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Showing results for tags 'eyes'.
Found 14 results
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Trilobites were thought to be the only arthropods without median eyes. Turns out we just weren't looking hard enough: https://phys.org/news/2023-03-eyes-trilobites.amp The 3 additional eyes are marked by the white arrows in L below (only visible due to damage to the glabella which normally covers them):
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I found this amazing fossil and I've just been so interested in it! I think it might be an aquatic reptile of which I can't remember the name of but it was found in a watery rocky sewer area near where I reside. I noticed it looked like an animal and took it home. I've washed it and took these pictures and really would love it if someone could help me identify it. Thanks
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I’m currently working on a secret paleo-recreation project and was wondering whether Eurypterids (sea scorpions), specifically of the suborder Eurypterina, had 360 degrees of eyesight (like modern flies) due to compound eyes? If not, then could they move their eyes independently of one another? Or in other words, could sea scorpions move their eyes to look in two different directions at once?
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Hello all! This is my first post in the forum besides the introduction. I’m open to any and all interpretations on this piece. Did I just find a fish head in my backyard? There are tons of fossils (marine and palm) pouring out of the hills on my property. I’m so close to Chattanooga (10 minutes away), I imagine we would share similar geology but I’m unsure and try not to make assumptions. Yay for the scientific method! Found on the surface at the base of a shallow ravine among lots of fossil palm wood, shale outcroppings, and some volcanic(?) glass. Northern Walker co, Georgia, USA. Pictures are as follows... 1) “Right” side 2) “Left” side 3) “Top” 4) “Bottom” with “mouth” facing left 5) “Back” side with “top” at the top of photo 6) “Underside” with “mouth” at bottom left of photo 7) The location behind my driveway that keeps vomiting out fishy bits and petrified wood!
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Does anyone have, or can find, a picture of a fossil of the head horns of hybodus? Not the fin spines, but their "devil horns". I can't find any pictures of them that include visible horns...or at least that I can make out.
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https://theconversation.com/eye-opening-discovery-54-million-year-old-fossil-flies-yield-new-insight-into-the-evolution-of-sight-121867
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When I was cleaning up scraps of shale from my prep floor today, I saw parts of trilobites on some of the pieces of shale. The rock was collected recently and a complete Eldredgeops was removed. This shale is Middle Devonian in age and is very hard (almost like limestone). Trilobites in this layer are well preserved and 3D. The trilo parts I found were the cephalon of a small Pseudodechenella, pygidium of a Greenops, and the eye of a Dipleura. I spotted the Dipleura as just a small piece of exoskeleton in the side of the shale. I knew it was a piece of Dipleura shell, and I knew it was just a piece, but I was curious. The fossil was lying on a crack in the shale that I easily split open with a small chisel. When the eye popped out of the matrix I thought it was pretty funny and said to my girlfriend "well i'll be darned".
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How could this possibly happen??? How would they eyes be so dark while the rest is barely visible? And not just that, how are the eyes just the silhouettes, and not solid? It's not like they were made of anything different, or different in any other way. They couldn't be have been fossilized in different ways. is this possibly genuine??? I totally trust this persons other stuff, this one just seems so impossible to me.
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Hello, Anyone have any info on trilobites with eyes located on the hypostoma. I have an old textbook (1935!) that states "A few trilobites appear to have lacked eyes, and in some two small compound eyes are present on the ventral hypostoma." No other info is provided!!!!! I would like to read more about this. Thanks, Tim
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From the album: Finest Chengjiang
A wonder specimen with eyes preserved.-
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I am developing a thing for trilobite eyes ever since I read a book on the Cambrian Explosion called In the Blink of an Eye. I'm sure many of you have beautiful trilobite specimens with great eyes. I just bought this. It's like a pair of eyes sticking out of a rock, with a fat little trilobite attached. The trilobite is .9 inches wide. It is Eldredgeops rana rana from New York enrolled in matrix. Please show me your trilobite eyes!
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What in your opinion most likely caused the Cambrian explosion?
Hat posted a topic in General Fossil Discussion
I read a book called In the Blink of an Eye not long ago where the author claimed that the development of the eye is what led to the expansion of biodiversity. I've also heard the development of hard parts, changes in environment, and genetic causes. I honestly don't have a feeling on this one. Do you? -
Ok, as promised I will be posting some of my finds in Cyprus island, for ID, discussion etc but while in my "chamber of the million unidentified things" trying to get some decent photos and find similar online, I decided to take a small trip yesterday April 1st and BOOM I see this. (photos) is that a whole fish preserved like inside out and all? Or has mother nature pulled an April fool's day joke on me?? I wonder if I can see inside using x-ray.. I really want to find a doctor and try do that. Let hear it from the experts here 1st tho. I have cleaned the specimen and carefully removed what was surely aged dirt etc. I'm trying to get some more photos online, as I see here I am having a size limit issue. I case in the photos is not clear, at the "tail" part you can notice that inside there is this dark crystal like material, the one our ancestors used to start a fire and used it to make tools and weapons with. the two round "eyes" appear to have that material inside too.. which is confusing, coz tail and eyeballs are not exactly same material, then again maybe those are not eyeballs and it is upside down (because when u flip it, it resembles one sort of fish look, and when again, another one. a "fish palindrome" lol) or there is various stuff and materials inside, because outside you can see indication of dark almost black contents, and mostly those parts are mat and not glossy. Also in some places mainly on one side. u can see many brownish dots like freckles is it called?
