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Showing results for tags 'eyes'.
Found 13 results
Trilobites had 3 additional eyes
JBkansas posted a topic in Fossil NewsTrilobites 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):
Found this in Monmouth, Illinois. Help me identify it?
Jaymi Garrison posted a topic in Fossil IDI 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
Eurypterid Eye Movement?
Megalodoodle posted a topic in Questions & AnswersI’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?
Fish Heads in North Georgia?
ThisOldFossil posted a topic in Fossil IDHello 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, US
Any Hybodus head horn pics out there?
Still_human posted a topic in Questions & AnswersDoes 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.
New insight into evolution of ... sight
Kasia posted a topic in Fossil Newshttps://theconversation.com/eye-opening-discovery-54-million-year-old-fossil-flies-yield-new-insight-into-the-evolution-of-sight-121867
Well eye will be darned.
mikeymig posted a topic in General Fossil DiscussionWhen 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
MarcusFossils posted a gallery image in Members Gallery
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.
trilobite eyes on hypostoma
trilobite tim posted a topic in General Fossil DiscussionHello, 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
Hat posted a topic in Member CollectionsI 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!
What in your opinion most likely caused the Cambrian explosion?
Hat posted a topic in General Fossil DiscussionI 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?
A unique and amazing specimen or...?
pambosk posted a topic in Fossil IDOk, 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 w