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Found 171 results

  1. Trilo-bottoms

    As I prepare a space in the dining room for a large trilobite display, organized by geologic periods and taxonomic trees, I am also cleaning up the database and trying to pinpoint some IDs with a bit more precision, and would definitely be grateful for assistance. The first two are pictured in the first image. On the left is a find from my area with the imported fill, so it could be anything from Bois Blanc, Amherstberg, to Dundee Fms. I am thinking that this is a dalmantid, along the lines of Anchiops due to what appear to be incised axial rings and that wide, flaring upper portion of the pygidium. But I am not 100% sure. If it is A. anchiopsis, it goes in my "to trade" pile as I already have examples of this one. On the right is a gift from John B. and his trip to Wrens Nest with the challenge to prep it out a bit more. The matrix of this stuff laughed at my air scribe as it whined and whined with very little give. I was vaguely thinking Dalmanites myops. Hopefully there is enough detail to be certain. It lacks the pygidial spike if that is the case. I am having some difficulty locating any of my literature on Wrens Nest bugs at the moment. The third is another odd find from my import fill area. It has a pygidial border, that puts me in mind of Pseudodechenella, but it does not seem quite right. The axis tapers to a point and sits high up when viewed from the side. Scale of the tiny squares is 5mm x 5mm.
  2. Coronocephalus gaoluoensis

    From the album Trilobites

  3. Unknown, at least by me

    posting this for a friend. Found in Charlotte, TN. Middle of state. Could be Ord, Sil, Dev, but my guess would be Silurian from the color of the matrix. Any ideas, it's got me stumped. LOOKS LIKE THE AGE IS MISSISSIPPIAN
  4. It was 50 degrees on Sunday so I decided to get out to the Silurian Sugar Run formation to look for some trilobites. I checked out some out small outcrops that I've never investigated before, but no luck. It was starting to get late so went to an old spot that I haven't been to in a long time. The rocks in this formation are very difficult to break open and generally need a sledge hammer, so the best method is to look for "promising-looking" rocks and bring them home to break open. This is what I found: Tiny Calymene Gravicalymene celebra Cybantyx cuniculus double cephalons Group shot Most are pretty beat up but a very enjoyable daytrip. Thanks for looking.
  5. Cephalopod Shell Color!

    Hello all! Recently I have been obsessed with cephalopods and realized there is a real lack of reconstructions of the color patterns on extinct nautiloids and ammonites! This led me to compile a list of known fossil color patterns on cephalopods. After a year of on and off research, I found about 90 species of cephalopods retaining official or undescribed, original patterning on their shells. These are the first 15 species on my list. The color markings are based both on descriptions and photographs of the fossil material. The shades of the markings are based on the fossils, but also inferred. I Hope you will appreciate my work!
  6. I collected this while walking along the shore of Lake Ontario just west of downtown Toronto. I am at a loss. Any help would be greatly appreciated. Thanks so much.
  7. Baby, It's Cold Outside

    The hubbub of the holidays is over. The cold, crisp air has descended here in the Mid-Atlantic. The ground is frozen, but I was craving sunshine and the hunt. With blue skies today and the promise of snow tomorrow, I headed to the one place I was reasonably certain wouldn't be completely frozen -- the Delaware Bay. After all, we put salt on the roads here to keep them from freezing. How cold is it this week? Cold enough to freeze salt water! Here and there, exposed spots dotted the beach and the highest part of the bank, above the high tide line, was still exposed. There were a few pebbles here and there, but the odds of finding something in such scant gravel wasn't promising. I spent the next hour with a friend, exploring the ice formations with cameras. Still, my beloved beach did not disappoint. I found a couple of little favosites corals in the freezing tide pools and a 3-inch chunk of local petrified wood lying along the trash line. There is something ironic about finding petrified - silicified - wood frozen to the beach sand!
  8. I thought today would be a good day to stay inside, relax, keep warm and draw again. A friend requested a particular Trilobite drawing. The subject this time is Trilobite Dalmanites limulurus, a Silurian bug from Middleport, NY. The graphic is more like a technical illustration than a cartoon drawing. It came out how I hoped, using textured paper, a 4B pencil, Charcoal pencil and an eraser.
  9. From the album MY FOSSIL Collection - Dpaul7

    Acantholomina minuta Silurian Trilobite SITE LOCATION: Kopaninské formation, Kosov near Beroun, Czech Republic TIME PERIOD: Silurian (about 420 million years) Data: Odontopleurida is an order of very spinose trilobites closely related to the trilobites of the order Lichida. Some experts group the Odontopleurid families, Odontopleuridae and Damesellidae, within Lichida. Odontopleurids tend to have convex, bar-shaped cephalons, and lobed, knob-shaped glabella that extend to, or almost to the anterior margin. Many, if not almost all odontopleurids have long spines that are derived either from the margins of the exoskeleton, or from granular or tubercular ornamentation, or both. Many odontopleurids are so spinose so as to be described as having "spines on (their) spines." Odontopleurids have 8 to 13 thoracic segments, with Odontopleuridae odontopleurids having no more than 10, and Damesellidae odontopleurids having no more than 13. The pygidium tends to be very small, and invariably has long spines emanating from it in all known genera. Genera of Damesellidae are restricted to Middle to Upper Cambrian marine strata, and may represent a transition between Cambrian-aged lichids, and odontopleurids of Odontopleuridae. The odontopleurids of Odontopleuridae first appear in the Upper Cambrian, and go extinct before the end of the Frasnian epoch of the late Devonian. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Odontopleurida Family: †Odontopleuridae Genus: †Acanthalomina Species: †minuta
  10. From the album MY FOSSIL Collection - Dpaul7

    Acantholomina minuta Silurian Trilobite SITE LOCATION: Kopaninské formation, Kosov near Beroun, Czech Republic TIME PERIOD: Silurian (about 420 million years) Data: Odontopleurida is an order of very spinose trilobites closely related to the trilobites of the order Lichida. Some experts group the Odontopleurid families, Odontopleuridae and Damesellidae, within Lichida. Odontopleurids tend to have convex, bar-shaped cephalons, and lobed, knob-shaped glabella that extend to, or almost to the anterior margin. Many, if not almost all odontopleurids have long spines that are derived either from the margins of the exoskeleton, or from granular or tubercular ornamentation, or both. Many odontopleurids are so spinose so as to be described as having "spines on (their) spines." Odontopleurids have 8 to 13 thoracic segments, with Odontopleuridae odontopleurids having no more than 10, and Damesellidae odontopleurids having no more than 13. The pygidium tends to be very small, and invariably has long spines emanating from it in all known genera. Genera of Damesellidae are restricted to Middle to Upper Cambrian marine strata, and may represent a transition between Cambrian-aged lichids, and odontopleurids of Odontopleuridae. The odontopleurids of Odontopleuridae first appear in the Upper Cambrian, and go extinct before the end of the Frasnian epoch of the late Devonian. Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Odontopleurida Family: †Odontopleuridae Genus: †Acanthalomina Species: †minuta
  11. Wrens Nest Graptolite?

    Dear all, I recently went for a trip to Wrens Nest and found this small, what I believe Dendroid Graptolite. It measures ~2cm (apologies for the poor quality of the image). If anyone could suggest a Sp. ID, or even if it is a Graptolite that would be very much appreciated. Thanks, Tom
  12. I found this along the Fox River in Elgin, IL. At first I thought it was a stromatoporoid fossil (I find them everywhere in this area), but upon closer inspection I couldn't see anything that looked like pillars or laminae. Someone suggested chaetetid sponge, or a stromatoporoid that was distorted by silicification. I can't find any photos that look like my spec. except dino bone and we don't have those in northern Illinois. Is it a natural formation, crazy looking oolites? I'm totally stumped! More pics
  13. Bulbous holdfasts of crinoids

    From the album Fossils from Arisaig Nova Scotia

    The scyphocrinus were floating crinoids and their holdfast was actually an air bladder that supported multiple stems and calyx.
  14. Brachiopods

    From the album Fossils from Arisaig Nova Scotia

    Lovely shell carpet of brachiopods, Silurian. Nova Scotia.
  15. Brachiopods

    From the album Fossils from Arisaig Nova Scotia

    Brachiopod shell carpet on a cliff side, Silurian.
  16. Disorganized chaos

    Well I got a new phone (Samsung Galaxy Note 8) on Black Friday and was playing with it snapping some pictures. Those of you that have been to my house know that I am totally disorganized and definitely need to organize my fossils. Thought I would share some of the disorganized chaos that is my basement fossil dumping area. This tends to be where fossils go to rest if they do not make it to the glass display cases (3) upstairs where I put the good stuff. But then that is a step up from the ones that never get out of the map drawers and boxes in the garage. One of these days I will get around to organizing things, just never happens to be today....... I suspect my kids will end up having to organize it someday......... (That's a scary thought)
  17. From the album MY FOSSIL Collection - Dpaul7

    Emmonsia Coral, a Colony Coral SITE LOCATION: Beachriver Formation of the Brownsport Formation along Hwy. 641 in Decatur Co., Tennessee TIME PERIOD: Silurian Period (ca 430 mission years old) Favositida is an extinct suborder of prehistoric corals in the order Tabulata. The tabulate corals, forming the order Tabulata, are an extinct form of coral. They are almost always colonial, forming colonies of individual hexagonal cells known as corallites defined by a skeleton of calcite, similar in appearance to a honeycomb. Adjacent cells are joined by small pores. Their distinguishing feature is their well-developed horizontal internal partitions (tabulae) within each cell, but reduced or absent vertical internal partitions (septae). They are usually smaller than rugose corals, but vary considerably in shape, from flat to conical to spherical. Around 300 species have been described. Among the most common tabulate corals in the fossil record are Aulopora, Favosites, Halysites, Heliolites, Pleurodictyum, Sarcinula and Syringopora. Tabulate corals with massive skeletons often contain endobiotic symbionts, such as cornulitids and Chaetosalpinx. Like rugose corals, they lived entirely during the Paleozoic, being found from the Ordovician to the Permian. With Stromatoporoidea and rugose corals, the tabulate corals are characteristic of the shallow waters of the Silurian and Devonian. Sea levels rose in the Devonian, and tabulate corals became much less common. They finally became extinct in the Permian–Triassic extinction event. Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: †Tabulata Family: †Favositidae Genus: †Emmonsia
  18. From the album MY FOSSIL Collection - Dpaul7

    Emmonsia Coral, a Colony Coral SITE LOCATION: Beachriver Formation of the Brownsport Formation along Hwy. 641 in Decatur Co., Tennessee TIME PERIOD: Silurian Period (ca 430 mission years old) Favositida is an extinct suborder of prehistoric corals in the order Tabulata. The tabulate corals, forming the order Tabulata, are an extinct form of coral. They are almost always colonial, forming colonies of individual hexagonal cells known as corallites defined by a skeleton of calcite, similar in appearance to a honeycomb. Adjacent cells are joined by small pores. Their distinguishing feature is their well-developed horizontal internal partitions (tabulae) within each cell, but reduced or absent vertical internal partitions (septae). They are usually smaller than rugose corals, but vary considerably in shape, from flat to conical to spherical. Around 300 species have been described. Among the most common tabulate corals in the fossil record are Aulopora, Favosites, Halysites, Heliolites, Pleurodictyum, Sarcinula and Syringopora. Tabulate corals with massive skeletons often contain endobiotic symbionts, such as cornulitids and Chaetosalpinx. Like rugose corals, they lived entirely during the Paleozoic, being found from the Ordovician to the Permian. With Stromatoporoidea and rugose corals, the tabulate corals are characteristic of the shallow waters of the Silurian and Devonian. Sea levels rose in the Devonian, and tabulate corals became much less common. They finally became extinct in the Permian–Triassic extinction event. Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: †Tabulata Family: †Favositidae Genus: †Emmonsia
  19. Another trip to Wrens Nest

    Had a great day out with Candace and Nick @thelivingdead531 @Barerootbonsai Friday 20th. Here are a few of my finds, I’ll post the hash plates when I’ve photographed them. We all got a great variety of finds, here are some of mine. I’m sure Nick and Candace will add to this thread.
  20. One of a number of spiral monograptids from this period and a zone species, these have all been referred to Monograptus at various times as well as separate genera based on rhabdosome form which may not be of significant importance. It is bisected by an unidentified straight Monograptus. Reference for ID (as Monograptus spiralis): Elles & Wood 1901-1918, Monograph on British Graptolites, Pal. Soc. Monograph 33. (Plate XLVIII, fig. 7). Now generally referred to Oktavites Levina, 1928, e.g. in J. A. Zalasiewicz, L. Taylor et al 2009, Graptolites in British Stratigraphy, Geol Mag. 146, pp. 785-850. And here: http://fossiilid.info/9458
  21. Wenlock Edge, Shropshire, England

    This place is just like Wrens Nest Dudley i.e. Silurian. I like both places but find different things at each. Personally I have found more Trilobites bits at Wrens Nest. 1 - Arachnophyllum murchisoni Coral, top view 2 - Amphistrophia funiculata Brachiopod 3 - Favosites Coral 4 - Halysites Coral 5 - Heliolites Coral 6 - Kodonophyllum truncatum Solitary Coral 7 - Labechia conferta Stromatoporoid sponge 8 - Leptaena depressa Brachiopod 9 - Trepostome Bryozoa
  22. This anything 2

    Found in the fill of railroad bed. The nearest cut, a good match to the rock type and carbonate nodules found there, is mapped as the forks formation. This is Ludlow aged turbidite. I have reason to believe that this exact area was not included in the study though. The phyla list includes no corals, but I find them to be abundant. Could be just some clay that got spread into the mix, but it sort of looks like some kind of life form or trace.
  23. Silurian Trilobite Pieces?

    These two finds are in one piece of rock found in some roadside rip rap in Kankakee County, Illinois. Based on other fossils I found and knowing what is exposed in quarries nearby, I believe they are from the Silurian Racine Formation. I have never worked with dolomite before, so I would also love to hear any prep advice you have, as well as IDs! The first seems to be a couple of pleura from a Gravicalymene, but is it likely there is more there? The second one has me puzzled- is it a trilobite part, or maybe a brachiopod? It seems like it is symmetrical, but covered by the matrix. Thanks!
  24. This anything ?

    Found in the fill of railroad bed. The nearest cut, a good match to the rock type and carbonate nodules found there, is mapped as the forks formation. This is Ludlow aged turbidite. I have reason to believe that this exact area was not included in the study though. The phyla list includes no corals, but I find them abundantly.
  25. Silurian trilobite

    Hi, I recently found this in the Wenlockian Sugar Run formation in Illinois. I'm guessing it is a Dalmanites pygidium, but not sure. It has some interesting ornamentation. Any ideas?
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