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  1. With a little bit of the fern revealed I took my smallest chisel and smallest hammer to split this specimen. Width of left specimen is 5" (approx 100mm) about 25mm of fern was showing initially
  2. It was hard to believe that six years had passed since I last visited the badlands of the San Juan Basin...if you are interested, I posted a few of those previous trips here and here. With a new field season upon us, @Opuntia and I made our first (of hopefully many) exploratory mission to the Upper Cretaceous Kirtland/Fruitland badlands of the SJB... ...so interesting and beautiful. I am looking forward to getting back up there to see what may lie around that next bend. Until then, Happy hunting. -P.
  3. Kato

    Iron nodules

    Hi, I'm having a brain lapse and need help identifying the form of iron I'm seeing. Some of the nodules I found seem to have a cubic structure much like standard pyrite but others are perhaps suggestive of hematite in its many crystalline forms? Also, some of the crystals are a glassy reddish color and slightly gemmy in appearance while others are completely black. Apologies for the shots. They were taken outside in a shady area but some of them show a yellow reflectance on the top facing reflective faces. Only the 3rd shot of the black nodules actually has yellowish and red staining. These were found coincident to a formation known as the Sly Gap formation which is a Devonian formation here in southern New Mexico. I believe I recall reading that that formation had nodules like this. The nodules range in diameter from 10mm to 30mm.
  4. I stumbled across this. I can't quite make out what it is so I'm asking for some suggestions. It is rather large at 50mm ( 2 inches) in diameter. Although, I do see crinoids in the rock I don't think this is a crinoid calyx simply because I've never seen one this large in our area or even this well preserved. I'm figuring some other form of sea life but at that point I run out of ideas. Any thoughts? Found in New Mexico, Sacramento Mountains, Pennsylvanian Beeman formation.
  5. JenniferWMH

    Mystery atlas vertebra

    A friend of mine in New Mexico has this vertebra in her studio, and asked if I could identify it. My phone charger is 5.5 inches across, for scale. It certainly looks like an atlas vertebra, but I am stumped regarding the species. The foramenae and occipital facets look pretty diagnostic, but my comparative skeletal anatomy is really rusty and I need some help with this identification! It doesn't look like horse, cow, moose, or elk, or mammoth, or mastodon, or ground sloth, for that matter. It is most like Bison bison, but not quite typical, I don't think, but I don't have access to a research collection to compare. It doesn't look quite like the Bison antiquus or latifrons specimens for which I could find pix - looks most like Bison priscus, but that seems unlikely. I don't have the provenance on this. It looks like there was some carnivore scoring perhaps, some weathering, but I'm not seeing butcher marks in my pix. I took quick pix on the fly, not realizing it would stump me! I'd appreciate any thoughts you might have!
  6. What layer are the ammonites in, the yellow stuff? And in that Km? I went once and covered roughly the parts marked on your map here in red. I found a lot of the gastropod stuff but not the ammonites.
  7. rmac1757

    Bone ID

    Would like thoughts on this bone I found in Northern New Mexico, Colfax county, approximately 6,800 ft elevation. Area has lots of remnants of sea shells and marine life. It's concave on one end and convex on the other. I'm also including a photo some of the shell specimens that we're located in the same area. Im always out looking for fossils. I just enjoy exploring and searching for things from the past.Any help would be greatly appreciated.
  8. Sisco Kid

    Upper Cretaceous Bone, Re-do

    A surface find in an Upper Cretaceous area of northwestern New Mexico, about 3 1/2 inches tall, 5 inches wide and long.
  9. Sisco Kid

    Upper Cretaceous Bone, Re-do

    This is a re-submission of my post from Thursday, Feb. 15, 2024 with the addition of a short video of the specimen. The photos just didn't make as much sense since it was hard to follow orientation. The bone was a surface find in northwestern New Mexico and is about 5 inches wide, and 3-1/2 inches tall. 20240216_133319.mp4
  10. Hi, I'm pretty sure this is a favosite coral but how does one determine the species? It was found in a middle Pennsylvanian formation. I had to leave the base of this coral until I can go back with some tools to hopefully successfully remove it. Measurement is 100mm x 80mm and 70mm tall. Any coral experts out there to narrow this down? Thank you, Kato
  11. Hi, I'm cataloging some finds and would like to learn more about how to identify predation. In the dozens of specimens I have of cordaite leaves from this particular formation, only two have properties suggestive of predation of some sort. The rest are either undamaged or show signs of splitting in the leaves. How do I identify predation? What are the sources of predation? Arthropods? Microconchids? I've searched on google but not found any satisfactory information. Any guidance appreciated! Thanks, Kato I can't find the other half of this split pair currently but the other half is the mirror image of this. I'm thinking this is just missing parts of the leaf due to natural decay processes before preservation.
  12. I was hiking up a ridge between two washes looking at exposed formations for plant and insect fossils in mid-to-upper Pennsylvanian formations. I came across a possible sandstone formation with no evident bed layering. This formation was 1-1.5 meter thick and appears to have plant fragments scattered throughout. Perhaps the fragments are actually the result of this being a high energy deposition area and sedimentation of another type was broken up and preserved in the matrix. Preservation is poor. No evidence of shells of other sea fauna seen in examining the specimens. In the first photo is 'looks like' branching of some type is preserved as seen in the upper middle. The length of that branched object is about 200mm or 8 inches. Branching like this is not something I'd expect for ferns or other plants of the time like cordaites, calamites, etc. Second photo shows larger objects of maximum length 40 centimeters (about 16 inches). The top of the central most piece is what has me thinking this is sedimentation that was broken up and captured in the matrix. There seems to be layering which is not something I'd expect of plants from about 300 million years ago in this area. Again, there seems to be a lot of smaller fragments captured in the rest of the matrix. A 3rd photo showing another object. The lower, larger object suggestive of branching Any ideas of what I might have been seeing? Perhaps some suggestions of what I should try to look for when I cross this formation again? Thanks, Kato.
  13. tekknoir

    Coral? Sponge?

    Hi all, Was wondering if anyone has any ideas on this one. I'm thinking maybe some kind of coral or sponge, but I'm not sure. Found in Truth or Consequences, NM. There are quite a few Pennsylvanian marine fossils in the area. It's pretty heavily mineralized, but if you look carefully at the photo with the scale, there are two dark strands running across the center that are segmented. Thanks for any input!
  14. Raysun

    Possible seabed?

    Found near the Black Range Mountains in Grant County NM. Not sure what it is if nothing but a rock. Was worth picking up either way.
  15. Raysun

    Geologic?

    Found in Mimbres Valley near Bear Lake. Not much to say about this piece other than it's odd shape and that it's quite dense for it's size.
  16. Traveller1

    Stromatolite fossil

    Hello,my name is Jeff, and I live in Albuquerque New Mexico. I found an interesting rock & posted it to local Facebook group. Several people identified it as a Stromatolite. Can someone help identify? It is 4” tall, 7” long, 41/2” wide. Can’t say for sure weight, I guessing 2lb.
  17. Sisco Kid

    Ankylosaur Osteoderm

    Discovered in 2023 in northwestern New Mexico, I found what is believed to be an ankylosaur-type osteoderm. Compared to many other fossils of that type, it is rather small and thin, with a diameter of 88mm X 75mm, and measures 21mm thick from the flat basal surface to its peak on the opposite side. The thickness of the edge is 8mm. The basal surface is remarkable in that it is essentially intact, and displays an intricate web of structural fibers. These photos were referred to a prominent paleontologist in Switzerland who believed the osteoderm may be from an ankylosaurus in the family Ankylosauridae. A local paleontologist was also notified of the find. Any observations or additional information on this osteoderm is invited.
  18. Sisco Kid

    Hexagon-sided vertebra

    This fossil appears to be a vertebra, and was located as a surface find, possibly in a Late Cretaceous area of McKinnley County, New Mexico (northwest portion of the state). The geological formation is not known. The fossil is hexagonal in shape, and measures about 6.5 cm. in diameter, and 6 cm. thick. Any ideas on the original type of beastie? Thanks.
  19. Hello, I'm simply looking to buy a phytosaur tooth and I was wondering if it's authentic. The pictured tooth is from the Redonda Formation of New Mexico and Triassic in age. Thank you.
  20. Lucas, S.G., DiMichele, W.A. and Karnes, J.M., Unusual Sandstone Cylinders from the Lower Permian Glorieta Sandstone, Northern New Mexico. New Mexico Geology. vol. 44, no. 3, pp. 63-75. New Mexico Geology Volume 44, Number 3 - Full Issue New Mexico Geology — Back-issues Yours, Paul H.
  21. Raysun

    New Mexico find

    Was found at a depth of around 8 feet underground in the desert of New Mexico. It's roughly the size of a softball. Any ideas?
  22. Study confirms age of oldest fossil human footprints in North America Two new lines of evidence support the 21,000 to 23,000-year age footprints first described and dated in 2021, USGS, Earth Science Matters Newsletter, September 5, 2023 Public Domain media images Yours, Paul H.
  23. Raysun

    "Sonny" side up..

    Found in southern New Mexico by my late aunt. When I came across this rock on her desk it looked like she had been working one side by means of small tools like picks and brushes so naturally I did my best to continue where she left off. Approximately 40 hours in total and a picture began to emerge. I share a few photos now in hopes to understand what they show. It measures roughly 6 centimeters by 3 at it's widest.
  24. NMfossilhunter

    Horse tooth

    New to the site. I found this tooth in the mountains while digging a 14ft hole it seems fossilized but I am not totaling sure. It has crust that does not come off and is solid. I’m new to fossil hunting and do it as a past time. I was wondering what the group could tell me about this. It was at a pretty high elevation. I usually find shells but never mammal fossils up there. Any suggestions would be much appreciated thank you
  25. Just unwrapped this one and doesn't look like much but that's from an uneducated perspective.
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