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Showing results for tags 'Mosasaur'.
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Dear All, One of the first fossils I acquired (this year) was a small Mosasaur jaw piece from Morocco. The dealer who I bought it from wasn't entirely sure of the species but carefully suggested it was Mosasaurus beaugei. Having now seen some teeth of M. beaugei, I'm not at all certain this identification is correct Rather, to my untrained eye, it seems to match more closely with some examples of Eremiasaurus heterodontus teeth I've found online. I'm far from an expert, however, so any help would be much appreciated! I have no exact location for where the piece was found, other than 'Spanish Sahara Morocco'. The teeth are between 22 and 26 mm long. Kind regards, Nick
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Real or fake mosasaur jaw
ruminate posted a topic in Is It Real? How to Recognize Fossil Fabrications
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@jnoun11 @pachy-pleuro-whatnot-odon Could this tooth be stelladens? I have no idea what species it is but the carinae on the side makes me wonder if it's Stelladens
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Fossil marine vertebrates from the Upper Cretaceous of Akkermanovka
Praefectus posted a topic in Fossil News
Fossil marine vertebrates (Chondrichthyes, Actinopterygii, Reptilia) from the Upper Cretaceous of Akkermanovka (Orenburg Oblast, Southern Urals, Russia) Jambura et al., 2023 https://www.sciencedirect.com/science/article/pii/S0195667123003075?via%3Dihub Tylosaur (top), Polycotylid (middle), and Plesiosaur indet. teeth from the southern Urals.-
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Mosasaur Tooth Identification - Navesink Formation (Monmouth County, NJ)
Masonk posted a topic in Fossil ID
Hi All, Last week I found this Mosasaur tooth in one of the Brooks in Monmouth County, NJ (Navesink Formation - Late Cretaceous). While in the brook, a guide from the Monmouth Museum was onsite leading a small group of college students. He identified the tooth as Halisaurus platyspondylus. Had a great conversation with the gentlemen as well, so a nice bonus. Another, more experienced individual contacted me after I posted the tooth on a local FB group. He has several similar teeth, and while not completely disagreeing with Hailisaurus, suggested Prognathodon sp. may possibly be a better fit? It's debatable based on conversations he's had with other's more experienced than him. In any case, I figured there must be several Mosasaur experts on here who may be able to weigh in on the subject. Any opinions/discussion is appreciated. I'm still learning, so this is all helpful to me. Thanks in advance!- 7 replies
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- halisaurus platyspondylus
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Hi, what species of mosasaur is this? From the phosphates of Morocco. I will tag you @Praefectus @pachy-pleuro-whatnot-odon. I am thinking Eremiasaurus left dentary with some stuff?
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A Few More Potential Fakes
Lucid_Bot posted a topic in Is It Real? How to Recognize Fossil Fabrications
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From the album: Texas Campanian (Cretaceous)
Two Mosasaur caudal vertebrae Campanian Texas These two caudal vertebrae, found in the same stream, demonstrate some of the size variation seen in mosasaurs. Notice the two pits of the bottom vert - those are for the haemal arches, and with no other bony attachments except for the base of the neural spine (on the other side), we can infer that this vert came from close to the end of the tail, probably putting its owner in the 30+ foot range. Alternatively, though very worn, it seems that the smaller vert came from a position closer to the pelvis (though still caudal). Likely from a juvenile of what had to already have been a different, very small species.- 1 comment
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Recently I took a trip to a new spot in the Maastrichtian of Maryland. I did not manage to recover too much vertebrate material, though I have been quite intrigued by one piece that I collected. The main question regarding this piece is whether it is bone or whether it is simply a suggestively shaped rock. If it does turn out to be bone, would it be possible to determine what it may have come from? The main marine reptiles that are recovered from these deposits are mosasaur and marine turtle. A few photographs of the specimen in question. If better photographs are needed/photographs from a different angle, I would be more than happy to attach some to this thread. Thanks in advance for all suggestions and opinions!
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- bone
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Mosasaur Skull I’d like to acquire
JJ Lavoie posted a topic in Is It Real? How to Recognize Fossil Fabrications
This is what is said to be an authentic mosasaur skull being sold from the location of MOROCCO. They said it was glued from the fossils found at the site. I am really interested in buying it but know they love to fake some fossils there. It doesn’t look like the terrible alligator looking ones I see on online auction site and around other sites. Matches what they normally look like but am not sure if anyone can tell from the pictures provided. -
12.6" Mosasaur Prognathodon Fossil, 2 lbs 6 ounces, 4.7 inches wide, 1.5 inches thick Location- Qued Zem, Morocco Seller doesn’t mention anything about repair or restoration so I’m not sure about that I’m wondering if it’s restored. Are the teeth original to the jaw? And are those bite marks
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Happy almost Halloween! Show us the scariest thing that has ever happened to one of your fossils or something about fossils that is related to halloween. Mine is this. I'd bought a fake mosasaur jaw but I didn't know it was fake. I'd put it in the sink to clean it off and then the whole thing crumbled. I did get some mosasaur teeth out of it though.
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Hello everyone! Yesterday I got a chance to dig in one of New Jersey's famous Cretaceous streams. Once again I planned out a fossilhunt to coincide with my Son's Marching Band competition at Metlife stadium. I have been doing this the past few years as a way to kill two birds with one stone. My wife and I left our house in New York around 5:15 am and arrived at the stream around 10 am. Since my wife has no desire to climb around a stream getting wet and dirty, she left me for a few hours to go shopping. I will say that I had low expectations for this trip. The past few years I have been finding less in the streams. They have become increasingly popular and get searched very hard. I chose to go to a spot that @frankh8147 took me to a few years ago. He told me that in his experience, it produced more reptile fossils then other areas. Indeed i ended up finding my first small complete Mosasaur tooth there the following year, even though i have been hunting these streams since 2006-7? Though that tooth was much smaller then what would come on this dig. So i started off digging in a particular spot that i happen to like. I found a couple small decent sharkteeth right away. I thought to myself that this was a good sign. Well i dug this particular spot for awhile and all i got was small broken bits off sharkteeth for the next hour. So i started randomly picking new spot to dig and things were not looking good. Absolutely nothing. Then i noticed a small gravel bed that was wedged in between some fallen tree branches. I decided to give it a shot. After a few scoops of gravel in the screen I wasn't finding anything. I almost decided to move on, but I had a nagging feeling that I should stay just a little longer. Then after a couple more scoops I looked down a saw a nice mosasaur tooth! I was very excited as this was alot bigger than the first one I found. It has a little tip, and cutting edge damage as well as some missing enamel but from the teeth that I have seen come out of these streams, I am happy with it. After this I decided to dig in this spot longer. I found what I believe to be a beat up crocodile tooth as well as a chunk of rock with gastropod impressions and molds. After this things went dead. I moved around checking other gravel beds and didn't find a scrap of anything except bits of belemnites. I guess this goes to show that even when you think everything has been picked over, sometimes perseverance pays off. Here are some pics
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From the album: Ozan Formation
Globidens alabamaensis, NSR Campanian, Cretaceous Mar, 2023 A shell-crushing mosasaur not uncommon for the NSR. They first showed up in the Early Cretaceous, shortly after the disappearance of ptychodus from the seas. -
From the album: Ozan Formation
Tylosaurus proriger, Fannin Co. Campanian, Cretaceous Aug, 2021- 2 comments
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I recently received some American Mosasaurus (and other) teeth. I would like to identify this, but that is proving difficult. Hopefully we can figure it out together. Tooth number 1, maybe Mosasaurus missouriensis? length: 1.5 centimeters Origin: Tombigbee river, Monroe county, Mississippi, USA Period: Eutaw formation, Cretaceous
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Trio of mosasaur teeth in matrix
Georgemckenzie posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hiya everyone I’m interested in this allocation of mosasaur teeth I know the roots are often faked so any help would be great. -
Hi all - found this in Central Texas. It was a surface find in an area mapped as Ozan formation. Thought it was an old railroad spike at first. Is there enough left of it to give a general ID? Kind of looks like some mosasaur vert pics I’ve seen. Any ideas appreciated. Thanks!
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Hi. New collector here and first time here at the forum. Im trying to collect some mosasaur teeth and realized that Im unable to recocnize Eremiasaurus heterodontus tooth. My first thoughts with this tooth was that its an prognathadon kind tooth (Thalassotitan), but I could use some help so I know was my first thoughts wrong and how I recognize the Eremiasaurus tooth in the future? Never seen any and don't know what too look for. Tooth is 3cm. Quite smooth cutting edge on a front. Moroccon. Thanks for the help.
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- eremiasaurus heterodontus
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