Search the Community
Showing results for tags 'chile'.
-
I found this fossil in lo valdes, Chile.
-
Relict duck-billed dinosaurs survived into the last age of the dinosaurs in subantarctic Chile.
Oxytropidoceras posted a topic in Fossil News
Never-before-seen 'missing link' dinosaur walks, drinks and socializes in stunning new animation By Harry Baker Live Science , June 27, 2023 Descubren nueva especie ancestral de dinosaurio pico de pato que vivió hace 72 millones de años en la Patagonia Universidad de Chile, Press Release. Chile y la U. de Chile presentan al mundo una nueva especie de dinosaurio. Universidad de Chile, Youtube The open access paper is: Alarcón-Muñoz, J., Vargas, A.O., Püschel, H.P., Soto-Acuña, S., Manríquez, L., Leppe, M., Kaluza, J., Milla, V., Gutstein, C.S., Palma-Liberona, J. and Stinnesbeck, W., 2023. Relict duck-billed dinosaurs survived into the last age of the dinosaurs in subantarctic Chile. Science Advances, 9(24), p.eadg2456. Yours, Paul H.-
- 1
-
-
- dorotea formation
- magallanes
- (and 10 more)
-
From the album: Sharks
One of the most coveted teeth due to the great white's popularity. Being one of my favorite animals, I knew I had to get a nice one eventually. This one in particular is special. Besides being in superb condition, this tooth has a bite mark on the root: three parallel grooves on the labial side of the root gouged by serrations. Bite marks on teeth are uncommon, and a neat feature on this already sweet tooth. This tooth is from the desert of northern Chile. Fossils from Chile are now illegal to export, so as an ethical collector you need to make sure that any Chilean fossils you are interested in were exported prior to the ban. -
From the album: Sharks
White sharks used to have smooth-edged teeth. They eventually evolved serrations as their diets transitioned to marine mammals from fish. This shark was a transitional form between the smooth-edged predecessors and the modern fully-serrated great white. The serrations on this tooth are not worn-down. C. hubbelli serrations are naturally finer, typically decrease in size towards the tip, and are oriented towards the tip. This tooth is from the desert of northern Chile. Fossils from Chile are now illegal to export, so as an ethical collector you need to make sure that any Chilean fossils you are interested in were exported prior to the ban. -
Identification Teeth of C. hubbelli are morphological intermediates between C. hastalis and the extant species C. carcharias. They all possess erect triangular cusps, no nutrient groove, and a thin to no lingual dental band ("bourlette"). C. hubbelli exhibits transitional serrations which are finer/weaker than those of the extant species, and diminish in size apically.1 This feature may be confounded with the same pattern in nascent C. carcharias.2 C. hubbelli may be confused with C. subserratus (escheri), however they can be easily distinguished by their geographic distributions. C. hubbelli is exclusively found in the Pacific, while C. subserratus (escheri) is only found in the Northern Atlantic and Mediterranean.1 References 1. Ehret, D.J., Macfadden, B.J., Jones, D.S., DeVries, T.J., Foster, D.A. and Salas-Gismondi, R. (2012), Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru. Palaeontology, 55: 1139-1153. https://doi.org/10.1111/j.1475-4983.2012.01201.x 2. Hubbell G. (1996), Using tooth structure to determine the evolutionary history of the white shark. In: Klimley AP, Ainley DG, editors. Great White Sharks: The Biology of Carcharodon carcharias. San Diego: Academic Press. pp 9–18.
-
- 2
-
-
- carcharodon
- carcharodon hubbelli
- (and 4 more)
-
Identification Teeth of Carcharodon carcharias may be identified by erect, triangular crowns with no nutrient groove in the root, no lingual dental band ("bourlette"), and irregular triangular serrations on the edges. Comments This tooth has a self-inflicted bite mark in the form of three parallel linear gouges in the labial face of the root made by serrations of another tooth.
-
Hello again my good friends. I did a petrographic thin section in a marine consolidated sediment, and i found some elements that seems to be microfossils. It is worth noting that these sediments are in a mandatory-way marine since in all of them are marine bivalves fragments. I also was unsure if put this here or either in the microfossil zone of the forum, leaving it here because it is an ID question. For each I'll leave a views in PPL and XPL. Hopefully someone may be able to recognize them at least broadly, and tell apart them from being forams, big diatoms or even algae. Greetings from Chile !!!!! PD: Sediment age may range from middle Eocene into the Miocene Fossil 1: Fossil 2: Fossil 3:
-
I found this rock while hiking in a mountainous range around Central chile, 2 hours out from santiago. The area around where I came across was very elevated and dry, with features similar to the atacama(which was once underwater). It has ridges on the side of it, as well as having the size and shape of the outer part of an amonite shell. I used a rock identification app which told me it was made of limestone. Now I'm wondering if I found a fossil or just a weirdly shaped rock.
-
From the album: Sharks
These white sharks come from the deserts of Chile (left) and Peru (right). -
Hi Everyone! I'm willing to trade these 2 big boys from my personal collection. I'm looking for Megalodon teeth from more exotic Locations. Chile, Peru, Carribean for example. But also LC aurora and Mehherrin. Always open to other offers too. Tooth 1: Grey 6'05 from SC Small resto done to the lower sides of the restorations. Done professionally. But furthermore natural and practically perfect. Tooth 2: 6'40 coast Meg tooth from NC No restorations done. Almost half a kilo. Absolute monster.
-
Melting Glacier Reveals 23 Fossil Ichthyosaurs in Chilean Patagonia
Oxytropidoceras posted a topic in Fossil News
Melting Glacier Reveals Nearly Two Dozen Huge Ancient Sea Creature Fossils Motherboard, Audrey Carleton, May 11, 2021 Chile’s first complete ichthyosaur recovered from a glacier in Patagonia University of Manchester, May 10, 2022 Melting glacier uncovers 'exceptional' prehistoric discovery for researchers By Marianne Mizera, Yahoo News, May 16, 2022 Yours, Paul H.- 1 reply
-
- 7
-
-
-
- fiona
- ichthyosaur fossil
- (and 4 more)
-
Just got this 10,5 centimeter whale tooth (with Matrix) from Chile. What could the specimen ID be?
-
Upper Paleocene Lamniforms (Mitsukurinidae and Odontaspididae) ID from Chile
terminatordiego posted a topic in Fossil ID
Hello to all guys!!!, I would like to ask again for help in the ID of some teeth. I´ve been searching in a local university's museum for teeth of the original strata (Upper Paleocene), and I have found a very interesting set of boxes containing a bunch of different teeth, all labeled as "Scapanorhynchus sp.", maybe existing a missidentification. The question would be if any of you guys can ID the pieces and how to differentiate the Scapanorhynchus sp. from Striatolamia striata or Sylvestrilamia teretidens, the options I´m leaning for the ID of the teeth. I would also like to check if you guys @will stevenson , @MarcoSr or @bthemoose have any info about it. You guys are awesome!! The ruler is a 1mm step grid, and I'll try to order them from anterior to posterior (I am aware that each one can be of different taxa), all of them have a stronger or weaker folded surface in lingual side. Any help or info is welcome, thanks guys!!! and greetings from Chile. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) Finally, this one has the weakest folding:
-
Here is my shark teeth collection. photo 1 Species: Carcharocles megalodon Age: 2,6-15 million years (Miocene-Pliocene) Size: 9,5 centimeters Localisation: Georgia River (Georgia) Formation: Hawthorn photo 2 Species : Isurus hastalis Age: 9 million years (Miocene) Size: 4,8 centimeters Localisation: Copiapo, Chile Formation: Bahia Inglesa photo 3 Species: Squalicorax pristodontus Age: 70 million years (Upper Cretaceous) Size: 2,9 centimeters Localisation: Morocco Formation: Kem Kem Beds photo 4 Species: Carcharodon carcharias Age: 3 million years (Plocene) Size: 4,6 centimeters Localisation: Ica region, Peru Formation: Pisco
- 7 replies
-
- 6
-
-
-
- hastalis
- isurus hastalis
- (and 19 more)
-
Soto-Acuña, Sergio; Vargas, Alexander O.; Kaluza, Jonatan; Leppe, Marcelo A.; Botelho, Joao F.; Palma-Liberona, José; Simon-Gutstein, Carolina; Fernández, Roy A.; Ortiz, Héctor; Milla, Verónica; Aravena, Bárbara, 2021. Bizarre tail weaponry in a transitional ankylosaur from subantarctic Chile. Nature: 1–5. doi:10.1038/s41586-021-04147-1. ISSN 1476-4687. Links: This bizarre armored dinosaur had a uniquely bladed tail weapon (nationalgeographic.com) This Dinosaur Found in Chile Had a Battle Ax for a Tail - The New York Times (nytimes.com) Stegouros is quite unusual for ankylosaurs in that it had a tail whose armor is reminiscent of war clubs used by the Aztecs and Hawaiians, in sharp contrast to ankylosaurids having tail clubs similar to maces used by medieval knights. Moreover, the authors of the Stegouros paper recover this taxon along with Antarctopelta and Kunbarrasaurus in a distinct ankylosaur clade basal to Nodosauridae and Ankylosauridae, which they named Ankylosauria.
-
This is Wild, Just imagine what took place. The explosion and shock wave and then Molten glass landing on the forest floor. Quote from paper.... "Paleograss imprints and H2O diffusion fronts on the bottom of some in situ samples indicate emplacement on wet sediments before being completely quenched, consistent with local late Pleistocene environmental conditions at that time. Finally, all glasses occur in sediments of late Pleistocene age" Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, Chilehttps://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G49426.1/609354/Widespread-glasses-generated-by-cometary-fireballs click on pdf
- 8 replies
-
- 2
-
-
- pleistocene
- comet
- (and 1 more)
-
Dolphin teeth Caldera, Chile
Jurassicz1 posted a topic in Is It Real? How to Recognize Fossil Fabrications
I found these for sale. Some Dolphin teeth from Caldera, Chile, Miocene. Are they real? And if so are they from the Bahia Inglesa Formation? Adriano
-
Help needed in fossil sharks ID - part 2 (Upper Paleocene of Chile)
terminatordiego posted a topic in Fossil ID
Hello to all of you guys, a couple of weeks before i asked for help in relation with some shark teeth, and the help indeed was very nice! A couple days before i was back in field trip and found some more teeth from the same strata, and would need your help for the correct ID (hopefully at species or genus level), you guys are awesome!!! Here´s the list of the fossils (each step of the ruler is 2mm): 1) A tiny tooth with very small roots and 3 denticles, the central and main one is triangular and very oblicuous 2) A tooth with very triangular cusplets and with small and shorts ridges in the base of the main denticle (wich is slightly curved), the roots are slightly asymmetrical 3) A half of tooth with triangular cusplets and with a slight triangular depression in the base of the main denticle (wich is slightly curved) 4) A (i think so) stingray tail fossill 5) A tooth that i dont know what could be (the tip is very smooth and the roots have a wood-like texture) 6) A tooth that i think is from Premontreia subulidens, but im not 100% sure 7) Something that i dont know what it is, looks like some kind of skin or membrane 8) A tooth similar in color and root texture that number 5, but with only 1 denticle 9) A tooth with very triangular cusplets and low developed roots 10) A tooth with maybe similar look about Carcharias teretidens? but with slightly longer lateral denticles 11) A tooth with aparently only one denticle, and asymmetrical roots (the rightest part of the right root is easly confused with the sandstone matrix) 12) A tooth with two denticles, striae in the lingual face, triangular depression in the base of the main denticle and the base of the crown is much more prominent that the diameter of the main denticle, might be reworked because is from a level stratigraphically higher. Finally, as a bonus track, here it is a vert. that i found in the same field trip:
-
Help needed for ID Miocene - Pliocene, or Upper Eocene, Mollusks from south central Chile
terminatordiego posted a topic in Fossil ID
Hello again to all of you guys , I´m in a huge need oh help to ID some mollusks of south central Chile. Currently these are storaged in the vault of a local university. I know taht the fossils in the images are not in the best conditions, but the outcrop itself sadly has been seriously reworked by a bulldozer machinery (they may be a little bit flattened). At least to a family or genus level ID should be nice considering how they actually are. The beds should be of the Miocene to Pliocene. But also theres a very minor chance of being from the middle to upper Eocene. The larger axis of each cabinet is around the size of a fist. Here the photos: Thanks again and greetings from Chile!!!
-
Hello to all of you guys, I´m a newbie to the forum, so i would like to before anything, say hi to everyone here And with that already said, i would need some help with the identification of some fossils of Elasmobranchii, that I have seen near the coast of south central Chile. The fossils are 2 teeth and something else that I´m unable to ID correctly (I think maybe a vertebra? or some weird gastropod). The age of the sandstone that contains these should be around the Upper Paleocene. The fisrt tooth I think is from some (I think) sand tiger shark (something near Carcharias), and correspond to an upper lateral or near upper posterior position. My best shots right now around this are some sp. of Carcharias, Brachycarcharias, and even Striatolamia but for me it would not be weird if its something else. Here the photos (each segment of the scale is a milimeter): And the second one is, for me, some lateral tooth of a Paraorthocodus, but not sure about the sp. of it. Should be somewhere near P. eocaenus or P. clarkii?. Here the images: Finally, the misterious one. Here the photo: thanks for reading, and help would be very nice (sorry if my english is not the best)
- 9 replies
-
- 4
-
-
- south america
- chile
- (and 7 more)
-
I just ordered this piece which I was watching for quite a while as I wanted to add some more bird material to my collection. It's a penguin beak found in the Bahia Inglesa Formation, Atacama Desert, Copiapo, Chile (Pliocene, around 4 mya). It was listed as "Pelecyornis sp." but since that is a genus terror bird I don't think that ID is correct. After doing some google research I am more leaning towards perhaps Spheniscus urbinai or Spheniscus megaramphus or another species. But I am far from an expert on bird material let alone fossil penguins so I was hoping on some imput from more experienced members on that field.
.jpeg.c2246ef5f5ce888608348535d3f10fde.jpeg)
-
From the BBC ! https://www.bbc.com/news/world-latin-america-56814655
- 1 reply
-
- 6
-
-
-
- titanosaur
- chile
- (and 2 more)
-
Carcharodon hastalis - Chile
BellamyBlake posted a topic in Is It Real? How to Recognize Fossil Fabrications
I have here an alleged Carcharodon hastalis from Chile. It is 1.85" long and 1.12" wide. After receiving the tooth, it looked a lot more like Isurus planus to me. The other party insists it's Carcharodon hastalis. At the very least, they insist it comes from Chile. To the best of my knowledge, Isurus planus isn't found in Chile. I've never heard of it anyway. Two questions, then. Is this Hastalis or Planus? And if it is Planus, might it be Chilean? Thank you, Bellamy
-
Hi guys, I don’t really know the Chilean fauna so any help would be appreciated. 1. Label is outdated so it should read Bahia inglesa fm, rather than huarra, however, I didn’t know the scientific name of a dogfish from here. 2. some sand tiger shark? Not sure of species or even genus 3. could be another sand tiger but could be a small hastalis? 4. Carcharhinus Priscus?
- 2 replies
-
- 2
-
-
- bahia inglesa fm.
- chile
- (and 1 more)
-
We may Finally know what life on Earth breathed before there was oxygen By Carly Cassella, ScienceAlert The open access paper is: Visscher, Pieter T., Kimberley L. Gallagher, Anthony Bouton, Maria E. Farias, Daniel Kurth, Maria Sancho-Tomás, Pascal Philippot et al. "Modern arsenotrophic microbial mats provide an analogue for life in the anoxic Archean." Communications Earth & Environment 1, no. 1 (2020): 1-10. Yours, Paul H.
-
- 1
-
-
- laguna la brava
- microbial mats
- (and 6 more)
.jpg.0198441a1d1e8e7cef2c0382e220959f.thumb.jpg.55549b8fb364714d6637221084217c4f.jpg)
.jpeg.c2246ef5f5ce888608348535d3f10fde.jpeg)
