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Showing results for tags 'cretaceous'.
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Well....I am really trying my best to figure out this Cretaceous Fish Tooth thing vs Reptile Tooth but I keep getting stumped, So here is another tooth that I am not sure if it's fish or maybe reptile? Plus a couple of shark teeth that I would like confirmation on my ID. PLUS a really cool little sawfish tooth that just seems....different...than the usual Ptychotrygon. Any thoughts are appreciated! Eagle Ford Formation 1. Size 1/4 inch 6 mm It does seem to have a carina ridge but it also has one side slightly sheared off. 2. I have tentatively ID'd the top tooth as Cretodus semplicatus due to the striations on the blade. The second tooth looks so similar, but no striations so is it Cretolamna appendiculata? Size 1/8 3mm 3. Is this a pathological Scapanorhynchus? 4. This tiny little sawfish tooth is one of the most beautiful things I've ever found. The little decor on it is amazing. Is it a Ptychogrygon triangularis which are so common in Post Oak Creek? Plus I just want to show off this amazing piece - I think it's a Gastropod Baniformis that has been entirely replace by crystals!
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- cretaceous
- post oak creek
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co., NJ, 2022© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co., NJ, 2022© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co., NJ, 2022© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook, Monmouth Co., NJ, March 2024© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook, Monmouth Co., NJ, March 2024© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook, Monmouth Co., NJ, March 2024© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook, Monmouth Co., NJ, March 2024© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co, NJ© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co, NJ© Chris Vanderhoof
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From the album: NJ Cretaceous Brooks
Collected at Big Brook Preserve, Monmouth Co, NJ© Chris Vanderhoof
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From the album: Invertebrates
Enicocephalidae non det. Middle Cretaceous Mogaung Myanmar -
From the album: Invertebrates
Ixodoidea non det. hard tick Middle Cretaceous Mogaung Myanmar -
Found about a week ago at Big Brook.
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At the same location as I found a tiny Mosasaur tooth (probably Russelosaurus in Austin Chalk Formation) I just found this little tooth. It seems to have the basic qualifications - curved with ridge on the outside curve but it doesn't have the enamel striations I associate with mosasaur. It really looks more like a crab claw to me, but it doesn't have any other crabby characteristics except for shape and that ridge gives me pause. Are there any fish teeth that look like this? Any thoughts, y'all? 1/4 inch
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I found this small and delicate, nearly intact marine reptile bone in Big Brook yesterday, and I'm wondering if anyone can identify it. The bone is just under an inch in length.
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Usually, I wouldn't ask about anything quartz from Big Brook, since I've never heard of any fossils there being agatized or any other type of quartz preservation, but I found two pieces on my most recent trip that have me really confused. The first has lots of wrinkles and folds with tiny open pocket structures that are growing druzy crystals all over in a pattern that looks like some agatized corals I've seen. The second has no openings or druzy, but has the same soft folding texture and looks almost exactly like a shriveled plum, with an incredibly soft, velvety texture on both the high AND low points of the surface. Are these just weird rocks, or could there be something more going on here?
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Hi All, Thought I would share some fossils I have displayed around my office as well as several display cases I've put together. Some of the items I've purchased, and handful from members on here. Majority of the items I've personally collected. I just started in May 2023, and so far have been able to hunt for fossils from the Ordovician to the Pleistocene, in 6 different states. Thanks for looking! Few photos of the office setup. Hoping to eventually put into a display cabinet.
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- cretaceous
- Devonian
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I found it yesterday, comes from the Coleraine formation of northern Minnesota. Im not sure if it’s a fossil like maybe a burrow, possibly a bone, or just a plain concretion (the concretions here often take on weird shapes).
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I recently found this crocodile tooth from the Elrhaz Formation for sale, and I was wondering whether it would be possible to identify to a genus or species level. It would appear that the only crocodilians in the Tegama group that had teeth even remotely similar to the one shown below are Stolokrosuchus and Sarcosuchus. Though insofar as I can see Sarcosuchus had much more robust teeth than Stolokrosuchus, it would appear that there is much variation, so I thought it would be worth running it by the experts first. Thanks in advance for any guidance Othniel
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Hi all, These fossils are from a trip I recently took to Big Brook, NJ (Cretaceous, Monmouth Group) in March. I also found a great mosasaur tooth and a beaver tooth on this trip, which I've posted elsewhere. I know this lot is a bit random, but I'm hoping there might be some light shed on them. I'm especially curious on the ridged appearance of #2. For #6, I know they are all small bone fragments. Is there any way to tell dinosaur bone from aquatic reptile bone? For #7 I admit I'm not sure if it's a fossil or just a neat concretion. Thanks to any help! Chris
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I recently came across this mosasaur tooth from the Ozan Formation for sale, and wondered if it would be possible to identify to a genus or species level. It measures around 1.5cm from the tip of the tooth to its base. It is my understanding that @pachy-pleuro-whatnot-odon is something of an expert on marine reptiles. What do you make of the tooth? Thanks in advance for any proposals Othniel
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- cretaceous
- mosasaur
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Any idea on what genus this could be from? Or, if it even is a crocodile after all? This tooth was previously IDed as a crocodile but others claimed spinosaurid. The tooth is late Cretaceous in age. It's from the Kem Kem Phosphate Beds in Touz, Kem Kem Basin, Morocco.
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- cretaceous
- kem kem beds
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The first of these (the dark black one), I found last year and I was told by Dana Ehret of the NJ state museum that it was most likely a fish scale fragment, and that it could possibly be from a gar. After looking up gar scales, however, it has never seemed like a perfect fit for the shape. A few days ago, I made a trip to the brook, and found the second tan specimen. The pattern in the enamel looks very similar (though not identical) to the first, so I thought this could be another fish scale. Since I hadn't adequately satisfied my own curiosity about the exact species of the first, I figured I'd post photos of both and see what people think.
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I've collected in the New Jersey brooks for a long time now, and I've found a few pieces of dinosaur material over the years, but I'm interested to know if there are any other public land collecting sites in the US where one can find (and keep!) dinosaur material.
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