac. They come from Charles County. I have shark teeth of the world and so my IDs are based on that and the internet. I think all of these are Stratiolamia striata based on the grooves. Ruler is in mm and squares are 1/4" on each side. The last picture with only 2 teeth nearly touching seem different to me in that the striations don't extend very far up onto the teeth (unlike the others where they cover much of the crown. I am not sure if S. m
  24. kate_rose

    Mystery Shark's teeth

    Hello, These are also from our hunt in the Aquia formation of Charles Co. MD. Sharks of the world didn't give me much insight. The only species that I noticed where the enamel extends out on to the roots like this is the extinct goblin shark Anomotodon novus. I definitely have some teeth from that species I think but these are substantially different. These are larger, more robust and the have the cool extended enamel and bumps/cusplets on the shoulders of the labial side. Any thoughts?? (ruler in mm and squares 1/4") Kate
  25. Hello All! I found this shark tooth at Purse State Park in Charles County, MD. Located on the Potomac River, these fossils are from the Aquia Formation. As a novice fossil hunter, I would love some help in identifying this tooth. Is this a Cretolamna sp. (appendiculata?) or Otodus obliquus? Thanks so much in advance! ~Natalie
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