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Showing results for tags 'annularia'.
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Annularia stellata from North Attleboro, Massachusetts
Dino2033 posted a topic in Member Collections
Annularia Stellata from the Rhode Island formation (Mid-Late Pennsylvanian) of Massachusetts IMG_7186.jpg 1.7 MB- 5 replies
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From the album: Fossil Collection: DC Area and Beyond
Annularia Ambridge, PA Glenshaw Formation Carboniferous (Late Pennsylvanian) -
Annularia sphenophylloides (Zenker) Gutbier 1837
paleoflor posted a gallery image in Member Collections
From the album: Steinbruch Piesberg (Osnabrück, Germany)
© (c) T.K.T. Wolterbeek
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This is from the Anthracite coal region in Carbon County Penn. I thought it was Annularia but when I look at the pictures on the internet, it does not really seem to be a match.
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From the album: Mazon creek assortment
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From the album: Mazon creek assortment
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5 Mazon Creek specimens that need confirmation or species ID
Mark Kmiecik posted a topic in Fossil ID
Hoping for confirmation and/or species identification. Thanks in advance. Not sure of much anymore with all the recent changes. Annularia inflata? Alethopteris serlii? Calamites cistii? Pecopteris? Crenulopteris? species? Pecopteris? Crenulopteris? species?- 14 replies
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- pennsylvanian
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Looking to ID this fossil from Mazon Creek. I was wondering it is was roots of a horsetail/annularia.
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From the album: Llewellyn Formation Plants of Pennsylvania
Annularia stellata Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA-
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I received an e-mail from a good friend this week asking me if I wanted to go with him and two other of his friends collecting at a place that would fall in the area of Pit 4. Knowing that I always loved the stuff that I had collected in Pit 4 in the past, I decided to go with him to this spot, which was new for me. The weather was great this morning, around 57 degrees and it only sprinkled for about 5 minutes. Since this was a new site for me, I was not as discriminating as I might be in other locations. I only stayed for 2 hours since I have to head home, shower and then drive another hour into the city for my sons 38 Birthday. Once at home and prior to me leaving for the city in a few minutes, I decided to count the concretions. In the 2 hours I collected 239 of them, not including a couple that were open, shown in pics below. I found Annularia, Neuropteris, Calamities and Myalinella meeki open. Here are some scenery pics, another foliage filled place. Here are pics of concretions as I found them and the open pieces.
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- mazon creek
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From the album: Llewellyn Formation Plants of Pennsylvania
Annularia stellata Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA -
From the album: Llewellyn Formation Plants of Pennsylvania
Annularia stellata Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA -
From the album: Llewellyn Formation Plants of Pennsylvania
Annularia stellata Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA -
From the album: Llewellyn Formation Plants of Pennsylvania
Annularia stellata Late Pennsylvanian Llewellyn Formation Schuylkill Co., PA -
From the album: Steinbruch Piesberg (Osnabrück, Germany)
© T.K.T. Wolterbeek
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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".
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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
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From the album: Plants
Annularia Sphenophylloides from the Upper Carboniferous of Spain.- 3 comments
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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.
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Veggie-exchange: Plant fossils from Piesberg quarry (Germany)
paleoflor posted a topic in Member-to-Member Fossil Trades
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: -
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?
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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-
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- annularia fern plant leaf fossil mazon creek formation francis creek shale braidwood
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- 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
- 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 drag files here to attach
- or choose files... max total size 3.95mb
- pennsylvanian
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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-
- neuropteris
- pecopteris
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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-
- neuropteris
- pecopteris
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From the album: Mazon creek assortment