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Showing results for tags 'algae'.
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Fossil algae, dating from 541 million years ago, offer new insights into the plant kingdom's roots
GreatHoatzin posted a topic in Fossil News
https://www.sciencedaily.com/releases/2022/09/220920211225.htm- 1 reply
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- micropaleontology
- fossil news
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Stromatolites are potentially present in every geologic period. Show any if you got 'em. The goal here is to represent every period, and every stage/epoch if possible, including subdivisions/periods of the Precambrian. These can be posted in no particular order. Any and all are welcome to post multiple examples from any period/epoch. I'll start with a specimen from the Pennsylvanian: Sniabar Limestone, Kasimovian/Missourian Stage, Pennsylvanian Kansas City, Missouri, USA The front side has been p
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- algae
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A partial decalcified specimen from the Upper Ordovician. Scale bar: 5mm The image on the left shows 2 views of one mould, the image on the right shows 2 views of the other mould. Into the 2 moulds (expecially in the left one) you can see that the specimen has, almost sunk on its surface, a piece of ramose bryozoan (decalcified) and an echinoderm columnal (decalcified). We don't know if it could be some sort of sponge or calcareous algae, or other...
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Found in the stone steps at estabrooke park quarried from the Devonian Milwaukee formation.
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Found while splitting fossiliferous rock
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For nearly twenty years, I've collected some strange fossils from a unique Pennsylvanian deposit in northeast Kansas. I've been pondering them to this day, and I'm still drawing a blank. I first found this slab: The bold segments caught my eye. I then noticed that they have a branching habit. I assumed they were sponges, but then I found this: This one is also segmented and bifurcated, but it forms a nearly continuous surface. Perplexed, I looked at them up close. They seem to form thin (0.5 mm), leaf-like sheets (i.e. t
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Hardly anybody ever talks about the Cambrian fossils of the southern midcontinent (USA). They're super-underappreciated. Show us what you've got! Here's one to start us off: Thorax and pygidium of a trilobite, possibly Orygmaspis, typically referred to as "Orygmaspis cf. Orygmaspis llanoensis" but probably a different species altogether. Note the two pairs of macropleural spines marking the final thoracic segments. Davis Formation (late Cambrian: Furongian), south side of Highway 8, St. François County, Missouri.- 8 replies
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- reagan sandstone
- honey creek formation
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There have been other microbes freed from ice or salt before, but if these are indeed alive they shatter all records for oldest living things by about 600 million years!!! https://www.sciencealert.com/830-million-year-old-microorganisms-found-trapped-in-australian-rock/amp
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PBFossilAgae05.tif Pittsburg Bluff Formation (near Mist, Oregon) Late Eocene or early Miocene. I am finding a lot these tubular items in the matrix. Still waiting from the adapter for my good camera, this is from a 5 mpx camera. Since it is a marine environment, perhaps this is some type of Algae? On my 27" screen the yellow ring part has fuzzy hairs protruding. This was taken with a 5 mpx camera and a 10X objective.
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Illusory erect spines(?) on a Kimmswick receptaculitid
pefty posted a topic in General Fossil Discussion
UPDATE: These seem to just be weirdly incomplete cross-sections through ordinary cylindrical meroms. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This weekend in the Kimmswick Limestone in eastern Missouri (Pike County) I saw plenty of receptaculitid algae, mostly of genus Fisherites. But one cross-section has a feature I've never seen before: a fringe of what look like erect spines on the external surface. Can someone point me to a reference for understanding this feature functionally and/or taxonomically? I've looked in the usual places but I d -
Location: n-e Italy. Probably Permian or Carboniferous. It's a fossil? Algae?
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The fossil was found near the Mukhavets River, Belarus, Brest. Length ~ 6-7cm (~ 2.5 inch) whole piece. If I registered here, I will be impudent: you can recommend a book (100 -200 pages), an introductory course in fossils.
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I've got this big hash plate that I collected last year and I somehow didn't notice this thing poking out until now. It looks like an algae to me. Found in SW Wisconsin in the platteville formation.
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Hello everyone, I have posted about this fossil before but I was not able to get it Identified. I have decided to create a separate topic for it because I am quite interested in if this is really what I initially thought it was. The fossil is from Eifel (Middle Devonian) and on one side there are a bunch of Crinoids columnals, but upon flipping it over I noticed this darkened branching structure on the rock, to me it looked very reminiscent of certain algae, although I have never seen anything like that from the Devonian so it's probably something else. So my question is:
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Hello Dear Friends! This is my first topic on this forum. Hooray! I work in museum and sometimes go on the Kaliningrad beach of Baltic sea and search some fossils. I'am not paleontologist and i need help to definition of them. THe last time i found some algae but i'am not sure. Place was in a few meters from cliff on beach. p.s. can i add my other find in this topic or should create new?
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a friend and I traveled to the florida barge canal on Saturday. it is a 4 hour trip for us. besides the usual finds, my friend found this, and we were wondering if it looks like algae to anyone else, besides us. lol. thanks. ( second photo is of my best finds of the day, still needing a final cleanup....also found a 4" sand dollar that broke getting it out of the bank....and a 5" thick, 6' long section of broken sand dollar edges all in hardened stone...ugh. )
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Hello everyone, I found the below ichthyosaur vertebra on the beach at Wimereux two weeks ago. It had obviously been lying there for some time, as it was covered in green algae and barnacles. Based on the advise of various friends and the fact this rock seems to hard and massive to work through using just my Dremel, I'll be leaving the fossil in its matrix. However, I do want to clean it up from the algae and barnacles. As such, I used a 1:2 dilution of 14° household cleaning vinegar and a couple of sturdy brushes to remove most of the algae (dipping the br
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I have a few specimens that I recently collected from a river. The best are covered in dried algae that needs removal. Does anyone know how to remove the algae?
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Anyone seen this species or similar? Found in Pennsylvanian spoil piles of central Illinois (near Peoria). Is it part of some kind of alga? Not my find and not my specimen, so these photos are basically what we have to go on. More broadly, can anyone here recommend a Treatise-style taxonomic book detailing known algal heads / macroalgae in the fossil record? Thanks.
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I recently aquired this Glossopteris. It has a green coating which looks like algae. How do I remove this without damaging the fossil ?
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Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com
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- biostratigraphy
- cambrian
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Hi guys, I would like to know if you can recognize this algae fossil. It is Cenomanian in age and associated with microbialites. My first guess is cyanobacteria. Thanks!
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While hiking through a desert area just southwest of Tucson, AZ. I found these interesting layered rocks. Over the course of an afternoon I came across a couple more spots where these types rocks were strewn over relatively large areas. Many of the pieces would fit inside a square inch or the palm of your hand, while many others were a few feet long/wide. I showed these to a local geologist and he called them stromatolithic Paleozoic limestone – evidence the area was once covered by water and these represent the layers of algae, probably in the form of algal matting that existed there, dat
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I would highly appreciate your opinion about this formation . Marine , Pliocene or Pleistocene age, Greece . Could be algae , bryozoa ?
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Hello all. I picked up this fossil in a Permian formation on the Potash Road, unpaved section, SW of Moab. I think I can eliminate what it is not but am unsure of what it is. I do not think it is some kind of sponge. It does seem to have the structure of coral. It does not it seem to be like any bryozoan clusters I’ve seen. If that is correct, this begins to narrow it to bacterial. The fossil material is very thin overlaying a hard red clay base, so I don’t think it is a stromatolite. It does not come in layers, but seems to be just one layer. The piece is 4cm x 4cm x 4cm. The fingers in the t
