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Showing results for tags 'campanian'.
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I have found this claw from a site in Eastern North Carolina which has maastrictian and campanian material. Does anyone know if this is dinosaur ? Some dinosaur material has been found here in the past. Or is this crocodile or turtle maybe? It has the blood grooves on each side, unfortunately the tip is broken off. It is slightly hollow with an oval cavity. I tried to capture as much detail as I could with pictures. Thanks for your help.
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I purchased these as Ingenia yanshini which I think became Ajancingenia, which then became and is currently Heyuannia. The formation provided is the Djadochta Formation, but that doesn't seem right since Ingenia/Heyuannia is not found there as far as I've checked. Unfortunately, there isn't provenance other than Mongolia attached to them to say whether they come from the Barun Goyot Formation where Heyuannia yanshini is found. While I'm not necessarily doubting the original ID, I just don't really know. I'm not expecting a positive or diagnostic ID to the genus level, but I wanted to at least know whether or not I can label this to Oviraptoridae indet., possibly Heyuanniinae indet. The original ID is a bit of an odd one, but it might have just been one of the few oviraptorids described at the time. Last I checked, there are now tons of recently described oviraptorid genera in Mongolia and China. The pair of phalanges with supposedly the semilunate carpal attached which I think is the smaller section? I know one of them did have glue in-between them when I lightly smeared it with acetone using a cotton swab. They are associated coming from the same sandstone block, apparently along with other shattered phalanges. Although I don't know if these actually came from the same animal since one looks ever so slightly larger. There is some sort of clump of sand or crystalized piece attached, as well as light beige or cream colored matrix. Not sure if that narrows down a formation, probably not, but I do see a lot of matrix from Mongolia tend to be red-ish color similar to the Kem Kem Beds. Any input is appreciated. There's probably a lesson to be learned here . . .
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Rudist hunting (5) in St. Bartholomä, Styria, Austria (Gosau-group, Campanian)
FranzBernhard posted a topic in Fossil Hunting Trips
Hello, Another hunting trip for rudists to the Campanian of St. Bartholomä in western Styria, Austria (09/15/2019). I have hunted these heaps of stones, collected from the former nearby fields (now meadows) over centuries, several times before, but there seems to be always something to find. I found six "good" specimens in 2 hours - and that´s exactly my usual yield in this formation . First topo map, geological map, relief map and aerial photograph of "Point 32". No problem to make everything public, nobody is interested in this stuff (well, except me...). Views from my parking place and from the way to the heaps: Some impressions of the heaps. First row is the western, lowermost end of the east-west trending with a small dig. A small, but quite nice radiolitid from this hole is to the left of the pocket knife. A second radiolitid was also found there. Second row shows some parts of the upper, north-south trending heaps. Third row shows to the left a fragment of a Hippurites nabresinensis (nearly in-situ, a small part was exposed). To the right, a freshly exposed, but still nearly in-situ Vaccinites is visible to the right of the red object; a small part of this rudist was also already exposed. Its the area shown in the pic above. Well, no pocket knife, already lost...
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Can anyone identify this leaf? Found in the Pictured Cliff Sandstone Upper Cretaceous Campanian
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Hello, my wife and I went to Charente to meet uncles and aunts that we had not seen for several years. A few kilometers from their home, walls and old houses in a hamlet are built with recycled materials: rudist fossils !!! here are some photos (on the first, it was not the cars that threw the fossils ) We walked through the surrounding countryside but the vegetation covers the ground, and only a corn field and a walnut plantation left some bare land where we found mostly broken pieces, but in the end a nice coral and 2 decent rudists for our pleasure. Enjoy. (I think @FranzBernhard in particular will appreciate ...)
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Hello, several weeks ago, I presented a rudist recovery "operation" from the Afling-formation of the Gosau-group of Kainach (Upper Cretaceous): Well, the same day I have discovered the rudist zone featured above, I have also discovered a rudist zone about 100-200 m stratigraphically deeper. It is confined to an about 1 m thick, very dark limestone bed rich in various rudist and echinoid remains. The limestone belongs to the Geistthal-formation, considering the limestone is still located within the sequence with some red clastic rocks, suggesting strong terrestrial influence in some layers. The limestone can be traced for at least 500 m along strike; at the footwall, it develops gradually from a conglomerate, in the hangingwall it is sharply overlain by fine-grained sandstone to siltstone. Here is a schematic map of the area, including also the Trochactaeon-bearing zone. In this post, I am dealing here with the "Liegende Rudisten-Zone". 59 = Geistthal-formation; 54 = Afling-formation, squares are 2x2 km. The fossils stick firmly to the limestone. But there are some impure zones (sandy-silty) within the limestone, where, with the help of some weathering, some fossils largely free of matrix can be found. Two zones of this kind are known at the moment, a natural outcrop in the forest and an outcrop at a forest road, which will be presented here. Approaching the outcrop (well, that pic was taken after the dig...): The outcrop was completely overgrown at the beginning, and this was the third day of working at this outcrop. You can see the worked area and the area prepared for today. The red x are markers placed above wooden marker sticks and about 1 m apart from each other. The soft zone between the hard limestone beds is visible. Sorry for the rather poor pics, my scrappy camera had a hard time dealing with that kind of lighting (clear sky and full shadow). Detail of the area to be worked today, still with vegetation: Vegetation cleared, first rudist found, a fragmentary Vaccinites, below the left red x. The pen is 13.7 cm long. Work in progress, "two" Vaccinites discovered. Only after some time I recognized, that this is a bouquet: Work practically finished, another Vaccinites discovered (4963). Turned out to be one of the nicest so far: Beside these Vaccinites, a few Plagioptychus aguilloni were also found in that area. But what to do with the rudist bouquet? Leaving in the outcrop or recover? I decided to recover, because it was already a little bit loose and already broken in several parts. And a one of a kind find until now. Here is the recovery, P.a. denotes a Plagioptychus aguilloni, numbers indicate individual Vaccinites specimens: The recovery ended in 8 fragments. I numbered them to help reassembling them together. This bouquet appears to be in live position, but this can also be by pure chance. Maybe closer examination with give some hints. That´s the outcrops after the work of this day, with the position of the specimens featured above indicated and before their recovery: If you are interested in the other days at this outcrop, have a look at this: 05/22/2021 (link to my homepage, in German, pdf, ca. 2.9 MB) 05/30/2021 (link to my homepage, in German, pdf, ca. 5.8 MB) From this few meters of outcrop, I have recovered ca. 10-15 Vaccinites, 5-10 Plagioptychus aguilloni and several radiolitid rudist until now. A great surprise was one large Trochactaeon snail intermixed with all the rudists (see link to 05/30/2021 above). I don´t take all fossils with me, about half of them I am leaving at the outcrop, so only approximate numbers. In the pavement of the forest road below the outcrop, I have also dug out about 15 Vaccinites specimens. Then there is the outcrop within the forest, which yielded also at least a dozen Vaccinites, still with a lot of potential. And all the other outcrops of the rudists limestone that I have not checked out in detail yet for loose rudists. Also still a lot of potential there and still a lot to do.... Hope, you enjoyed ! Franz Bernhard
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This is my first attempt at getting a Dromeosaurus albertensis tooth from Judith River fm. I've largely been avoiding buying dromeosaurids like the plague that aren't Acheroraptor or Saurornitholestes. Provenance: Hill County, Montana The tooth is repaired, and I had to realigned it while restabilizing it with butvar. The tooth doesn't seem to perfectly fit together, or too much butvar ended up in-between. There does not appear to be any serrations on the mesial edge, and it doesn't appear to have any trace of serrations, at least not that I can see with a macroscope. I don't think it's Saurornitholestes sp. due to the serrations not having the distinct hooked shape. I'm not 100% sure whether or not it's Tyrannosauridae indet., but I don't think it is, but the robust dromeosaurids are supposedly very similar at first glances. Any help or clues is appreciated. If any pictures are insufficient, I can try and take better photographs.
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Hello! Having discovered some new rudist occurrences in the lower part of the upper Santonian - lower Campanian clastic-marine Afling-formation at Römaskogel hill near Kainach, western Styria, Austria, about 6 weeks ago. Here I would like to present a very specific visit to one of these sites at 05/15/2021. It was aimed to recover some more parts of already known rudists from the outcrop at site #30. Here we go! Approaching Römaskogel, the hill in the middle. Its 1006 m high, the snowy mountain in the background is the Gleinalpe mountain, nearly 2000 m high: Already near Römaskogel hill, again the hill in the middle. These meadows are much steeper than they appear in the pic: Location of the rudist outcrop along a forest road: Rudist outcrop, scale is 1x1 m. The rudist-bearing zone is about 80 cm thick and tips gently towards south to southeast. Individual conglomeratic rudist-bearing beds are separated by layers of siltstone. The whole extensions of the rudist-bearing zone seems to be at least about 300 m, with about 5 outcrops and indications known until now. This is the best outcrop discovered so far. Right part of the rudist outcrop. At the lower end of the scale, the next pic. The digging spot of this day is to the left of the pen: Rudists ("Vaccinites Rö1") in conglomerate in the outcrop, diameter is about 5 cm: The digging site as left at 05/06/2021 and found again a week later at 05/15/2021. I had already recovered two parts of #4901 and one part of #4910. The soft siltstone in the footwall of the rudist bed clearly facilitated the recovery of the remaining parts from the relatively hard conglomerate. The pen is 13.7 cm long: Intermediate stage of recovery. The rudists are orientated parallel to the bedding plane. They are flattened, the two big ones lying with the flat side on the bedding plane. The smaller one is orientated "on edge" to the bedding plane: Here is a primitive, highly schematic and out-of-scale sketch of the situation. #4901 and #4910 are also oriented antiparallel: Dig site after removing all the rudists. #4901 yielded two more fragment (total of 4), with the very last tip still remaining in the outcrop. #4910 yielded also two more fragments (total of 3, completely recovered). #4914 recovered in two fragments: Right part of the rudist outcrop after recovery of these three rudists. Notice the difference to the start of the recovery : Here is the complete specimen #4910. It consists of 4 fragments, that were already naturally broken. Uppermost part was found 05/01/2021, next part was found 05/08/2021, lower most parts are from 05/15/2021. The rudist is strongly flattened (about 1:2), as most of the specimens from this bed, and about 21 cm long. I don´t know the species yet, working name is "Vaccinites Rö2". (Remember, nothing was known in that area until about 6 weeks ago.) The shell has a flame-like structure, which can be nicely seen in the naturally weathered transverse section. These structure corresponds to the fine longitudinal striation of the shell. Otherwise, the rudist is smooth without any ribs. In the cross section, the P-pillars are barely visible to the right, the L-pillar is not visible: Not much time was put into this recovery, most of the day was spent prospecting an area nearby. "Discovered" a freshly widened forest road (actually as wide as a good highway!) which perfectly exposes the mostly alluvial and reddish Geistthal-formation and the following clastic-marine Afling-formation for some 100 m thickness. Not much was found, but its a very, very impressive section. Here is my prospecting area (Römaskogel is in the lower left corner) and route (in blue) of that day. Red R indicate the last (highest) reddish beds: Still a lot to walk and observe during my next trip, especially to the east of the already explored area.... You never know what you will find. For example, #45 and #46 are small Trochactaeon indications. But these will be followed up next spring, when the green has gone again. Or not at all . I only made one pic during prospecting, that of a thin (1-2 cm) seam of subbituminous coal withing silt-claystone, located between conglomerate beds (#47). Such occurrences are well-known in that area: So, that was quite a typical day in the field for me: Some collecting at known sites, but more prospecting for new sites! Thanks for looking and your interest! Franz Bernhard
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A new super cool ootaxon of eggs and very different that what we are familiar with is presented in this paper : Stillatuberoolithus storrsi from the Kaiparowits Fm of Utah. Eggs are tiny at around 18mm and " the exact identity of the egg producer is unknown, the eggshell microstructure and small size is consistent with a small-bodied avian or non-avian theropod" Paper: https://www.nature.com/articles/s41598-021-89472-1#disqus_thread @-Andy- @HamptonsDoc
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Tlatolophus galorum, gen. et sp. nov., a parasaurolophini dinosaur from the upper Campanian of the Cerro del Pueblo Formation, Coahuila, northern Mexico. https://www.sciencedirect.com/science/article/abs/pii/S0195667121001312 Abstract
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From the album: Cranky’s album of fossils
A vertebra from the massive bony fish xiphactinus from the Niobara chalk formation -
I recently purchased this vertebrae which was sold as a mosasaur (Clidastes) vertebrae. I wasn't convinced that the vert was Mosasaur (or even marine reptile for that matter) in origin when I bought it, I simply bought it because I thought it was a nice looking vertebrae. But now I thought I might give it a shot to try and get an ID on this thing. It was found in the Gober Chalk, Austin Group, Gober, Fannin County, Texas, USA and dates back to the Campanian, Cretaceous (± 80 mya). I don't really know what the vertebrae could be honestly, I don't believe it to be Mosasaur in origin or any other marine reptile like Plesiosaurs or Pliosaurs. I have been searching to see if it might belong to a cretaceous giant sea turtle like Archelon or something but I can't find really find any pictures of sea turtle verts to compare with. When I posted the vertebrae in my collection topic some members were inclined to point toward the vertebrae being mammalian in origin, but due to the size that would mean it probably isn't cretaceous in origin due to it's large size. So I made some more photos to get a better image of the vertebrae, I made some close ups a well of the bone structure and of the some of the places where you can clearly see remains of a chalk like matrix stucking to the bone. So I was hoping if someone might be able to put an ID on this thing and maybe if it is mammalian in origin where it might originate from should it not be cretaceous. Thank you in advance!
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Saturday, 02/06/2021 St. Bartholomä-Formation (Campanian), Styria, Austria - mainly rudists of the hippuritid and radiolitid family. This was my first fossil trip since more then 3 months due to too much Covid first and too much snow lately. But now snow has melted, at least in St. Bartholomä. Note: Austria is still in so-called "hard lockdown", but you can drive around like crazy in our country, as long as you stay in your car overnight . I did not, I am doing only day trips, and St. Bartholomä is only a 30 km drive. - First I visited two low-productive sites, checked out small creeks again and a quarry, that is only barely accessible also in winter because of too much prickly blackberrys. At least I saw some good outcrops there, but not the right layer ("Knödelbrekzie") nor any rudists. - Switched over to the quarry at Point 25, my most productive site in this formation. Something has been coming down to the quarry floor during the winter, but no rudist etc. Examined my dig site higher up at the northern end of the quarry ("Point 25-North"), also some loose fresh material, but nothing. Started picking rocks from the undisturbed debris below the "Knödelbrekzie" outcrop and found indeed some ok rudists and a small coral colony. Still some potential here. I already know that there are fossils coming down also at the southern end of the fossiliferous "Knödelbrezie" in this quarry, but it is hard to reach from the quarry floor. However, it looked possible to reach it from above. And that was really the case. Some kind of bench has naturally formed at the edge of the quarry, exactly at the level of the fossiliferous "Knödelbrekzie". It had already disintegrated somewhat (which is good, even necessary!), forming a debris of cobbles intermixed with soil and earth. During unsystematic scuffing in the debris, I found indeed two quite good radiolitid rudists and a large limestone piece with two enclosed rudists, which I left behind. This is the site, called "Point 25-South", after scuffing, looking from the south end towards north. Funny thing, it came already with a handrail for safety . Its going down for about 5 meters to the right, steep, but not vertically. The fossiliferous layer ("Knödelbrekzie") and the debris is accessible for about 3-4 m horizontally at the moment. Maybe I will exploit this site systematically during this year, forming a horizontal, about 0.5 m wide and safe bench along the way to the north. Maybe not. I don´t know yet. I have quite a lot of rudists from St. Bartholomä and would like to do also other things . - Already quite late, I took a quick look at the overgrown heap of fieldstones at point 32. The electric fence running along the heap was turned off so I took the chance to remove some rocks under a root ball at the other side of the fence. From my perspective removing the rocks, I did not see "it", only as I moved a little bit, I saw it there, sitting deep under the root ball like an egg in its nest: Lower left is my first sighting, to the right after removing some earth and more rocks, just before picking. Its a good sized radiolitid rudist, about 7x7x7 cm, with coarse ribs. It was a very nice day out, good exercise (mainly stretching ), found a few fossils at a known spot, found a new, possibly productive spot and also a nice "Easter Egg". Links to some former trips to this formation: St. Bartholomä - 1 St Bartholomä - 2 (Point 32) Franz Bernhard
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Right now you'll be seeing a lot more posts from me as I'm making a concerted effort to get some of my fossils ID'd which I've been slacking on for a couple months (between, college, work et.). Anyway, here's a cool little tooth I found searching through some Texan Aguja formation (Late Cretaceous, Campanian) matrix I got from PaleoTex. It was found with its roots still attached but unfortunately they've since broken off, however I've kept them in the same container so I don't lose track of them when I eventually try to reattach them. I'm confident it's a mammal tooth, and I think it's from a multituberculate. I'd be interested in reading some opinions on it and if it's possible to narrow down any ID, whether that be to order, family or genus level. It's about 2.5 mm in length and 2 mm in width.
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Late Cretaceous chalk in North America
The Amateur Paleontologist posted a topic in General Fossil Discussion
Hey everyone I know I've been lately rather inactive on TFF; I was held back by fieldwork and other reasons (though do expect some posts about the fieldwork next weekend ). But anyway, onto what I came to talk about... Would anyone know of some good exposures of Late Cretaceous chalk in Canada or USA? I'm thinking specifically about Campanian chalk or, even better, Maastrichtian chalk.. It would be great if the exposed chalk is very fossiliferous, of course. Thanks for any help! -Christian -
Upper Campanian foraminifera from Northern Germany. We found in the quarry of Laegerdorf near Hamburg. We think it is a Lituola. What's your opinion ? It is agglutinated and the specimens have such areal, multiple openings. See more of our finds at https://foraminifera.eu/loc.php?locality=Laegerdorf+Neue+Heidestrasse
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Cairanoolithus dughii (Vianey-Liaud et al. 1994)
Ludwigia posted a gallery image in Member Collections
From the album: Vertebrates (other than fish)
Dinosaur egg shell pieces. Parentage: Perhaps Struthiosaurus Campanian Found at Beaureceuil, Provence-Alpes-Côte d'Azur, France Thanks to Pixpaleosky -
Hello, This is probably a long shot, especially because the ends are broken off, but I was wondering if someone could have a go at IDing this very small theropod claw from the Dinosaur Park Formation. I figured that the relative thickness above and below the blood groove might be diagnostic, but I know how hard these can be to ID at the best of times. After consulting this thread, my best guess so far is that it comes from a troodontid, but I'm skeptical about this simply because of how rare they are. Thanks!
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This topic is a short continuation of my previous topic on my Squalicorax collection, which can be seen here: This time I have chosen to show my Pseudocorax teeth. As with the Squalicorax teeth, I am open for trades and buying new additions. The oldest examples of Pseudocorax in my collection come from the Lower Campanian. Like the Squalicorax genus, they start off as a genus with very small teeth. Pseudocorax granti (x16) Ozan Formation Lower Campanian Moss Creek, Fannin County, Texas, United States of America See you guy tomorrow, Sander
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Hi I decided to make a post about my main research project right now on Campanian Tyrannosaurs specifically Daspletosaurus. Today I have found something to tell teeth from the Judith River Formation and Dinosaur Park Formation. This could also do with the Tyrannosaurs prey or locality. I found out that Judith River Formation Tyrannosaur teeth serrations are more circular and more round compared to the same time Dinosaur Park Formation Tyrannosaur teeth serrations. The Dinosaur Park Formation Tyrannosaur teeth serrations are more longer skinner and more chiseled like but not like other Tyrannosaur teeth from other areas like T. rex’s teeth serrations. Certain Tyrannosaurs in different areas and times would/could of had unique serration morphology probably dew to there prey. I did this on multiple teeth from the Judith River Formation and Dinosaur Park Formation to strengthen my hypothesis. Any opinions on this topic would be great. I will post more on my research here on this and other topics on the Tyrannosaur/Daspletosaurus. I have been doing research on this Daspletosaurus from the Dinosaur Park Formation and it’s close relatives because it was the first dinosaur fossil I’ve ever found. I’ve liked fossils and dinosaurs since I was 2 but in 2018 I went to Alberta and found my first dinosaur fossil which was a fossil from the Dinosaur Park Formation Daspletosaurus sp. Thats why I have been researching on this topic. The serrations I found on Dinosaur Park Formation Tyrannosaur teeth. The serrations I found on Judith River Formation Tyrannosaur teeth.
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Hello all, I recently found this strange fossil within a sandstone concretion from the late Campanian marine Bearpaw formation. I'm very familiar with the typical ammonites and other molluscs of the formation, and haven't seen anything like this - is it some sort of nautiloid, or something else entirely? Thanks.
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According to a new study, what was once thought to be one species Deinosuchus hatcheri may have been as many as 3 species. This new study is linked in the attached article which is a good read Deinosuchus hatcheri Deinosuchus riograndensis Deinosuchus schwimmeri https://www.hakaimagazine.com/news/when-deinosuchus-ruled-the-earth/
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Trochactaeon snails - Kainach, Styria, Austria - 10/10/2020
FranzBernhard posted a topic in Fossil Hunting Trips
Could not resist collecting some more Trochactaeon snails at Breitenbach-11 in Kainach, Styria, Austria last Saturday (10/10/2020). Especially the upper T-bed contains rather well preserved (for the formation, of course ) snails. But always the right amount of weathering is needed (not too much, leads to disintegration of snails; not to less, they will adhere firmly to the rock). Still some potential there. Worked only with a screwdriver, needed only a few very gentle hammer taps. No prepping, just a short brush with a soft tooth brush. For more info about the area, have a look at my previous post: Trochactaeon - Gosau of Kainach, Styria, Austria - Summary Franz Bernhard
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I was recently reorganizing my fossil collection and thought I would share some pieces I collected during Paleontology field trips in undergrad at Alabama. I'm glad I took thorough notes at the time! The demopolis chalk is a popular formation for finding Exogyra/ostrea/pycnodonte shells and shark teeth. We visited a site in Tupelo, MS many times for surface collecting. Some of the cool pieces I found were many fragments of a mosasaur jaw (top pic, top 2 slots), a Squalicorax kaupi tooth, a scyliorhinus(?) tooth, bony fish vertebrae, and bony fish teeth. I was told the dark fossils at the right of the third picture might be ray plates, but I'm not sure. Turritella in pic 1 are from a different formation.
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