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Found 16 results

  1. has anyone visited the Granton Quarry in North Bergen New Jersey in recent years? And if so, any success? There were a couple of threads here about it but nothing posted more recently than 2013
  2. 1/2 coelacanth

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Diplurus newarki. front and lower half of fish. Late Triassic, Newark Supergroup, Newark Basin, Lockatong Formation, North Bergen, New Jersey. Old Granton Quarry. Scale is in CM.

    © 2019 T. Jones

  3. Partial coelacanth. (Juvenile?)

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Partial small (juvenile?) coelacanth, Diplurus newarki. Late Triassic, Newark Supergroup, Newark Basin, Lockatong Formation, North Bergen, New Jersey. Old Granton Quarry. G-3 layer Scale is in CM.

    © 2018 T.Jones

  4. Potassium Hydroxide Experiment

    With the discussion of using potassium hydroxide to prep clay based matrices I procured some Granton material from the magnanimous Tim @Fossildude19. He sent me several fragments with bits of coelacanth in them for me to experiment with. I very carefully placed a few flakes on the matrix with long tweezers (it is a VERY strong base and will mess you up if you're not careful) and watched in amazement as it immediately began to become liquid. I let this sit overnight and rinsed in clear water. There was no visible effect on the matrix so back into the dish it went for further treatment. This time, I added a few more flakes and allowed it to sit for 3 days. No change. Next, I decided to dump about 1 tablespoon's worth of flakes on it and let it sit until I saw something happen. After a week, there was a minute amount of black clay particles in the dish. I added more flakes. After a total of 3 weeks in solution there was a significant effect but not what I had hoped for. Rather than the matrix dissolving, the piece had split into 3 thin wafers with the same material still covering the fossils. Result of the test... don't use potassium hydroxide on Granton Quarry material. Next, I took a piece to a geologist friend for a hardness test. Overall, the matrix tested at a 3 on the Moh's Scale. Dolomite will remove it very slowly. With this data, my plan of prep attack is staying the same as before. Scribe under a microscope, clean up with abrasive, go slow, take a bunch of breaks, and be thrilled when the prep job is over!!
  5. Reconstruction

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    This is a reconstruction of the late Triassic coelacanth, Diplurus newarki. Reworked by me. (reverse black and white) FROM: FOSSILS AND FACIES OF THE CONNECTICUT VALLEY LOWLAND: ECOSYSTEM STRUCTURE AND SEDIMENTARY DYNAMICS ALONG THE FOOTWALL MARGIN OF AN ACTIVE RIFT. Peter M. LeTourneau1,4, Nicholas G. McDonald2, Paul E. Olsen3,4,*, Timothy C. Ku5, and Patrick R. Getty Available HERE.
  6. A Field Trip To Granton Quarry

    Fossildude19, JefferyP, fossilsofnj and I went to Granton Quarry in North Bergen NJ to collect in the Lockatong Fm for Triassic fish. We had a great time and we all found some interesting specimens to add to our collections While the others were hard at work I came across a rather interesting flatten oval shaped sediment between two layers of the black shale in a small area I was working and at first I really didn't pay to much attention to it until one of them broke apart and I noticed that they seemed to be filled with tiny fish bones. I took the sections of slabs home and two days later took them to the NJSM to have someone look at them and one gentlemen told me that they maybe coprolites....interesting. As I was cleaning them up one of the other oval's flaked off exposing a fish tail and I was also able to expose another one without breaking apart. As you can see the two right section of slabs go on top of each other and the one to the far left slides into the middle slab. No 1 you can see a fish tale and No 1a was laying right next to it but don't seem to be a extension to the tail section when I slit this section apart in the field No 1a became exposed while No 1 remained intact until I got it home... No 1b are the pieces that cover No 1 and No 2 I also exposed without it breaking apart I'm going to leave these as is and when it dries out I will cover it with some type of stabilizer. In the second picture I have another fish that don't have the head attached. When I exposed it ,,it did appear to have the same matrix covering the specimen. Now the funny part about all this is that I never had come across this before while search for fish in this layer. Any Insight would be greatly appreciated.
  7. Need help with Granton Quarry bone I found

    I found this very small bone in a piece of shale from Granton Quarry in the G4 section of the Lockatong formation. It doesn't look like any fish bone that I have found before,,,But that doesn't mean any thing since I'm no expert in this area. It measures 4mm in length and is black . The fish that I have found in the past seams to have a coating of shale residue and when sometimes removed can expose white bones of the fish. I took the photo with my Dino-lite and tried to take the best pictures at different angles Any help would be great. Click to enlarge
  8. Coelacanth

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Poorly preserved skull of Diplurus newarki Late Triassic, Lockatong Formation North Bergen, New Jersey, Granton Quarry.

    © © 2016 Tim Jones

  9. Skull and dorsal

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Diplurus newarki Skull and first dorsal fin. Late Triassic Lockatong Formation North Bergen, New Jersey. Granton Quarry

    © © 2016 Tim Jones

  10. Blue Skull

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    A colorful skull of an unidentified fish, from the Late Triassic Lockatong Formation, Newark Supergroup. North Bergen, New Jersey.

    © © 2016 Tim Jones

  11. Coelacanth Bones

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Bones of a partial late Triassic coelacanth, Diplurus newarki. These layers are extremely hard to split. However, these layers (partially metamorphosed?) also preserve bones and scales very well, either in white or blue. (The blue is indicative of de-phosphatization.) The first and second dorsal fin bones are just visible -still partially covered at the top of the fossil. Also visible are the partially disarticulated Y-shaped vertebral bones (veterbral processes?) Note also the blue scales. Late Triassic, (Rhaetian). Lockatong Formation, Newark Supergroup, North Bergen, NJ. AS ALWAYS - RIGHT CLICK AND SELECT LARGE FOR BEST VIEWING

    © © 2016 Tim Jones

  12. Complete Coelacanth.

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    A complete, if yet unprepped, specimen of the late Triassic coelacanth, Diplurus newarki. Not sure how I will go about prepping this, but I have a few options. Late Triassic, (Rhaetian). Lockatong Formation, Newark Supergroup, North Bergen, NJ.

    © © 2015 Tim Jones

  13. Fish plate

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    A pair of fish on one small slab. I believe the ray-finned fish is either Synorichthys sp. or Turseodus sp. You can see the body of a Diplurus newarki just below the other fish scales. Late Triassic, (Rhaetian) Lockatong Formation, Newark Supergroup, North Bergen, New Jersey.

    © © 2015 Tim Jones

  14. Faint imprint of coelacanth

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    A faint body imprint of the Triassic coelacanth, Diplurus newarki. This shows how difficult these fossils can be to see in the field, and even at home. Late Triassic (Rhaetian) Lockatong formation, North Bergen, New Jersey. AS ALWAYS - RIGHT CLICK AND SELECT LARGE FOR BEST VIEWING

    © © 2015 Tim Jones

  15. Diplurus newarki caudal fins

    From the album Fossildude's Late Triassic Lockatong Formation Fossils

    Diplurus newarki caudal fins - showing traces of the supplemental caudal fin. Late Triassic Lockatong Formation. Granton Quarry, North Bergen, NJ.

    © © 2014 Tim Jones

  16. Hello all! Recently, I had the chance to meet up with a few forum members, and hunt the historic Granton Quarry, in North Bergen NJ. Last Monday, March 31st, I was up at the crack of dawn, 4:00 am, to hit the road and meet my partner for today, forum member Jeffrey P, in Newburgh, NY. I left my house in central Connecticut at 4:15 am, eager to be on the road, and heading towards the Triassic exposures of the Lockatong formation. An hour and a half later, after encountering heavy downpours and sporadic showers, I arrived at the appointed meeting place, a McDonalds parking lot, just off of Interstate 84. Meeting time was 6:00 am, and I arrived around 5:45am. Overly anxious? Not me. I was a little concerned about the weather, as ice pellets were beginning to hit my windshield as I waited for Jeff to arrive. Oh boy. Jeff showed up just after 6:00am, and after our initial greetings, and moving his gear to my truck, we got on our way. Jeffrey and I had collected together before, at my fossil fish site in Connecticut, so the trip down to North Bergen was a fun time talking over our expected strategies for this site, and how different this site was from my usual stomping grounds. We hit a bit of traffic heading into North Bergen, and arrived at our destination, around 7:20 am. Now, … Jeffrey had made two previous scouting expeditions to the site, and had a hunch on where we might find some productive layers of fossils. He had scored some clam shrimp and even had a very nice and possibly complete Diplurus newarki, a Triassic coelacanth! We were both hopeful, but realistic as the Newark Supergroup is notoriously hit or miss. For those unfamiliar with the area, the old Granton Quarry is gone, and on top of what was the main quarry floor, a Lowes Home Improvement Center now resides. There are still exposures of the Lockatong accessible to the north of the actual building., however. This exposure was our target. We stopped in to the Lowes, and met with the manager, Ray, who was perfectly willing to allow us to collect from the exposures on their property, so long as we stayed out of the way of any pending deliveries. We assured him we would be as unobtrusive as possible, and having received permission to hunt the exposure,, headed back to the car to get our gear. At this point, the other half of our collecting team arrived. John (Flyguy784) and his buddy Ken. I have been friendly with John since I joined the Forum back in 2010, and we have conversed fairly regularly, having bonded over our mutual frustration over hunting the Newark Supergroup. John is more of a plant guy, but we had talked in the past of a Granton trip, and when I mentioned to him that I was planning on going, he wanted to come up, if only just to get a chance to collect together. Meeting him, and putting a face to the name was a most welcome part of this trip, and we happily exchanged some fossils between us. It was now around 7:55, and we decided to gear up, and check some of the lower exposures, to see what could be found. The sky was gloomy looking, a light drizzle was falling, and the wind was blowing cold – a gray and fairly miserable start. Water was streaming off of the rocks above, in little runnels which felt great, sliding down your back. In the past, the Granton Quarry has yielded assorted fish, reptile/dino footprints, a little plant material, and some reptile material, including phytosaur teeth and coprolites, a gliding lizard (Icarosaurus) aquatic lizards, (Tanytrachelos) . We all had high hopes, but they were realistically tempered by our various experiences with hunting similar Newark Supergroup sites in the past. We collected the in the black and gray shales infrequently finding bits and pieces of both clam shrimp, and coprolites. Things continued in this vein for a few hours. We finally started to find assorted disarticulated bones of the coelacanth Diplurus newarki! Eureka! By this time, the rain had stopped, the sun came out, and the temperature was rising, steadily. At this point, we narrowed down the hunting to the lower few inches of a seam of black shale, the lower 2 inches of which were extremely friable, and nearly impossible to get out of the wall in any decently sized slabs. After finding a number of cool coelacanth bits, coprolites, and Estheria ovata clam shrimp slabs, between us, we decided around noon-thirty-ish to take a break for lunch, and retired to our cars in the Lowes lot. We snacked, talked fossils, and other various sundry things. An enjoyable time to be sure. We soaked up the sun, and enjoyed it’s warmth on our faces. At least my feet were no longer numb from the earlier cold! My companions were all amiable, and we enjoyed the time together. This is the type of outing that can be enjoyed, whether finding anything, or not. But, we were finding things, so we got back too it. We then decided to take the folding ladder I had brought, and try to access the higher layers of black shale which Jeffrey had managed to climb up to on a previous excursion, and remove a bit of shale that had yielded his Diplurus coelacanth. We set the ladder up, and took turns removing shale, and bracing the ladder for each other. When we got tired of removing rock, we stopped, took a break to split what we had removed, and then switched places. This garnered us some larger slabs, that, while they didn’t provide us with any complete fish, did reward us with some mortality plates of the Estheria ovata, and some more bits and pieces of Diplurus newarki. We continued in this way, while John and Ken scouted some of the lower seams of black shale. Time, as is always the case, flew away from us, and before we knew it, 4:00PM was approaching, and we needed to leave by then to make it home at a reasonable time. We packed up our things, said our goodbyes, and got on our way. Traffic leaving Jersey was smoother than coming in, so we were back to the McDonalds in Newburgh just around 5:00 PM. Jeff and I said goodbye, and went our separate ways. I headed home, to be stymied getting to the Beacon Bridge, for about a half an hour …just to get 3.5 miles or so. I finally arrived home to Connecticut at around 7:30 pm, excited by my finds and a successful hunt in the Lockatong Formation – The Newark Supergroup had blessed me with a few Upper Triassic finds for my collection. Thanks for looking – enjoy the pics. Regards, John (Flyguy 784- background) and JeffreyP (foreground) One area we tried to attack Continued...