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Showing results for tags 'Bull Canyon Formation'.
Found 25 results
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From the album: Triassic
From the "dawn" of the Dinosaurs, this small tooth represents an early theropod. Unlike the other serrated archosauriform teeth present in the formation, this tooth is ziphodont - thin and labio-lingually compressed - the archetypical tooth form that most theropods adhered to since their beginnings.-
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Welcome to another microscopic look into the wonderful world of coprolites. Here we have a squished (flattened) spiral coprolite from the prehistoric floodplains that now form the Bull Canyon Formation in the badlands of Quay County, New Mexico. Today's mystery was most likely not ingested. Many times the posterior (non-pinched end) of spiral coprolites can be hollow. I may be wrong, but I think this branchy thing (for lack of a better term) slipped in after it was expelled. To me this looks like part of a branch from a delicate coral - but the poop was in fresh water. Any ideas?
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From the album: Triassic
Revueltosaurus was a Pseudosuchian, on the branch of the Archosaurs more closely related to the Crocodilians than the Dinosaurs. Despite the serrated teeth, it is thought to have been herbivorous.-
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From the album: Triassic
Lungfish are an ancient group of fish, with swim bladders that evolution co-opted as a kind of "lung," allowing them to breathe air. This may have proven invaluable in a seasonally dry climate in Pangea.-
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From the album: Triassic
From the "dawn" of the Dinosaurs, this small tooth represents an early theropod. Unlike the other serrated archosauriform teeth present in the formation, this tooth is ziphodont - thin and labio-lingually compresed - the archetypical tooth form that most theropods adhered to since their beginnings.-
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Hi there. I have this Triassic tooth from the Bull Canyon formation sold to me a good few years back as belonging to Coelophysis. I'd tentatively labeled it cf.Coelophysis (due to the locality) but now that I'm going through and re-evaluating everything I'm not sure it is an accurate description considering the curvature (though I'm not knowledgeable on ontogenic variation in this genus). I'm aware of a great thread posted by Troodon about this particular area but I'd like some input on the possibility it could belong to other Archosaurian taxa. My knowledge of this area is minimal so I'd appreciate any help. I counted about 26 denticles/5mm on both carinae.
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Hi y'all, found this partial tooth in micromatrix from the Triassic-aged Bull Canyon formation. Serration density looks to be 9-10 / mm on the dc. Could it be dinosaurian?
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This carnivore coprolite was found in the Bull Canyon Formation (Upper Triassic - Norian), Quay County, New Mexico. It contains numerous fine, boney inclusions (white). There also appears to be a small jaw inclusion that has a shape similar to amphibians. Originally, I couldn't figure out why there would be so many finely crushed bones. It is not something I usually see. When bone fragments are present, they are usually larger. That said, fibrous osteoderms are also found in the same area. I have included an image of a fairly large one. They are made up of fine, boney fibers that have a configuration similar to woven fiberglass. So here is what I am wondering: 1. Could the fine bone fragments be the indigested remains of these boney osteoderms? Perhaps from juveniles? I do have some small fragments (somewhere), so I could dissolve them to see how they fall apart. 2. Does anyone know what type of animal had these fibrous plates? All I could find is information on osteoderms from phytosaurs and aetosaurs. Neither of those appear to be fibrous. I have found osteoderm fragments of that type in coprolites, but they look nothing like this. I know some of the Triassic amphibian-like tetrapods had osteoderms, but I haven't been able to find information on these. Since the shape of the jaw in the coprolite has a similar shape to those animals, I'm thinking they may have had this type of osteoderm. Of course more than one type of prey may have been on the menu. Osteoderm Magnified Osteoderm I've been away from the forum for a while, so I'm hoping there are new folks out there that specialize in Triassic critters. As always, thanks for looking! @Carl @MarcoSr
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Collected on private property owned by Larry Martin.
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I recently purchased a small lot of Bull Canyon Formation, New Mexico teeth, most of which were Phytosaurid. Then i noticed this tooth and how eerily similar it is too Pterosaur teeth from Morocco. From what i've read, there have been documented Eudimorphodon fossils collected from the Chinle Group, however i cannot find pictures for comparison. The closest teeth i can find from New Mexico are Preondactylus and Peteinosaurus teeth that have been put up for sale on multiple websites, though the information provided with them is unhelpful. I've included a photo of the "front", "back" and a side profile of the tooth. If clearer photos are needed to assist with identification, i can get some taken and uploaded.
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Hello I have three blue fossils from bull canyon formation would anyone be able to Id them ?
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Dear experts, this is my second aquisition: According to the seller it is a "Staurikosaurus" from the Bull Canyon Fm. in New Mexico (no information on the county provided). The length is 1 cm and the width is about 3 mm. I tried to count the denticles but unfortunately my camera is not made for close-ups. The count might be around 7-8 per mm. In contrast to my last post where there was a wrong formation provided by the seller I was able to verify, that the Bull Canyon Fm. does in fact exist in New Mexico. But that's almost it. According to wikipedia Staurikosaurus is only known from Brazil which makes it unlikely for the tooth to be a Staurikosaurus pricei. On the other hand there is a website on triassic vertebrates of New Mexico which also lists Staurikosaurus pricei in this formation... Here are the compressed pictures of my tooth:
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Coelophysis teeth???
dinosaur man posted a topic in Is It Real? How to Recognize Fossil Fabrications
Are these really ceolophysis teeth from the bull canyon formation I was thinking of buying them I found them on online real cheap.
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ID requested: Triassic Bull Canyon Formation microfossil teeth (Norian Age)
ziggycardon posted a topic in Fossil ID
Hi! I recently aqcuired quite a lot of "microfossils" to kick off my Triassic collection, as I personally find it one of the most interesting time periods and while I am aware possibly not all of them are ID'd correctly I just wanted to get some nice fossils from this time period regardless of their ID's. All the fossils I acquired are from the Bull Canyon Formation, Dockum Group, San Miguel County, New Mexico, USA (Norian age) But I myself am not very knowledgeable yet in this material as I just started my collection but I am aware that some if not most of the ID's on these fossils given by the seller might be wrong as everything I read about the Bull Canyon formation says that the formation isn't that well discribed yet. I tried to make the photo's as good as I could, but it wasn't always easy given their extremely small size, so I hope the quality is good enough to work with. So I am kinda hoping is someone here on the forum would like to give it a try to see if he/she could confirm or disprove given ID's. Thank you in advance! The first set of 2 teeth were listed as the Phytosaur "Pseudopalatus" teeth which after doing a bit of research is considered a junior synonym for "Machaeroprosopus" The next collection of 3 teeth were listed as the Pseudosuchian "Revueltosaurus" The next tooth was listed as a "Theropod indet" tooth, and I know there are at least 2 species of theropod present at Bull Canyon, a Coelophysid called Gojirasaurus and a herrerasaurid called Chindesaurus. But I am not even sure whether this tooth is dinosaurian or not. The next set of teeth were listed as "Arganodus" lungfish teeth And the final tooth was listed as a "Sphenodont" (Rhynchocephalia indet.) tooth with affinities to Clevosaurus (which is found in Nova Scotia, Great Britain and China).jpg.c21fd51aec9f6112713a83e42aadaa97.jpg)
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Hello all, I was browsing on our favorite auction site and I found a dealer who is selling a pair of Ceolophysis teeth for a rather cheap price, which sent off a warning flag in my mind. The dealer claims that these are from the Bull Canyon formation of New Mexico. Are these teeth real or are my suspicions correct?
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I was going through a large group of very small Triassic coprolites today and came upon this. Since there was a beat up Koskinonodon tooth in with the coprolites, I'm wondering if this could be a jaw or maxillary fragment from a juvenile. The person who found the coprolites said that he found a lot of Koskinonodon teeth in the area as well some from Phytosaur, Apachesaurus, Coelophysis, Postosuchus, and Revueltosaurus. What do you all think? Jaw or maxillary? Amphibian, fish or something else? If this is amphibian, can anyone identify the bone above and to the left of the teeth? My cat votes amphibian @Carl check it out!
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This osteoderm was in a box of Bull Canyon Formation (Triassic - Norian) coprolites that I have been going through for the past year. The fun thing is, I one of the coprolites in this batch appears to have osteoderm inclusions that look very similar. I have looked at well over a thousand coprolites from this formation, and this is the first time I have found inclusions such as these. Needless to say, I am super, super excited!!!! Best I can figure it is from an aetosaur or phytosaur, neither of which are familiar to me. I did send an email to the person that found them to see if she is able to identify it, but thought I would throw it out to the forum at the same time. Any assistance you provide would be greatly appreciated. @Carl check it out!
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Hi, i was looking online and i came across a website that has a small tooth labelled as Peteinosaurus (from the Triassic). My question: is this legit? Because i tried doing some research on this pterosaur and apparently Peteinosaurus material has only been found in Italy (near Cene) while this is labelled as coming from the Bull Canyon Formation in New Mexico and i can't find any pics online of Peteinosaurus teeth to compare it to. I would love to add a triassic pterosaur fossil to my collection but i can't be sure if this is the real deal.
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Bull Canyon Formation, San Miguel County, New Mexico
sander posted a topic in General Fossil Discussion
Dear Forum members, I own a few microteeth which are said to be from the Bull Canyon Formation of San Miguel County, New Mexico. I have tried to find a scientific paper on the Bull Canyon Formation locations of San Miguel county, but I can only find Garita Creek Formation locations. Does anyone know where in San Miguel County all those micro teeth come from? Is it really Bull Canyon Formation or another formation? Thank you for your answer, Sander -
I have two Triassic coprolites from the Bull Canyon Formation, Quay County, NM. The first one has an impression/imprint that I have not been able to identify. The second has a protrusion sticking out of it. I had hoped that by prepping out the the protrusion, I would get lucky and it would match up with the marks on the other. Unfortunately, I now have two things that I can't identify. @Carl 1. Is there anyone out there that wants to take a stab at identifying the imprint in this one? It does appear that there are some remnants (white) of whatever it was that made the marks.
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The location where this was found contains both aquatic and terrestrial animals from floodplain habitat. In this coprolite, a small tooth plate impression with residual fragments can be seen on the surface. Since a similar tooth plate was not found within the coprolite itself, it is unclear whether this is an undigested prey remnant or if it was embedded upon deposition. An unidentified bone and numerous fish scale inclusions were revealed using X-ray computed tomography. This specimen was scanned in April 2016 by the University of Minnesota X-ray Computed Tomography Lab using a X5000 high resolution microCT system with a twin head 225 kV x-ray source and a Dexela area detector (3073 x 3889 pixels).
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Toothplate Impression From The Lower Jaw Of A Triassic Lungfish?
GeschWhat posted a topic in Fossil ID
Hi all, I found this impression in a Triassic coprolite from the Bull Canyon Formation, Quay Co., NM. It is hard to see in the photo, but there appears to be bits of enamel/bone still stuck in some of the cavities left by whatever made the impression (shows up white). Best I have been able to determine, it was left by the tooth plate from the lower jaw of a lungfish. Can anyone confirm this for me? Isn't poop just the best? Thanks for looking!
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Hi all, I just received a new batch of coprolites from the Bull Canyon Formation (Upper Triassic), Quay County, New Mexico. These two had some unusual inclusions that I have not seen before. I'm thinking fish skull or gill parts? (Please ignore the spelling in the title... ) Coprolite 1: This coprolite also contains other fish scale/bone inclusions.
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Hi all, A while back, I acquired about 160+ coprolites from the Bull Canyon Formation in Quay Co., NM. As some of you may know, I have been doing a little experimenting by dissolving them in vinegar in order to study the inclusions. Prior to dissolving them I always scan candidates with the microscope. While scanning, I came across this interesting specimen. It reminded me of the segmented worm coprolites that I found crab exoskeleton that you all helped me identify (LINK) a while back. This specimen is quite a bit different in that it has the general shape of a crab exoskeleton, but none of the features you would expect to find on the underside of a crab nor an opening for a head. The people that collected this said that they have never found crabs in the area, but have come across bivalves. However, this doesn't really look like a bivalve to my untrained eye. What I believe to be tiny coprolites on (and possibly contained within) the specimen are the pellet shaped items on the microscopic image. I would like to get the opinion of all you experts on crabs, bivalves, and coprolites out there. What do you think the host fossil is?
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Anyone For Round Of "what Was For Supper - The Triassic Edition?"
GeschWhat posted a topic in Fossil ID
Hi all, I decided to dissolve a small piece (12 mm dia. x 15 mm long) of Triassic coprolite from the Bull Canyon Fm., Quay County, New Mexico, in vinegar. After sitting for a week, numerous scales ranging in size from 0.5 to 2 mm long along with 4 partially digested bone fragments were revealed. If anyone out there is familiar with Triassic fauna, do you see anything recognizable? All photos are taken at 40X magnification. Triassic Treat #1 is about 3 mm across and still resides in what is left of the coprolite. Triassic Treat #2 is about 3 mm long and curves along the outside of remaining bit of coprolite (which now has a diameter of 12 mm) Triassic Treat #3 is about 3 mm across and 1 mm wide. Triassic Treat #4 is about 2.5 mm across and 1.5 mm wide.
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