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Found 8 results

  1. Primate fossils are very rare. I would really like to see what primate fossils TFF members have in their collections or have collected and donated. Mine have been personally collected, and have been donated, and are posted below. Let me start this post with the nicest primate fossil that I’ve seen, to show what is possible to find. A Messel researcher from Germany, to whom I’ve sent thousands of squamate specimens for study, sent me the below Messel book gratis last year. This is a book full of incredibly preserved specimens from plants, to insects, to mammals, to birds, to reptiles, to amphibians, to fish. Some very well-preserved primate fossils are in this Messel book, including an incredible Darwinius masillae articulated specimen shown in the below picture. After showing that incredible Messel primate, my primate specimens, which follow, seem pretty meager, but nevertheless are of scientific value. First, three primate teeth that I found in anthill matrix, from anthills situated on exposures of the Big Cottonwood Creek Member of the Chadron Formation (Latest Eocene-early Oligocene), from my sons’ M&M Ranch in Nebraska are shown in the below picture within a figure, as well as the cover of the publication that they are described in. Because the researchers were not able to assign the teeth to a genus (see the text in the red box in the below picture) I intend to recollect anthill matrix in the same 3 areas where the teeth were found in hope of finding a more complete primate specimen (at least a partial jaw with a premolar, molars) so the species can be identified. Secondly, a partial omomyid primate jaw, which I found in the Eocene, Nanjemoy Formation of Virginia, shown below in a figure from the paper that the partial jaw is described in (see first page of the paper below). Also note the two excerpts below from the paper. Due to the extreme rarity of this specimen, it is extremely unlikely that I could find another specimen that might be positively identified. From the paper Title and Abstract: "First Fossil Primate from the Atlantic Coastal Plain" From the paper DISCUSSION AND CONCLUSIONS: "Considering its geographic separation from other known North American, as well as European, omomyids, it almost certainly represents a previously unknown species. However, in the absence of premolars (often the most diagnostic teeth in omomyids) or any other anterior teeth, or obvious derived molar traits, it would be premature to create a new taxon for this fragmentary specimen." I am really hoping for and looking forward to TFF member primate posts to this thread. Marco Sr.
  2. Hi there! New member here. My meemaw just shared this item with me that was found near a creek bed behind her house (just north of San Antonio, Texas). Looks like it has some identifiable facial features, but it is awfully heavy. Thanks in advance for your help in soothing her curiosity! K
  3. Hi everyone, I'm a new member and I'd like to share with you a fossil that was purchased several years ago. This is my first attempt to start a topic or post anything (other than an introduction) so I apologize if I upload things oddly as I'm still trying to figure out how to navigate the forum. As mentioned in my introductory post, I'm a former academic that focused on macroevolution, phylogenetics, and speciation, and I'm always fascinated by major evolutionary transitions. I actually wrote a paper on the origin of primates during my undergrad to explore the suite of characteristics that helped primates emerge as a dominant clade. As a result, I spent a great deal of time learning about the muddied "key evolutionary traits" separating Plesiadapiformes from accepted early Primates, namely stereoscopic vision, grasping hands and feet, saltatory locomotion, and the rise of frugivory. So to my surprise, someone was selling a lower jaw fragment of a Plesiadapidae from the Willwood Formation, Wyoming (Late Paleocene-early Eocene). It was apparently vetted as such by someone at a local university and I had no reason to distrust the seller, as it is such an obscure set of creatures by most standards. I had previously purchased two other fossils (i.e. Eohippus/hyracotherium jaw fragment, and an allognathosuchus alligatorid lower jaw) from the same person and they seemed to have solid provenance. I would love if someone could verify that it is in fact a plesiadapid or even I.D. it to the species level if possible. I thought it would be an interesting first post and I'd love to add it to my collections page (if I can figure out how to do that). Thanks so much for any help and/or comments. Cheers Marcus
  4. I have already posted pictures of this partial jaw in a topic “The most rare fossil on your collection” in “Member Collections”. However, I would like to start a thread here in “Partners in Paleontology - Member Contributions to Science” so I can discuss any updates with this partial jaw. I found this partial jaw ( 3mm by 3mm by 1mm) in February 2019 in matrix from the Eocene, Nanjemoy Formation, Potapaco B Member in Virginia. Below are pictures that I took of the partial jaw: I sent these pictures and then the specimen itself to Dr. Ken Rose who is a Johns Hopkins University emeritus and who is associated with the Smithsonian Institution. From looking at the pictures Ken had originally thought that the specimen might be from a hedgehog. However, after receiving and seeing the specimen itself, I got the following statement in an e-mail from Ken “I’ve had a chance to look at your jaw, and it turns out to be significant. It’s not a hedgehog. This is the first primate jaw I know of from the east coast. By all means search the concentrate for any other pieces that could relate to it (premolars would be especially useful)”. This is an example demonstrating that even very good pictures may not be adequate to get an accurate ID of a specimen. Because of the rarity of the specimen I donated it to the Smithsonian Institution. This fossil actually caused the USGS and Dr. Weems to relook at the age of the Eocene Potapaco B Member of the Nanjemoy Formation in Virginia where it was found. I sent matrix samples to the USGS from the hole where the specimen was found and they confirmed that the layer was the Potapaco B Member of the Nanjemoy Formation by looking at the dinoflagellates in the matrix samples. However, Dr. Rose determined that the features of the specimen where much more primitive than the published NP11 date of that layer suggested. So Dr. Weems looked back at all of the research and core samples on the Nanjemoy Formation and determined that the Potapaco B Member of the Nanjemoy Formation was actually about a million years older than previously reported and was in the top of NP10 versus in NP 11. So the age of the specimen was tentatively determined to be 54 to 54.5 Ma. A paper would have been published this spring/summer but Covid-19 stopped everything cold. The Dr. Rose's lab was closed and he wasn't able to compare primate specimens from museum collections because the museums were closed. However progress has been made recently and comparisons with other fossil primate specimens have been completed and a paper is in preparation (first draft is almost done). Figures have been drafted, but there is a problem with the resolution of the scanned images of the jaw, so the jaw may have to be rescanned which requires sending it back to North Carolina. However, optimistically Dr. Rose will submit the paper by the end of this year. I can't say anything about the ID of the specimen until the paper is released. Below is a figure showing representative lower dentitions of Omomyid primates from researchgate.net: Below are pictures showing an artist conception of what an Omomyid primate looked like (alamy stock photo) and a representative Omomyid skull both from Wikipedia.org: Marco Sr.
  5. Hi everyone. I just ordered a cast of a Adapis parisiensis to add to my Eocene display. But after searching for some info on Adapis I have learned that they are apparently extensively studied, but hardly any of the information is available on the internet. So I was wondering if anyone here could help me narrow down some of the very sparse information that is available. I have learned that they are found in the Quercy Phosphorites Formation and in the Paris Basin. But especially on the case of the Paris Basin I really can't find anything on the exact locations where fossils of these early primates were found. Regarding the age of these fossils, I have found that they are from the Ludian stage, which is a European stage that falls in the Priabonian. I know the Priabonian lasted from 37,8 mya to 33,9 mya, but I can't seem to narrow down the exact age of the Ludian. I hope some of you might be able to help me out with some of these questions. Thank you in advance!
  6. Ok, maybe not, but this hominoid swamp dweller could not climb trees or walk upright. Tough to place on the tree of life. https://www.newsweek.com/strange-swamp-dwelling-prehistoric-ape-that-couldnt-walk-two-legs-climb-trees-poses-evolutionary-1478852
  7. I was going to post this in the fossil of the month for July, until I looked at the date it was collected...mid-June. My, how time flies. Last Spring I found a nice Eocene mammal tooth site west of home. In a few hours I collected a few teeth and made a note to return soon. I did so in June and spent another few hours there (as well as exploring other nearby sites). I collected about 20 complete isolated mammal teeth and two jaws. Here is the better of the two. I am pretty tickled with not only this specimen, but this site as well. It will be a lot of fun to keep going back to. That is my fingerprint for scale. The front of the jaw is facing left; the missing jaw joint is on the right. Notice that the first tooth on the left (third premolar) is taller than the others, and that the third molar (right-most tooth) is quite long. As far as I know, these make it a primate. Not a monkey, mind you, but something along the lines of more primitive primates, such as tarsiers. (Then again, the current classification of these things is quite complicated and it may not be a primate at all). There was quite a collection of these things and similar beasts here during the Eocene, mostly quite small and only known from teeth and jaws. so in FOTM format: Date of Discovery... 15 June 2019 Scientific and/or Common Name... Primate Geologic Age or Geologic Formation... Wind River Fm., early Eocene State, Province, or Region Found... Wyoming Photos of Find (Please limit to 4 clear, cropped, and well-lit images.) see below. (If prepped, before and after photos are required, please.)
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