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References: Cicimurri, D. J., & Knight, J. L. (2009). Late Oligocene sharks and rays from the Chandler Bridge Formation, Dorchester County, South Carolina, USA. Acta Palaeontologica Polonica, 54(4), 627-647. Gale, B., Gale, P., & Gale, A. (2020). A Beachcomber's Guide to Fossils. University of Georgia Press. Miller, A., Gibson, M., & Boessenecker, R. (2021). A megatoothed shark (Carcharocles angustidens) nursery in the Oligocene Charleston Embayment, South Carolina, USA. Palaeontologia Electronica, 24(2), 1-19.
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The New Rarest Shark Tooth in My Collection: Lower Glen Rose
Mikrogeophagus posted a topic in Fossil Hunting Trips
Today I took a spur of the moment trip up to the Canyon Lake area for some hunting in the lower Glen Rose. My first venture into the region took place last year and was only a limited success in that I scored a measly two micro echinoids. The plan for today was to try some new spots in hopes of striking the perfect layer of echinoid diversity. The first site was a complete bust, but the second immediately showed promise when I noticed the ground was littered with broken bits of thin echinoid test. Because I had arrived so close after the recent rains, the ground was still a sticky slop of Glen Rose mud. The combination of running along the slopes and frequent crouching set my calves on fire, but the scent of urchins kept me on the chase. Very quickly I was lucky to encounter some really nice crab claws from Pagurus banderensis. A couple had both pincers still preserved. Surprisingly common was also the tiny crushing dentition of Pycnodont fish. They aren't all that interesting to look at, but the simple fact that vertebrate material was present gave me daydreams of finding an elusive Glen Rose shark tooth. I tried to shake away such a hopeless goal, but it continued to sit in my mind. After a couple hours, I found an Amiid fish tooth and some star-shaped Isocrinus annulatus columns. For whatever reason, I could not find a single echinoid spine, let alone a complete test. I was searching the ground very closely, so my thinking was it may be more to do with the site than myself. As I was doing the usual close inspection, I snuck up on a black figure nestled securely in a pile of Glen Rose matrix. It took a moment to register that I wasn't looking at just another chunk of black bug. I safely stashed the two pieces of Polyacrodus. Sadly, the third fragment was nowhere to be seen despite my best efforts. After finding some more crab claws it was time to head out. On the trek to the car, I spotted a Trigonia whitneyi? clam, maybe from the upper Glen Rose. I'm not sure what species this is. I see Polyacrodus aff. parvidens is described form the Texas Albian up north. Other than that, there doesn't seem to be much info. I've seen some discussion on Polyacrodus brevicostata being a possibility as well. Top L to R: Trigonia whitneyi? and Pagurus banderensis Bottom L to R: Amiid tooth, Pycnodont teeth, Isocrinus annulatus It seems my streak of urchin unluckiness has continued, but I'll take a Polyacrodus any day of the week! -
Found them lined up like this in Pierre shale sd. Never seen verts like this before but heard shark vert are flat like this. Any insight would be great!
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Hello , I have this Basilosaurus tooth in my collection and found today something very interesting in the surrounding matrix : a tooth ! But from what ? I've prepped it a little bit to have a better Look at it . Can someone identify it maybe ?
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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- angustidens
- oligocene
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From the album: Fin Lover's South Carolina Finds
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I know its small but I found this tooth a while back and had forgotten about it so while looking through my trips smaller teeth I found 3 Carcharoides totuserratus which i didn’t know were rare until watching one of blackriverfossils videos. So I was wondering what kind of tooth this is and if anything rare? The last photo is the Carcharoides totuserratus I was talking about.
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I just got a package today of fossils from Morocco. Most were just your common mosasaur and otodus teeth, etc. But this one just doesn't look right. Can someone please help me identify it? It looks like a rather wide Otodus tooth but has a prominent ridge running down the middle. It also has a very large root and the tooth sits on quite an angle from the root. Appreciate any help. It is 2 1/2 cm across at the root.
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From the album: Miocene, Maryland and Virginia, USA
Calvert formation Calvert co. Maryland.-
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- carcharhinus
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aff. Agassizodus corrugatus, Finis Shale, Graham Fm
Mikrogeophagus posted a gallery image in Member Collections
From the album: Virgilian Series
aff. Agassizodus corrugatus, Jacksboro Finis Shale, Graham Fm Feb, 2023-
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From the album: Desmoinesian Series
"Deltodus" sp., Central TX Strawn Group Undivided Sept, 2022 This was my first Pennsylvanian shark tooth. -
From the album: Fossil Collection: DC Area and Beyond
Carcharodon carcharias Holden Beach, NC Unknown Unknown- 1 comment
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- carcharodon carcharias
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Hi all, For a few months now, I occasionally go searching for shark/ray teeth in an old industrial area in Aruba. I found hundreds of smaller shark teeth (probably carcharhinus) and a handful of very cool & much larger teeth (likely otodus angustidens). This morning, I went walking the dogs there and stumbled upon a chunk of a much larger tooth! Could it be the megalodon? it could be a larger specimen of an O. Angustidens but the proportions are not quite the same… I'll let the experts judge for themselves. The (almost) complete O. Angustidens tooth in the middle is 2’1 inches (5,3 cm) long.
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- angustiden
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Soler-Gijón, Rodrigo. (2000). Phylogenetic relationships of LebachacanthidaeSoler-Gijón 1997 (Xenacanthiformes; Elasmobranchii). Paläontologische Zeitschrift. 74. 363-377. 10.1007/BF02988107. This fossil shark was found in the 1980's. Accompanying Fauna: several kinds of Acanthodier such as Westrichus kraetschmeri and Acanthodes gracilis; Aeduella blainvillei (a boney fish); and Apateon pedestris.
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- freshwater shark
- lebachacanthus colosseus
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Identification reference material for shark teeth from Purse Area, MD?
ebfossilhound posted a topic in Fossil ID
Hi all, I have probably around 500 shark teeth from Purse in Maryland. I’d really like to try to ID and categorize them, but I can’t seem to find a comprehensive source and a lot of the internet sources don’t have very good pictures. Does anyone know of a good resource to use for this? A book would be great.- 5 replies
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From the album: Fin Lover's South Carolina Finds
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Striatolamia? Middle eocene age, Dammam formation, midra shale member in Qatar
deltav2 posted a topic in Fossil ID
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From the album: Fin Lover's South Carolina Finds
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Over the weekend I found this tiny (~3mm) shark tooth on a loose rock at a site exposing the Duck Creek Formation (and maybe the overlying Fort Worth Limestone). I have tried to match it with the teeth in The Collector's Guide to Fossil Sharks and Rays From the Cretaceous of Texas but the closest I have been able to get is Squalicorax sp. and even that doesn't seem to quite match and the book states that Squalicorax in the Texas Albian have only been found in the Weno and Pawpaw Formations. Unfortunately it only seems like the blade of the tooth is preserved as there is a bit of a lip where the blade hits matrix. I haven't attempted to prep it yet so there could be root there, but I doubt it. Does anyone have any thoughts on what shark this tooth might be from? Any help would be greatly appreciated.
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- cretaceous
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If you know anything about modern white sharks, how big are teeth of this size? The size is 58mm. How big was this great white shark? Are great white shark teeth of this size large?
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- carcharodon
- carcharodon carcharias
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Found these teeth from Batesford Quarry which is late Oligocene to middle Miocene. I am confident that they are C. Hastalis but would appreciate a second opinion.