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Found 21 results

  1. Hi All, So I recently got this slab with a Annularia and Laevinopteris The seller claims that the bumps on the leaf surface are the seeds. Is this correct? TBH I am not too fussed either way, as I would have probably bought this without this "feature".
  2. Plant lovers rejoice! New Species of Annularia in Portugal described. Also had a fossil insect gall https://sciencex.com/news/2020-04-species-ancient-horsetail-gall-reveals.html
  3. Conditions in Western PA have been unusually warm recently, with highs in the 40s and 50s. I decided to take advantage of this warm spell by getting a little bit of fossil hunting in. I decided to do a hunt focused on plants as I’ve been hunting for vertebrates for the better part of the last year and a half and, although I could never get tired of vertebrates I thought some variety was well overdue. So I headed to one of my favorite plant localities in the area. It is located in the Connellsville Sandstone of the Casselman Formation, which is in turn the upper half of the Conemaugh Group. The sandstone is around 305 million years old. The Casselman Formation holds the record of the tail end of one of the largest plant extinctions in our earths history. The prolonged wetness that had existed for much of the Pennsylvanian gave way to dryer conditions, and, as a result, the lycopsid forests fragmented. Many of these lycopsids went extinct during this event, which is known as the Carboniferous Rainforest Collapse. Conifers took advantage of these newly opened ecological niches. Their fossils have been found in this area, although I have never personally found them. Anyway, on to the fossils. Today I mostly found partial Pecopteris fronds, Neuropteris pinnules and Annularia leaflets. I’m going to include some of my better finds from other trips as well, as this trip was rather unproductive. Pictured below is the best Annularia I found today. Or Asterophyllites. I’m not sure. We’ll just go with Calamites leaves for now.
  4. L.S., To liberate storage space, I would like to offer the following plant fossils for trade. All specimens below come from the Late Carboniferous of the Piesberg quarry near Osnabrück (Germany). Scale on photographs in centimetres (1 inch = 2.54 cm). Specimens B, C, F and G show neuropterid fronds of various sizes (most likely Laveineopteris rarinervis). Note specimens B and G were recovered broken and have been glued/repaired. Specimen E is a large plate and shows reproductive structures of Calamites (E-1), a Laveineopteris frond (E-2), a strap-like Cordaites leaf, and some Annularia-like leaf whorls. If interested, I could also offer the counterpart of E. If preferable, I can cut specimen F to size (currently large slab of rock for the actual imprint). In general, please note that these specimens are rather large and heavy (I will cover the shipping costs, but you will need space to display these pieces). In return, I would be mainly interested in plant fossils from the Devonian to Cretaceous (but feel free to offer younger material also). Kind regards, Tim Specimen B: Specimen C: Specimen E: Specimen F: Specimen G:
  5. Mazon Creek fossil plants: Part 1

    Hi guys! Long story short, a rather large collection of Mazon Creek fossils has been donated to my university. I thought I'd share some pictures of the collection and confirm some preliminary identifications. There are a lot of specimens so I will probably split this into two posts. Annularia radiata Annularia stellata A whole bunch of Annularia stellata?
  6. Arkansas ferns x3 and Annularia ID.

    These were fossils my dad found over 20 years ago I think and gave to me maybe 10 yrs ago. I had completely forgotten about them. My dad use to be a land man for an oil and gas company. So he traveled the area extensively trying to get leases to drill for gas. I believe they are from somewhere near Mansfield, Arkansas from the Atoka or McAlester formations, both of which are Pennsylvanian. Any my help with ID would be greatly appreciated. First Piece The longest blade is about 55 mm long by 13 mm wide. A close up of some of the blades on the left side. I think there are 2 varieties here, not sure if the arching one is like the ones in the center and to the left of it. The center one is the top side of the blade and the one to the left and arching one appear to be the underside of the blades. It’s cool to be able to see that much detail. Then there is a different variety on the top left corner. I’ll take some close ups of those and post in a bit. A pic of the right side a bit closer up. I think in this pic there are at least 3 varieties of ferns. The ones on the top right pointing downwards which may be the same as those on the top left above. Then the long blade in the center running vertically. I think it is the only one of its kind represented on this plate. Then at the bottom running mostly horizontally. I have no clue as to the genus or even group of Medullosans. If I had to guess I’d say Neuropteris for all 3, but it’s a wild guess. Second piece is an Annularia of some kind I believe. You can se the long slender stems and then many long, slender leaves, which appear to have numerous veins running the length of the leaf. They are all cross crossing each other so it’s a bit chaotic to try to isolate one cluster. This is the back side. It has a couple stems running across it. There is more stuff in between layers on both pieces.
  7. Annularia Sphenophylloides

    From the album Plants

    Annularia Sphenophylloides from the Upper Carboniferous of Spain.
  8. Annularia Fern Plant Leaf Fossil.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Annularia Fern Plant Leaf Fossil Mazon Creek Formation, Francis Creek Shale, Braidwood, Illinois Pennsylvanian, Upper Carboniferous - 300 million years ago Annularia is a plant fossil belonging to the order Equisetales. Annularia is a form taxon. It is the name given to Calamites leaves. In fact the stems and the radiating structures of the leaf whorls is similar in the Calamites, an extinct genus of horsetails. These horsetails, belonging to the class of Sphenopsida, were arborescent and grew to a height of 32 feet (10 meters) in a tree-like form. Annularia leaves are arranged in whorls of between 8-13 leaves. Its shape is quite variable, being oval in Annularia sphenophylloides and between linear and lanceolate in Annularia radiata, but they are always flat and of varying lengths. Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: Calamitaceae Genus: Annularia
  9. Multiple Plants A.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Multiple Plant Fossil - Neuropteris, Pecopteris, Annularia Plant, other leaves. *Two-sided fossil Ferndale area of Johnstown, Pennsylvania, USA Pennsylvanian - 323.2 -298.9 million years ago Fossils on both sides of specimen. This fine specimen shows two leaflets of Calamites, a member of the Calamitales which belong to the Sphenophytes. Whorls of small leaflets are arranged concentrically around a thin stem and are called Annularia or Asterophyllites. Calamites itself is the name originally given to a stem section, but now applies to the entire plant. These were indicative of humid to wet habitats such as along rivers and lake shores. There appears to be small "branches" of calamites as well. Also on this piece, Neuropteris leaflets - they are usually blunt tipped and are attached by a single stem as opposed by the entire base, like Pecopteris. Also, Neuropteris has an overall heartshape. Fern leaves called Pecopteris grew abundantly in the coal swamps of the Carboniferous Period. These leaves dropped off of a 35 foot fern tree called “Psaronius“, one of the most common Paleozoic types. With its sparse and expansive branches, it resembled the modern day palm tree. It produced as many as 7000 spores on the underside of its leaves. Kingdom: Plantae
  10. Multiple Plants A.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Multiple Plant Fossil - Neuropteris, Pecopteris, Annularia Plant, other leaves. *Two-sided fossil Ferndale area of Johnstown, Pennsylvania, USA Pennsylvanian - 323.2 -298.9 million years ago Fossils on both sides of specimen. This fine specimen shows two leaflets of Calamites, a member of the Calamitales which belong to the Sphenophytes. Whorls of small leaflets are arranged concentrically around a thin stem and are called Annularia or Asterophyllites. Calamites itself is the name originally given to a stem section, but now applies to the entire plant. These were indicative of humid to wet habitats such as along rivers and lake shores. There appears to be small "branches" of calamites as well. Also on this piece, Neuropteris leaflets - they are usually blunt tipped and are attached by a single stem as opposed by the entire base, like Pecopteris. Also, Neuropteris has an overall heartshape. Fern leaves called Pecopteris grew abundantly in the coal swamps of the Carboniferous Period. These leaves dropped off of a 35 foot fern tree called “Psaronius“, one of the most common Paleozoic types. With its sparse and expansive branches, it resembled the modern day palm tree. It produced as many as 7000 spores on the underside of its leaves. Kingdom: Plantae
  11. Annularia

    From the album Mazon creek assortment

  12. Annularia with stem

    From the album Mazon creek assortment

  13. Annularia from PA.

    From the album Carboniferous from PA.

    Annularia sp. (string) Pennsylvanian Llewellyn Formation Carbondale, PA.
  14. Annularia whorl

    From the album Fowler Park - Vigo County, IN

    Form Species - Annularia stellata Shelburn Formation - Middle Pennsylvanian Chieftain Mine (Fowler Park) - Vigo County, IN Length: 35mm

    © Andrew Hoffman

  15. Partial Annularia Whorl

    From the album Fowler Park - Vigo County, IN

    Form Species - Annularia stellata Shelburn Formation - Middle Pennsylvanian Chieftain Mine (Fowler Park) - Vigo County, IN Length: 35mm

    © Andrew Hoffman

  16. Plant Id's

    This is Washington, PA dunkard group. I am starting with one and will be adding pics of other plant material to this same post. I have a couple.... #1 (the piece I found is a fairly large size... Let me know if additional pic would help)
  17. On our 4th visit to St. Clair, we set a goal to find some of those iconic "scale trees" we keep reading about - the now extinct lycopsid trees with the pock-marked "scaled" trunk and roots. The bark is pock marked with scars left by the leaf stalks and rootlets when they fall off. Did we find Scale Trees? Boy, did we ever! In addition to the samples we collected, Nancy and I found some incredibly cool samples embedded in large boulders, on the floor of the quarry, even on the trail - these are either fragile or positioned on boulders so they can't be extracted without shattering them, so they are there for any visitors to photograph and enjoy! We have had wildlife encounters on every visit - a 6 to 8 foot long black snake coiled near a water pool on the trail, fresh black bear tracks on the trail and scat (and a sighting by MZKLEEN the same day we were there), and on this trip a very large spider on the trail (see image). Fossils On Boulders! - The first "embedded" scale tree fossil (Stigmaria - root with rootlets clearly visible) was located on top of a huge boulder - Nancy discovered it and excitedly called me over to see it. It was bright yellow and very well defined as you can see from the picture. I had to climb on other boulders to reach this one, and took a photo with my rock hammer to show the size and scale (Image 1). It was extremely well preserved but it is exposed to the elements and the top of the boulder is very brittle so it is impossible to extract - if someone tries, it will almost certainly be destroyed. The second sample I discovered on a boulder at the other end of the quarry (Image 2 - you can see my boot on the boulder), and Nan discovered a third which I photographed to show the surrounding woods (Image 3). Finding these and just looking at them was thrilling, like touching history. We hope other collectors leave these as monuments for everyone to enjoy (and don't destroy them by trying to whack off some fragments). NEW QUESTION: Most of the fossil samples we see online show the scale tree bark with "leaf scars" but very seldom show the leaves attached. How do we know when the samples are roots and rootlets, or branches and leaves? Some of the Stigmaria we collected look like branches or small trunks with leaves but most people are telling me that these are all roots. Would appreciate clarification. What do the scale tree branches with leaves attached look like? We also saw extremely large trunks of Calamites and Lepidodendron beginning to show through the floor of the quarry near the boulders - this is very dramatic and as more shale wears away the erosion will reveal more of these really large trunks (this is up the slope directly above bottom area with all the large boulders, behind the large boulder covered with white crystals). It was really cool to find these white and golden yellow-tinged scale tree fossils in plain sight on large boulders - it really brought these trees to life, showing the leaf scars and rootlets that look like thorns spreading directly out from the trunk). Ironically, we didn't notice these scale trees on our first three visits - we did collect a few Calamites and Siggularia bark pieces then, but nothing special. Making Scale Trees (Lepidodendron) our TARGET forced us to focus on this and suddenly, we noticed that they were concentrated in certain areas that we never noticed before. Nancy found the last embedded scale tree (Stigmaria) fossil right on floor of the quarry trail - it was going to be destroyed by traffic so I checked it out and saw that it appeared to be loose and to my surprise, it popped out in two pieces - this is a cool piece because the pattern is white like most St. Clair ferns. The first photo (4a) shows the fossil embedded in the trail - it doesn't look like much and is actually hard to see (Nancy's keen eyes spotted it right away) - the second photo (4b) shows the recovered fossil. Collected Samples - We excavated some samples to bring home, and also found some nice samples that other collectors had discarded from fossil pits - you can see how interesting the patterns are. The roots with rootlets attached are not easy to find - as you can see, all of our samples have rootlets attached) - they make nice displays (Images 5, 6 and 7). The two fossils in Image 7 were revealed after segmenting a piece of shale. Annularia and Calamites - The last Image shows a single rock specimen that shows up in two different colors. It looks like two separate pieces but they are actually attached - the top part shows Annularia including a unique fossil that is a cross-section showing the stem in the center and the leaves radiating out like a star, and lots of smaller fronds. The bottom section shows pieces of the Calamites bark associated with Annularia. This makes for a nice display piece. We will display these fossils and also use them as illustrations for future articles and maybe a book - we also reinforced our strategy of setting specific goals for each trip, such as looking for a specific type of fossil species, or category, or even just agreeing to aim for a large size display fossil. This determines how we approach each site, where we explore, and even how we excavate. After 4 visits to St. Clair, we still find it to be new and exciting even as it gets more familiar on each trip - we're sure that you probably feel the same way about your favorite sites, especially if they are close to your home.
  18. Nancy and I revisited St. Clair (the large depression south of Burma Road) on Aug. 4. Only two other collecting teams were there - some young people who were excavating and found a lot of nice pieces, and a middle aged couple. The bear and her cub were not in sight - probably cooling off in a stream somewhere. It was 91 degrees and higher in the pit but afternoon clouds and a strong breeze made the weather comfortable. We continue to improve our excavation techniques, which are nothing fancy - just a rock hammer and chisels, but we work to extract larger (1 to 2 feet) sheets intact, which we fragment into large thin pieces. Techniques we've seen other people use include "mining" fossils in large pits, and carving out large round slabs. Some people are excavating under trees which is not cool - we hard that's what got the site closed to fossil collectors several years ago. This was a successful trip. We only spent half a day there, but met our goals. Last trip, I brought back a 2 ft. long section covered with orange and yellow fern fossils. This trip I was able to secure most of the other half of that section which is equally impressive (see photo below), plus we collected some white fossils in large (9 inches to 1 foot or longer) sections suitable for display on a shelf or on the wall. I worked to get some sections that are thin and light enough to frame but getting larger pieces intact is an art. My impression is that a lot of people seem to be using hammers and just hammering away at the substrate. This produces piles of tiny fragments and partial fossils which are discarded. This also explains why there are so many small pieces scattered everywhere. We sorted through the throwaways in the pits - if you look closely and know what to look for you can find some scarce specimens that include sections of bark from Calamites, Siggularia as well as bright white, orange and yellow ferns, groups of fossils that are a bit harder to find such as Annularia, etc. A general observation - there is a LOT of shale to excavate and explore, including many pits started by other collectors. Some look hard to extract but are easier than they look, but it requires a hammer and chisel and some careful cutting around the periphery to get out larger pieces - and often you have to remove some overburden that covers the fossil layers. Some pieces look smooth or round but some strategic hits with a chisel will segment them into small manageable sheets that sometimes come out larger than expected. It takes more time but you get more intact fossils. Also, many times I'll pull out a large sheet of shale thinking it looks totally empty or with only a few fossils visible, and will chisel it into increasingly smaller sheets with no results, then when I chisel open the very last layer, I'm rewarded with a really nice dense fossil mix. Nancy continues to use her keen eye to find unusual shapes and patterns - some of which are included in the Fossil ID section. She mentioned finding a "feathery" fern that she discarded because it looked too fuzzy - and later going through a fern book we saw that this was a feathery fern called Odontopteris. Which just goes to show that it pays to bring home stuff that looks interesting. I also found two very large neuropteris leaves - about 9 to 12 inches - but they didn't survive the segmenting process. We keep forgetting that many large fossil trees had very large leaves but they are hard to find the way most people work on smaller pieces. We don't want to move up to commercial-size excavations which defeats the purpose of this being a hobby, but we do want to keep working with our hammers and chisels to remove display size pieces. Didn't have much time to shoot photos but a few images are included here. Number 4 shows an Alethopteris and Annularia on the same fossil, which is a nice mix. The next images show "display pieces" from our trip, and a yellow fern. You can see more in our post in the Fossil ID section.
  19. These fossils are from our second visit to St. Clair (Aug 4) - several are fossils we haven't seen before so we appreciate help with IDs. Special thanks to Fossildude19 for the excellent starting points. Note: some of the images are out of order when you look at the photos below, because I am renaming and reposting them as they are being identified: 1 - Pecopteris Squamosa - This is small and the leaves are very close together and parallel - based on Lesquereux - amazing that some of the best fern identification sources are from 1879! 2 - Calamites Stem Fragment - A thin Calamites branch. 3 - Unidentified Plant - Nancy calls this a "flower" - of course it isn't, but it seems to be a different shape from others we collected at St. Clair. 4 - Alethopteris and Annularia - Included this because it makes for a nice artistic layout. 5a-5b - Asterophyllites equisetiformis - This interesting pattern appears over a large area several meters square in one part of the St. Clair site, and covers the surface of a very large flat boulder in one area of the site. (source: 6 - Siggilaria - This is our second Siggilaria trunk impression. Some of the trunk and branch fossils (Calamites, Siggilaria) are very exotic and interesting to collect. 7a-7c - Trigonocarpus (Seeds of the Alethopteris Fern) - The same shape appears in three different samples collected on our two trips and according to our friends on the site and reference materials, they appear to be Trigonocarpus seeds, which is very exciting because we keep reading about seed ferns but these are our first fossil seeds. One reference describes Trigonocarpus as the seeds of Alethopteris (which is the most common fern found at St. Clair) - other sources give these the nickname "fossil pecans" because of their physical resemblance. 8a-8b and 9a - Cyclopteris - Fan Shaped Leaves - Some of the reference books show round fan shaped versions of some common ferns but this looks like something separate so we're going with Cyclopteris. We'll try to find a separate, more articulated sample on a future trip. 10 - Unidentified Fern. 11 - Assume this is Sphenopteris. 12 - Assume this is Neuropteris - Where Neuropteris sometimes has rounded leaves (??) 13 - Sphenophyllum - Including just for fun. I'll update the names in this list as the IDs are confirmed. One of our goals continues to be, finding scarce specimens we haven't come across yet, as well as articulated fossils, designs and larger pieces for display. As you can see, we're already making great headway identifying these. Thanks to everyone who helped us ID our finds in the past 2 months, and especially for helping with these...we're really surprised how many different species there are at this single site, all very close together.
  20. This trip report complements MZKLEEN's report - we were there the same day except we mostly collected orange and yellow fern leaves. We did not see or hear the bear although we saw the signs the bear was in the area while we were there. This was a 90 minute drive for us so when we heard about the possibility it might be converted to a landfill, we made this a priority visit. St. Clair is an abandoned strip mine that looks like a broad saucer shaped depression with smooth shale covering the floor, surrounded all around by wooded hills. It's a fairly long walk through the woods to get there, but extremely scenic. Some of our photos show the layout and fossils scattered on the ground which is impressive and a little startling the first time you see this. Note: I added a few more pictures and here is some additional ID info: Most of the orange leaves are Alethopteris, some neuropteris and others here and there. The clover shaped leaves are Sphenophyllum (we also found Annularia and Calamites trunk fossils but most of these non-ferns are colored except for No. 5b below). The bark photo that I added is Sigillaria - a really interesting pattern, must have been impressive looking. The golden yellow image (just added) is Sphenopteris. There is also a reddish-orange sprig added to show that some of the specimens are almost red in color. The last image is a "stick" or stem found by Nan in a nicely articulated form. We had 3 goals for our trip: 1) collect a large specimen we could display on the wall or like a sculpture, 2) find some out of the ordinary fossils, and 3) see if there might be some insects along with the plant fossils. Goal 1: We explored places that didn't look like previous collectors had been there and excavated a very large rock that included a peek-a-boo glimpse of a layer covered with orange and yellow ferns. It took some effort to chisel away the layers of non-fossiliferous shale to free the fossil portion but when the shale fell away with the last chisel blow, wow, our eyes grew as big as saucers. The specimen turned out to be a large piece of shale 25 x 15 inches and several inches thick, covered with beautifully arranged, nicely articulated orange and yellow fossil leaves including many different types. Hiking back to the car was a challenge, given the awkward shape, jagged edges and weight of the sample but we accomplished our goal. A closeup of a small portion is included here and you can see how dense the fossils are! We also collected smaller pieces and one very nice one foot long sample covered with orange leaves. Goal 2: Nancy has a keen eye for out of the ordinary patterns and designs - she is expert at finding sphenophyllum, annularia, calamite bark and so on - we accomplished this goal also and learned a LOT about the plants and trees that exited during this period. Goal 3: No insects, but we still believe there must be some insects here, somewhere, since so many of the leaves are in perfect shape - not dried, curled or rotten - they look like they were buried in a mudslide or something, since there is almost no deterioration. This suggests there must have been some insects trapped somewhere. We plan to return soon to continue our exploration. There is a lot here to learn about and find. Hopefully we'll find more cool fossils (and no bears with cubs!). UPDATE: We revisited the site Aug. 4. You can read see our 2nd Visit trip report in a separate "orange fossil" post (no bears this time). We also posted some of our unusual finds in Fossil ID under "St. Clair 2nd Visit - Pennsylvanian Plant Fossils and Seeds" - many of the "unknowns" turned out to be fossils we did not see on our first visit. We pretty much doubled the number of species from this site, in our second visit, showing the diversity at this site. We think we accomplished a lot in 2 half-day visits.
  21. In June we were collecting neuropteris fern impressions from the shale spoils at the top of McIntyre Mountain (on our first fossil trip) and we discovered this plant fossil which is more "plant-like" - definitely not neuropteris and doesn't look much like a fern but has a distinctive pattern. UPDATE: The consensus is that this is Annularia, the leaves of the calamite tree. Probably Pennsylvanian.