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Showing results for tags 'cretaceous'.
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From the album: Cretaceous Shark Teeth
Cardabiodon venator from Kansas -
From the album: Cretaceous Shark Teeth
Cardabiodon venator from Kansas -
From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi -
From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Mississippi -
From the album: Cretaceous Shark Teeth
An interestingly shaped Cretoxyrhina mantelli from the Ryazan Region of Russia. Cenomanian in age. -
From the album: Cretaceous Shark Teeth
An interestingly shaped Cretoxyrhina mantelli from the Ryazan Region of Russia. Cenomanian in age. -
Hi everyone !!! Recently I found this fossil in lower cretaceous sediments and I cleaned it , but I'm not sure what is it. Seed? Plant fragment? bone? What do you think? Lower cretaceous (Aptiense-Albiense) Continental sediments. Regards Juan
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Hi What is fossil it? Campanian Poland
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I know this is a Exogyra oyster, but part of the fossil has been broken off. On the end, it seems to show fossilized flesh? What is that long thing? Internal flesh?
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Hi everyone, I have this interesting tooth from the Wenonah formation (Late Campanian) of New Jersey. It matches best with Cretalamna, but it has a nutrient groove and one of the cusplets has a “crown” around it. It is 5/8 inches. It is the first of this tooth type I had ever seen being found, so I am basically baffled as to the species. Any help is greatly appreciated! @siteseer @MarcoSr @Al Dente @MikaelS @sagacious
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I found this long cylinder sticking out of the creek wall few weeks ago. I had no choice , but to break it from the rock. Ended up in several pieces. I'm not quiet sure 100 percent what this is. I searched the forum, but can't figure out other than Rudist.
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Any ideas? Out of the eagle ford of north Texas. 85-90 mya.
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Hi Eveyrone! I know that ID'ing bivalve steinkerns is difficult if not impossible. But these are such an unusual shape. I have not found anything in my hunting - and I've found a LOT o bivalves. These are from Blanco TX - Glen Rose formation. They look like a bit like Trigonia (or pterotrigonia) in shape but not quite so "fortune cookie" curved , but have the really dramatic "underside" of something like an Artica. I do not have the Houston Gem and Mineral Society book on Bivalves, so if anyone does...would you mind seeing if you can find this one? It is really intriguing me! Thanks!!
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Fun hunt yesterday. I found some huge broken sawfish teeth, shark teeth, enchodus jaw and teeth, mosasaur verts, big heart clam which I've never found in the Sulphur river area and a killer petrified wood Gary point. It got hot around 2PM so I got out early.
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Really not sure what to make of this type of bone? Any ideas?
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I think this is a piece of a crab, perhaps the ”torso”? I found a paper with crabs from Kristianstad basin, but only images of claws, and it is not part of a claw from what I can tell? https://sp.lyellcollection.org/content/434/1/241 The crab in the paper is named Protocallianassa. What do you think?
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After practically years of scouting properties in my area, I’ve finally found a decently productive site. To start, will just be some neat info about the site.
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Sieved through some matrix the other day and found this little specimen that I thought worth sharing. The scale is in .5 mm so specimen is 4 mm long so fairly small This is a toe bone from a bird about 100 million years old. It is unusual but the bias towards toe bones from this area is high go figure. The matrix this came out of is marine. Enjoy Mike
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Have been prepping out a few bits and pieces encased in matrix to see if anything interesting. This is from the Toolebuc formation in Central Queensland Australia. The formation is Albian about 100 million years old. My best guess is this is a skull piece (partial quadrate) the bit the jaw hinges on from a marine reptile. There appears to be three teeth socket points looking at what I assume to be the bottom. The problem with that idea is they are only 5 to 10 mm deep and too close to the hinge point. The specimen is only a partial bone but hoping complete enough for someone to recognise to the general species from photos. Thanks for all feedback in advance. I may need to retake some photos from slightly different angles. Mike
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Hello everyone again. About a month ago, while I was fossil hunting in local Dallas creek, I came across what looked like a prehistoric burnt wood that has been exposed by creek water. When I looked at it, other half of the wood was missing and washed away. Other half was embedded into a rock as you can see on the picture, part of the wood was petrified and other half was in carbonized form. It smelt like sulfur / burnt wood. I dug it out and kept the wood in my collection, but some still remains in the limestone. It was very strange that single burnt fossilized log was embedded in the limestone layer and petrified like that. Has anybody seen something like this?
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I found this little tooth crown at a conglomerate site in the Lance formation a couple weeks ago on my fossil hunting excursion with Paleoprospectors. I wasn't sure what it belonged to, at first I thought it was a small Triceratops crown but under further examination I think it could belong to another herbivore. I looked at @Troodon's post on Leptoceratops from hell creek and saw similarities to the maxillary teeth. I wanted to know what some of the dino people thought about mine. It broke when I was trying to prep it out so the sheen is from the glue I used to put it back together. The tooth is about half a centimeter in height.
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Hello everyone, I've been doing some creek fossils hunting in Dallas area recently and came across/found numerous bones in pieces. Not sure what these vertebrate bones these belongs to, but they are 12 inches or smaller and looks like mostly arm or leg bones. These animal used to swim, crawl around here around 140 to 66 million years ago. Buried in Eagle Ford Shale or Austin Chalk limstone layers about 10 to 20 feet down from top to bottom in the creek layers.
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Need help with ID please. Cretaceous or Paleocene in Maryland
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I've been wavering back and forth as to whether this is a Carcharodontosaurid tooth, or possibly something else? The serration shape doesn't immediately scream Carch to me, and the mesial carina extending 2/3 down the mesial face would usually exclude abelisaurids from the mix (along with the concave distal edge). There does appear to also be a "pinch" at the base, judging by the lighting in the photo and what little can be seen of the cross section (unfortunately, this is the only photo available). Any input would be great to help me put this one to bed!
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