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Found 55 results

  1. Pycnodontid Teeth

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Large Pycnodontid Teeth Keys Valley Member, Walnut Formation, Fredericksburg Group Albian (Lower Cretaceous) These are the largest Pycnodontid teeth I have seen in the Walnut and were collected by another member of the Paleontological Society of Austin

    © ERose 2021

  2. Worn Loose Pycnodontid Tooth

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    This is another Pycnodontid tooth from the Walnut Formation showing a great deal of wear on one end. The other item in the image is a rather spiny crustacean leg I am still attempting to ID.

    © ERose 2021

  3. Lepisosteus sp.

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Lepisosteus sp. Unit 2, Lower Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) Comal County, TX These small fish teeth are fairly common but not abundant. I Have them from several locations.

    © ERose 2021

  4. Glen Rose Fish

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    This fossil is in the visitor center at Westcave Preserve in Travis County. The stone was quarried from the Glen Rose Formation near Sisterdale, Kendall Co. This is a little over 10 inches long.

    © ERose 2021

  5. Pycnodontid Jaw

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    This large (2" long) jaw is again built into the wall at Westcave Preserve. From the Glen Rose Formation. Quarried near Sisterdale, Kendall County.

    © ERose 2021

  6. Fish Jaw, Unidentified

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    This is one of two jaws that are in the walls at Westcave Preserve. Quarried from the Glen Rose near Sisterdale, Kendall County.

    © ERose 2021

  7. Large Glen Rose Fish

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Another large fish preserved in a hard limestone that was used to build the visitor center at Westcave Preserve. This one is the largest at at least a foot in length.

    © ERose 2021

  8. Pycnodontid Jaw Plate

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Pycnodontid Jaw Plate Lower echinoid marker bed, Unit 2, Lower Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) This is a favorite! I found the two pieces in the same spot TWO YEARS apart. PS they glued back together perfectly.

    © ERose 2021

  9. Various Teeth

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Unknown tooth, 2 tiny Pycnodontid teeth Upper Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) Blanco County, Texas The pycnodontid teeth are fairly common at this local. The longer tooth is quite different and I still do not have a solid ID

    © ERose 2021

  10. Unknown Reptile Bone

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Unidentified Reptile Bone Upper Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) Blanco County, Texas possibly the femur of a marine turtle

    © ERose 2021

  11. Unknown Reptile Bone

  12. Unknown Reptile Bone

  13. Turtle Plastron Fragment

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Unidentified marine turtle plastron fragment Upper Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) Blanco County, Texas Turtle plastron fragments are somewhat common. This is one of the larger pieces I have found at this location.

    © ERose 2021

  14. Turtle Plastron Fragment

  15. Crocodilian Leg Bone

    From the album Lower Cretaceous Vertebrate Fossils of Central Texas

    Crocodile leg bones Upper Member, Glen Rose Formation, Trinity Group Albian (Lower Cretaceous) There were a number of small crocodiles in the Glen Rose. This site has produced other crocodile material

    © ERose 2021

  16. Hi all, this is my first post so please excuse any mistakes. I found this Specimen in the Canyon Lake area if Central Texas. I haven't tried to remove too much of the limestone until I knew more about what this might be.
  17. I found this in the same area where I found the Corbula plate. Found west of Austin, on Highway 290. It was partially still covered, in the side of the road cut, when I slowly wiped away the matrix. Couldn’t believe the length. Immediately stopped collecting and took it to the car for safe keeping. It is not the shell itself but a mold of the shell. Always wondered on the identification. Can someone help me? Thank you in advance.
  18. Central Texas has been experiencing a surprisingly cool September plus quite a bit of rain! And that equals some great fossil hunting! I have gone to a few old spots and a few new spots! All in the Cretaceous Glen Rose. I am just constantly amazed at the amount of fauna in the Glen Rose. It seems like I find something new just about every time I go out! I was happy to find a new species of echinoid - a Goniopygus sp. ( very different from the previous Goniopygus I've found) It's tiny tiny, only 5mm. And I found my first really good vertebrate material - a Pycnodont jaw with teeth and a large piece of turtle (plastron?). And even thought it's no echinoid...it's still an echinoderm - my best find of the month so far....a free swimming crinoid! I had never seen one of these but thanks to the Paleontological Society of Austin and our latest field trip, I found this lovely odd little thing! Plus some good Heart Urchins and some nice little Loriolias. Goniopygus sp. 5 mm Free Swimming Crinoid: 1/2 inch (1 cm aprox) Pycnodont Jaw with Teeth 1 inch A small Cidarid Fragment and some Leptosalenia and Cidarid spines A nice Heteraster obliquetus: 1 1/2 inch A decent Pliotoxaster comanchei. 1 1/4 inch A nice little Loriolia rosana 1/2 inch Turtle bone fragment 2 inches
  19. Hello all! This is a little photo project I've been working on for a while. When I first started Fossil Hunting I was content to collect whatever. Then I was excited about Identifying what I was finding. The education continued and now I work to identify the geological formations I am collecting in and am able to know what fossils to look for in what areas. The Pocket Texas Geology website is invaluable for finding out the formation of a specific area (while not 100 percent accurate, it's pretty good). So I wanted to create a post that would help with Central Texas Cretaceous Fossil Identification and this Species by Formation post. There are a couple of great websites for North Texas Fossil ID, but none (that I am aware of) for specifically Central Texas. I am considering Central Texas to be the counties of Hays, Travis, Comal, Blanco, Bexar, Kendell, Williamson, Hill, Burnet, Llano, Bell, Coryell, McLennon and Bosque. And bear in mind, this is not a comprehensive list of all species found in these formations...still working on THAT! But this is what I have found and ID'd so far. I believe it contains MOST of the more commonly found fossils, plus some uncommon fossils. If you see a mis-identification, please let me know! Also, there are more formations than I am presenting, but these have been the most accessible to me. I will list them by ascending order of time period. My time periods are approximate. (Be aware, I am not a geologist nor paleontologist, just an avid amateur, so take it for what it's worth! ) Cretaceous Formations: Glen Rose, Walnut, Comanche Peak, Edwards , Georgetown, Buda, and Austin Chalk. Glen Rose Formation 106-110 MYA (Upper and Lower Glen Rose combined here) ECHINOIDS Row 1. Row 2. Row 3. Row 4. Row 5. Row 6. 1. Hyposalenia phillipsae Echinothurid plates Plagiochasma texanum 2, Goniopygus sp. Pygopyrina hancockensis Paraorthopsis comalensis 3. Loriolia rosana Goniopygus whitneyi Pseudodiadema aguilerai 4. Polydiadema travisensis Leptosalenia texana Hetearaster texanus 5. Coenholectypus sp. Pliotoxaster comanchei Phymosoma texana 6. Cidarid sp. Heteraster obliquetus Paracidarid texanus ECHINODERMATA ETC. 1. 2. 1. Unknown Crinoid Isocrinus annulatus Echinoderm Madreporite 2. Balanocidarid Spine Echinoid Spine Balanocidarid Spine AMMONITES 1. . Engonoceras piedernales Hypacanthoplites mayfieldensis DECAPODS 1. 2. 1. Crab Claw Unknown Crab Claw Unknown Pagurus banderiensis 2. Pagurus banderiensis Pagurus banderiensis Pagurus banderiensis ETCETERA 1. 2. 3. 1. Porocystis globularis Fish Pycnodont Teeth Turtle Bone Fragment 2. Foramnifera Orbitolina (group) Foramnifera Orbitolina (single) Coral Heliopora labyrinthicum 3. Spirobus Worm Annelid Worm GASTROPODS 1. 2. 3. 4. 5, 6. 7. 1. Neritina sp Semineritina apparata Pleutomaria glenrosensis 2. Natica texana Nerinia texana Nerinia harrisi 3. Fusus haysensis Turbo cuyleri Anchura monolifera 4. Cerithium blancoesnsis Unknown Gastropod Unknown Gastropod 5. Nerinia incisa Pseudomelania pupoides Tylostoma traviensis 6. Natica traski Cerithium bullardi Nerinia aquilina 7.. Tylostoma turmidum Purpuroides harperi Lunatia praegrandis BIVALVES 1. 2. 3. 4. 5. 6. 7. 8. 9 10. Other Bivalves : 11. 12. 13 . BIVALVES 1. Lima wacoensis Arca texana Ludbrookia arivechensis 2. Trigonia whitneyi Exogyra paupercula Plicatula parkerae 3. Brachidontes pedernalis Chlamys santoni Granocardium pseudopendens 4. Neithia occidentalis Cardium congestum Arctica comalensis 5. Pinna comancheana Granicardium pendens Fimbria hamiltonae 6. Trigonia gordoni Homomya comalensis Laternula simodsi 7. Psilomya walker Trigonia wendleri Homomya knowltoni 8. Tapes decepta Panopea henselli Arctica texana 9. Psilomya banderiensis Protocardia texana Arca medialis 10. Cyprimeria texana Idonearca terminalis Arctica roemeri 11. Lopha comalensis Ceratosterean texanum Exogyra guadalupae 12. Peilinia crenulimargo Liostrea ragsdalei 13. RUDISTS: Monopleura sp. Toucasia sp. Kimbleia capacis
  20. Coprolite on Matrix - if it is?

    Hello all! I purchased this fossil several years ago, The location given is 'Glen Rose, Texas, private ranch', and was labelled as 'Lower Cretaceous' coprolite on original matrix. I am 90% sure that the coprolites have been lightly stained with a brown stain. I have dozens of legit coprolite specimens from across the Southwest (but mostly Permian and Triassic), but I have never been convinced that this specimen, which definitely has potential for being authentic, actually is. Any insights you can provide would be deeply appreciated. [P.S., this is the 5th of 5 specimens that I'm posting for ID today; I deeply appreciate any insight that you can provide]. With gratitude, Ryan
  21. Glen Rose theropod track (2)

    From the album Dinosaurs

    I took this photo a while back in Dinosaur Valley State Park. Texas was in the midst of a drought, so the river that usually flows over the trackway was dry. I wish I had taken more photos (with a better camera too). These 3-toed theropod tracks are from the Early Cretaceous, and were likely made by Acrocanthosaurus.
  22. Glen Rose theropod track (1)

    From the album Dinosaurs

    I took this photo a while back in Dinosaur Valley State Park. Texas was in the midst of a drought, so the river that usually flows over the trackway was dry. I wish I had taken more photos (with a better camera too). These 3-toed theropod tracks are from the Early Cretaceous, and were likely made by Acrocanthosaurus.
  23. HI all! I found a new to me crab leg! At least I'm fairly sure it's a crab leg! But I have not seen one like this. It's from Canyon Lake area in the Lower Glen Rose formation. I've looked at some of the literature but am not seeing anything that looks similar. Any help would be appreciated!
  24. I have been TRYING to find some shark teeth in the Cretaceous Glen Rose Formation around Canyon Lake (not a lot of shark teeth in the Glen Rose Formation!) But I know they are there...just far and few between, as my parents would say. Soooo....finally stumbled across this tiny little thing. It's not your classic cretodus, obviously, but could it be a tooth? With the root broken? What gives me pause is it is grooved along the front curved edge.. There is a distinct furrow. Perhaps it is an enchodus tooth? I don't know enough about vertebrates to know. Also, found a little group of what.I think might be pychnodont teeth, but I am just not sure! Any help with ID'ing these would be appreciated! Thanks so much! Tooth ? Measurement in inches All Four Sides: Top with furrow Side - you can see the furrow on the left side Underside (Back side) Pycnodont teeth? Measurement in Inches From the side
  25. fossil I.D.

    Found this fossil in central Texas (Glen Rose formation), but it was found in rock that was hauled in around my sister's house. So I don't know if it's Cretaceous or not (sure looks like central Tx limestone, tho).
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