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Showing results for tags 'cretacous'.
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From the album: Proudest finds
Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."-
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- cretacous
- hadrodus hewletti
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From the album: Proudest finds
Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."-
- 1
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- cretacous
- hadrodus hewletti
- (and 1 more)
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From the album: Proudest finds
Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."-
- 2
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- cretacous
- hadrodus hewletti
- (and 1 more)
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From the album: Proudest finds
Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."-
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- cretacous
- hadrodus hewletti
- (and 1 more)
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Hey all, Made two trips to Ramanessin Brook that I have yet to share. The first trip provided much of the same stuff I had already had but did yield me an amazing sawfish rostral tooth. The most recent trip (8/17/21) is where the majority of what I wanted to share was found. Sawfish rostral tooth Pycnodont Fish Angel Shark Hybodus Shark Bone Material Goblin Shark Mosasaur? Mosasaur
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I ventured to the NJ brooks last weekend and made it to both Big Brook and Ramanessin Brook (Cretaceous, mix of Navesink and Mt. Laurel formations I believe). I found a few goblin and crow shark teeth, but need some help with ID for a few other finds. Thanks in advance for any help! Here are some detailed images of each. #1: concretion, or tooth? #2, definitely looks like a vertebra, but for a fish or shark? #3 also looks like a vert, or is it another concretion? #4: I found a few like this, but can't tell if it's just a weird concretion or some kind of plate or scute? #5 Looks like something in matrix #6 looks like some kind of small reptile tooth to me. It's a little hard to tell, but it does have a worn enamel appearance and some worn ridges on two sides. #7 of course is a pretty large shark tooth, but it's a bit worn and hard to tell from what genus/species. Looks a little like a goblin, but the base near the root is so wide. #8 might just be a concretion, but it did have a terestrial animal tooth appearance to it #9 looks like a tooth, but I can't place whether it's a fish or reptile? #10 looks like part of a vertebra? #11 looks like part of a plate or reptile shell? And last #12, pycnodont? bone?
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Hello everyone. I recently bought this heavy piece of Mosasaur spine in matrix. During transport the top of one of the vertebra got smashed to little pieces and dust (not the sellers fault, it coulnd't be packed better). The fossil now shows the inside of the vert (wich is also beautiful to my opinion). Where the piece broke off the fosfat stone is quite soft though. Should I stabilise/fixate it and how can I do this? Thanx for tips! Jerry
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Do not know the age and possibly from Madagascar it’s around 6cm long and 7cm in diameter
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This little thing may be too small and too busted up to ID, but it's just really lovely. I'd be happy for any info. Found near Canyon Lake, Glen Rose Formation. Thanks y'all!
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Echinoid Jackpot! 7 species! 3 need help ID'ing - Texas Cretaceous
JamieLynn posted a topic in Fossil ID
I found "A SPOT" finally!! Found 7 species of echinoids, and am over the moon! I am able to ID some but not all. Could use a little help please! Location: Comal County near Canyon Lake TX. Cretaceous Glen Rose. I'll post pics of the others i have tentatively ID'd in the comments post, I would appreciate confirmation on those too. Here are the ones I am not sure about: I thought these first ones were Coenholectypus, but they are very "off center". But they could just be squished. Is this Pseudodiadema perhaps? Perhaps too small and busted up a specimen to ID. Thanks for your help!!
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I have decided to take a break from shells and delve into the vertebrate world for awhile. In going through several trips worth of North Carolina Cretaceous material, I came across this incomplete tooth which I believe is from a mosasaur. Reading through prior posts I know how difficult they are to identify but I am hoping that there are enough distinguishing characteristics to be able to identify by genus. The size of the tooth is 12 mm x 12 mm x 6 mm. I took pictures with my iphone so if the consensus is better quality pics are needed, I'll drag out the DSLR.
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Today I called the Army Corps of Engineers to get a permit to collect at the Waco Pit. I was told that there is a limit on how many fossils you are allowed to keep. The limit per day is two. I thought anyone planning to collect there should know this.
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Ralph Johnson of MAPS and Bill Shankle of DVPS and I filled in for Carl Mehling of AMNH in NYC to lead a trip of a AMNH sponsored trip to Ramanessin brook this past Thrusday . At first we became concerned when the bus had not arrived on time and Ralph and I went looking for them just in case they were parked at the other school down the road and when we came back we noticed a yellow school bus parked at the other end of the lot and I mentioned to him they the bus looked empty or that they maybe all little people and when we got closer we noticed that they were all middle school kids all 23 of them.....we were not expecting a bus load of kids ....Ohhh Boyyyy. No wonder Carl couldn't make it......LOL Good thing we had a bunch of extra screens and shovels with us. At first they didn't find much and the kids started to lose interest so I started grabbing the screens and filled them up and set them on the gravel bars and told them to start looking threw them and soon after they started finding teeth and before you know it most of them were finding fossils and I couldn't keep up with the demand for new loads of screens filled with the stream matrix All in all we had a great time...I know I did. I even found a nice Ischyodus Bifurcatus
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I have finally found the courage to display just 3 of the fossils that I have...as I am just a "baby" in terms of even the novice hobbyists. I cannot guarantee that they are all completely clear of matrix material. I am concerned that my as of yet limited knowledge, could/would likely negatively affect the "Arrested Beauty" that has been set before us; as a "annal" before before written language. These fossils were found at home, in my backyard near Maple Valley in King County Washington. As I have said before, I am new at this, but as far as I can tell from the limited information I have found in my search for clues, the area where I live has formations from the Mesozoic, Jurassic and Cretaceous periods. My best educated guess (if you can call mine educated), is that at least number 1 and 2 (from left to right) are foot/hand bones from a Pterosaur. I am fairly confidant that #3 is one end of a femur. Unsure of the animal given that to me, they all look so very similar. I am absolutely not confident enough to make a guess as to the specific species. I am skeptical of my general assessment, given that I have found no evidence that any other fossils of the like have been found in the area; immediate or otherwise. I have also found what I believe to be small diameter pieces of fossilized ivory/tusk here. With that being said, please be gentle. I keep talking myself out of even posting these out of fear of making yet another fool of myself (only in a different way). I defer to my much much more experienced peers. Please do let me know if any other angles, etc. are needed for identification.
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Hello. I was wondering if anyone here could identify this tooth from Morocco. It is from the early- middle cretaceous. I don't really know much else as like most fossil from Morocco, the exact location where they came from in unknown. With that said one of the interesting details with the tooth is that is has a ridge running along the sides. The picture you can see it best in is picture 2 but it doesn't show up that well. If there are any more questions about the fossil please ask me and I will try to answer them as best as possible.
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SQUALICORAX?
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