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Found 107 results

  1. Is this a fossil?

  2. I recently purchased this piece from a fossil dealer. It has a complete head shield of Americaspis americana and two partial head shields. Based on the information I could gather, my guess is that it was originally part of an old collection; however, since the piece had been with the dealer for a long time, they could not confirm how they acquired it. The information card I received with the fossil states that it is from the Wills Creek Formation in Perry County, Pennsylvania. I understand that to be the location of the now-closed site where you could find head shields of Americaspis americana. When I received the piece today, some suspicions arose, which may or may not be justified. I was hoping @fossilcrazy @traveltip1 or someone else with familiarity with Americaspis americana could help resolve some of my concerns. My concerns are two-fold: (1) The head shields have been painted with a brown paint. It is possible that the original owner did this to contrast the head shields with the surrounding matrix. The paint alone is thus not a reason to say that this is fake. What is weird though is that in areas where paint has been removed, there seems to be a strange bluish color beneath it. You can see that in some of the partial head shields. (2) On one of the ends of the piece there is an edge that appears to have been cut by a saw and a portion that was left natural. There is a contrast in color again between these two surfaces. What am I to make of this? I saw a piece on another auction site that looks very similar to my piece. Is it possible that someone faked a number of Americaspis pieces and they are now floating around? The Piece The Head Shields The Suspicious End
  3. Brush Creek Pennsylvanian Marine Life

    Last month I made my last trip for the year into Pennsylvania. I was hoping to stop at Swope Quarry in Mapleton, but the site is now posted. With a quick change of plans, I decided to travel even further west and visit some Late Pennsylvanian marine sites that I had planning on visiting on a different trip. The two sites I visited expose the Brush Creek Marine Zone, Glenshaw Formation, Conemaugh Group. They date to the Late Pennsylvanian (Missourian). Fossil collecting at these sites was a lot of fun as the fossils just pop right out of the surrounding shale and can be picked up by hand. But they are very fragile! I felt like Dr. Frankenstein putting some of the fossils back together. I always wanted to add a Worthenia gastropod to my collection so I was really excited to add a couple at one of the sites. By the time I made it to the second site the sun was already going down and I had a long drive home. I ended up bringing back a big block to break down, and I was astonished to find a Metacoceras fragment in it. I apologize in advance for some of the photos. As some may know, the gastropods of the Glenshaw Formation tend to be very small and dark, so it is challenging to photograph them. I used my new digital microscope on some of them. I hope you enjoy! I tried very hard to find a correct identification for everything. If you have a different identification, please let me know. Cephalopods Metacoceras sp. Pseudorthoceras knoxense Brachiopod Neospirifer triplicatus Bivalves Astartella concentrica Solenomya trapezoides Edmondia sp. Edmondia aspenwallensis Coral Stereostylus sp. Trace Worm Burrow Gastropods Worthenia tabulata Strobeus primigenius Euphemites vittatus
  4. Syringodendron?

    These two pieces were collected several years ago in Centralia, PA (Llewellyn Formation; Late Pennsylvanian). For a long time I had no clue what they could be. After recently coming across a publication titled "Fossil Plants From the Anthracite Coal Fields of Eastern Pennsylvania," I think I have a better idea now. I was hoping that someone with more knowledge in paleobotany could confirm my suspicions. I have seen several version of Syringodendron online, but the image in the publication seemed to match these pieces. What do you think? Any help is greatly appreciated. Thanks! #1- There are a series of "welts" on both sides of the piece that seem to run in pair on a bit of a diagonal line, as seen in the second and third photos #2- This piece similarly has a pair of parallel "welts" on the upper lefthand side, as seen in the second photo. The third photo is what is on the review. It doesn't appear to be well-preserved, so I have no idea what it could be - perhaps more Syringodendron
  5. Calamites or Cordaites?

    Many years ago my dad and I visited St. Clair, PA to collect its famed Late Pennsylvanian plant material. With the closure of St. Clair to public collecting, several years ago, we went to the next best place: Centralia, PA. In going back through our finds to ascribe a proper classification to them, I have come across several finds that I believe could either be Calamites stems or Cordaites leaves. The issue is that these fossils preserved without much detail to go on. In doing some research online and on here, I think I have figured it out, but I am not completely sure. Any help is greatly appreciated. Thanks! At St. Clair, we found several of these wide impressions. It appears to lack any diagnostic features to make it easily identifiable. Calamites stems? At Centralia, we found this not-as-wide impression. This one does have some detail to it. You can see what looks to be veins running vertically. Cordaites leaf piece? This issue though is that we also found this larger impression at Centralia that I also believe to be a Cordaites leaf. This similarly has vertical lines, but they are somewhat different from the other piece. I don't think this is a Calamites stem impression because of its width and the fact it is missing recognizable horizontal breaks. But perhaps I have this all mixed up.
  6. Annularia or Asterophyllites?

    A couple of years ago I visited a site in Central Pennsylvania with exposure to the Late Pennsylvanian Llewellyn Formation. I found a lot of Annularia and Calamites pieces. I also found this single whirl. I initially chalked it up as just another piece of Annularia. I recently came across the publication "Fossil Plants From the Anthracite Coal Fields of Eastern Pennsylvania." The publication has been very helpful in assisting me put a species identifications with all of my finds from the various Llewellyn Formation sites I have been to. When I tried to compare this piece to the images of Annularia in the publication they didn't quite fit. That got me thinking that it could actually be Asterophyllites equisetiformis. However, I haven't seen an example of Asterophyllites that has this pinwheel look to it- most of the examples I have seen are preserved with their leaves pointing upwards, not outwards. I have also attached an image of what I believe to be Annularia stellata that I found at the same site. You can see the clear differences between these pieces. Any help is greatly appreciated. Thanks! Asterophyllites equisetiformis? Annularia stellata
  7. Pennsylvanian Bivalve Help Needed

    I recently visited an exposure of what is likely the Brush Creek section of the Glenshaw Formation, Conemaugh Group (Late Pennsylvanian) in Western Pennsylvania. I brought home a large block of material that I subsequently broke down. I was excited to find in the block a nice Worthenia tabulata, several smaller gastropods and even a fragment of the nautioid Metacoceras. I also found this large bivalve. I tried to cross reference this fossil against lists of fauna from the Brush Creek and while it strikes me as similar to Edmondia sp., I am not that confident, especially given the size. When searching in the Brush Creek I have typically only ever found the common, small bivalve Astarella concentrica, so this much larger bivalve has me stumped. Any help is greatly appreciated.
  8. Triassic Wing Ribs or Sedimentary Trace?

    Found this piece on a walk near a Triassic outcrop in Pennsylvania, has a pretty exact visual similiarity to the wing rib of a Triassic reptile but is likely just some form of sedimentary trace. It would be great to get some more opinions on this piece to see if its worth holding onto or I would label it to be definitely sedimentary and rid of it, which I feel is the case.
  9. Catskill Fm Plant Material?

    While collecting in the Catskill Formation of Pennsylvania I came across this piece that struck me as a little strange. It is different from other plant material that I have seen/found at the Red Hill site. I ended up bringing it back home just because of how odd it was. Is this perhaps Callixylon? Alternatively it could just be geological. Any help is greatly appreciated. Here is a close-up of the big piece in the middle:
  10. St. Clair Lycopod Leaves

    I found these two pieces many years ago during a visit to St. Clair, PA (Llewellyn Formation; Late Pennsylvanian). I initially identified them as Cyperites but now I am starting to confuse myself because, as you can see in the third photo, these leaves are much wider than what I would normally attribute to a lycopod, which I have always understood to be long thin wispy leaves. The fourth photo is meant to provide a more close-up image of the leaves. Should I stick with the Cyperites identification or is there a more accurate identification? Any help is greatly appreciated The two pieces: The width of the leaves A close-up
  11. Seed Cone

    From the album Plants of the Lewellyn Formation

    Early Conifer Fruit/Seed Body about 4" long Pennsylvanian Age (308-300 MY) Lewellyn Formation Columbia County, PA The impression is coated in white iron oxide left from original plant material during fossilization.
  12. Inspired by a post last week by @I_gotta_rock, I decided to take a bit of an impromptu trek out to Centralia to add some of the famous white fern plates of the Lewellyn formation to my collection. I say impromptu because I was told I needed some pretty good rock climbing gear to be safe at the site, I ordered some pretty nice rock climbing gear too, still decided to go take a peek before everything arrived leading to one heck of an adventure that still has me smiling from ear to ear. We got our stuff ready to head out bright and early when I immediately hit my first snag, last week's adventure to the C&D canal left me with an absolutely lovely set of scars above my ankles from the thickets of exactly-the-height-of-my-ankles thorn burrs that had overgrown the spoil piles. Given that the scars were still healing, I decided to forego my normal high cuff desert boots that would surely rub against them all day for my trusty pair of low cut boat shoes. I'm pretty good on my feet right it'll be just fine yep. Off we went, excited to check out the mystery 'burning town' and the fossils said to be found there, a decent bit into our drive down 61 I noticed a billboard for 'Deer Lake Pub & Restaurant'. I thought to myself "wait didn't some guy find trilobites behind some bar in Deer Lake?" oh he sure did, queue "Hey hun, wanna have dinner at that nice little pub on the way back? maybe check out the rocks around the random excavator they have in the parking lot?". I got the go-ahead and gave a silent fist pump, two birds with one stone! We had barely any trouble finding the site out in Centralia, thanks to excellent directions from @I_gotta_rock and an encounter with a man and woman on the path out as we were headed in. He held a gigantic slab of black shale as triumphantly as any athlete with a trophy and she followed behind hefting a yellow 5-gallon bucket. Few words were exchanged but I do hope they browse this forum. Not too shortly after we arrived at the slope of scree and made our way to the top to survey the site. The view was breathtaking, overlying the subtle thought of "hold up it didn't look this steep in her photos" - though an adventure we came for an adventure we were going to have. We spent the afternoon slipping and sliding across the scree, maintaining a low center of gravity (butt-scooting) as we clambered up and down the slope. To say the site was plentiful would be an understatement, we were literally walking over layers of fossils. I decided to focus primarily on collecting small/medium sized specimens as the shale was quite fragile and dragging a 15lb chunk of rock up that slope would've brought me too close to my own mortality for comfort. We wrapped up our time in Centralia after collecting our fill and emptying my shoes of scree for the 10th time, leaving enough time for a short drive down 61 to Deer Lake. As the sun was setting we pulled into the parking lot at Deer Lake Pub & Restaurant, parking a stone's throw away from a freshly made cut into the Mahantango beneath a nicely perched excavator. We took a short look around the site, primarily shale/scree with plenty of good looking rocks to hit with a pick. Hoping for a trilobite we lost the race against the sun going down but did make out with a small bounty of brachiopods and a crinoid stem. All told, I couldn't be happier with the day's haul having just finished basic prep work at 10PM. I'd say the finds of the day were a mystery specimen from Centralia that i'm hoping is some sort of seed, a clean/closed clam like brachipod from Deer Lake and numerous well defined small to medium sized fern plates. Site view - Centralia Site view - Deer Lake
  13. I found this nice specimen while hunting for 'white fern' plates out in Centralia, PA. Based off of the size, shape and definition, I'm curious if its a seed of some sort? I left the seed un-prepped with the white silicate mix still present, would love help with an ID
  14. Trigonocarpus?

    I recently collected this plate out of a block of shale full of Alethopteris fronds from the spoils of a coal mine in Pennsylvania. You can see some of the Alethopteris on this piece. My initial impression is that these are seeds, with Trigonocarpus serving as the kinda catch-all for Pennsylvanian fern seeds. However, I have never seen an example of Trigonocarpus that has these markings. Both of these fossils have little, golf ball-like dents on them. The fossils measure 4cm and 2.5cm respectively. Has anyone seen something like this before? Do these markings mean that these are something different than Trigonocarpus? Any help is greatly appreciated. Thanks!
  15. Pennsylvanian Lepidodendron Mystery

    I recently collected this piece with these two articulated fossils at an exposure of the Llewellyn Formation in Pennsylvania. They are respectively 14cm and 16cm in length. Based on an image in a book I initially thought they were Lepidostrobus (the cone of Lepidodendron) but now I am having my doubts. Examples of Lepidostrobus that I have seen on the Internet include the scales that come off the cone and these fossils clearly do not have these scales. On the other hand, these fossils have the typical diamond pattern that is characteristic of the bark of Lepidodendron, leading me to believe that these are examples of its branches. Yet they don't really look very branch-like with how thin they are and how much they bend. Does anyone know what these could be? Any help would be greatly appreciated.
  16. Mahantango formation clam or armored fish?

    Could it be Zascinaspis heensi or just a clam?
  17. Hello everyone, I am currently looking for any PDFs that list the Palaeozoic fossils of the North Eastern United States, I am especially interested in the Devonian of New York and Pennsylvania as this is the most familiar to me. I have had the Linsley PDF for a while now and it has been very helpful but it does not go into much detail about echinoderms, corals, or non-brachiopod lophophorates like bryozoans found in NY which I would like to learn more about. Thank you for any help, Misha
  18. PA Ordovician Unknowns - ID Help

    I recently collected these three fossils on a trip to the Salona Formation in Pennsylvania. I was able to identify everything I found except these three. Any help would be greatly appreciated. #1 - initial thoughts were Cryptolithus genal spine but it seems very large for Cryptolithus and I did not immediately see the pits that are normally associated with Cryptolithus #2- perhaps some type of sea plant? #3- no idea. It reminds me a little bit of Tentaculites. It measures about 1 cm in length.
  19. PA Ordovician Starfish

    For Father's Day Weekend my dad and I drove into Pennsylvania yesterday to collect Ordovician fossils at a location I read about with access to the Salona Formation. With rain in the forecast I was a little worried the trip would be a total wash. Instead, we experienced beating sun, and, having left our hats at home, we quickly began to overheat. My dad also found two snakes while overturning some large rocks. To say the least my dad was ready to leave after an hour. Luckily I was able to convince him that if he wanted to stop he should at least let me poke around for another 30 minutes. While I was poking around my dad decided that it would be safer for him to remove and examine new material than to work in the talus. We worked for another hour before calling it a day. When we got home I went to work washing off the many hash plates my dad exposed while removing new material. The plates were covered in a fine layer of dust so it was incredible to see what they fully held after washing them off. As I was washing one plate I had to stop myself in the middle. I could not believe my eyes. In the bottom corner of one plate there was a rather familiar shape that I was not expecting to see. I immediately knew what it had to be. In all of the literature I have seen no mention of starfish fossils being found at this site. Given that my dad was ready to leave after an hour I consider this find even more lucky. Although I did not have anything to go on, I believe that the starfish is Promopalaester bellulus. It certainly made for an exciting and memorable Father's Day Weekend! Here are some of our other exciting finds: Hash Plates with Bits of Cryptolithus Ventral Ceraurus Cephalon Pygidial Spine of Ceraurus Ventral Isotelus Thorax
  20. Hello, I was wondering where to find PA fern fossils. I've heard of both the Carbondale and St. Clair sites, but I've read these are both closed to collecting. Where else could I find some decent fern fossils? I am from NJ (so this would have to be on the East/Central parts of PA for a day trip).
  21. Pennsylvanian Fern ID

    Several years ago I collected these ferns in central PA. I am currently working back through my collection making sure that everything has an identification. I have most of the identifications down, but could use some help pinpointing or confirming these identifications. Any help is greatly appreciated. Thanks! #1- ???? - I tried to tip it in the light so that it is more visible. It measures about 53mm #2- Neuropteris ovata? #3- Macroneuropteris scheuchzeri? It measures 40mm #4- Neuropteris? #5- Neuropteris on the left? I know that it is Macroneuropteris scheuchzeri on the right #6- Macroneuropteris scheuchzeri? #7- ???? - It looks like a branch with thorns
  22. Plant, Insect?

    Discovered in 1960. From Central PA farm field. Approx. 4" x 8" Was longer but was used as door stop for decades and slowly chipped away. Appears to be sandstone IMG_0344.HEIC IMG_4221.HEIC
  23. I have been slacking in my posts the past couple of trips, so I figured I would catch up. First up are carboniferous plant fossils from McIntyre Mountain, PA:
  24. Starfish ?

    In the fall of 2011 I got of the train in Harrisburg on my way to Red Hill for my first dig with DVPS and waited for the rental car shuttle. The folks there voiced concern that this snow storm might interfere with the dig. Anyway, I dug this from under a snow covered stump up the highway at Swatara State park the next day. Looking at it recently, I noticed this shape that seemed different than the fenestrate bryozoans that were common in the samples. Any chance this is a starfish ?