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Showing results for tags 'arthropod'.
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From the album: Nautiloid’s phyllocarid collection
This is a nice 3D example of a Rhinocaris carapace, which was found by me on May 14 at a Middle Devonian site in Central NY© Owen Yonkin 2022
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From the album: Nautiloid’s phyllocarid collection
© Owen Yonkin 2022
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- hamilton group
- middle devonian
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From the album: Nautiloid’s phyllocarid collection
This is a great specimen of Rhinocaris columbina which I collected a couple summers ago. Both sides of the carapace are there as well as the majority of the telson, which is tucked around the underside of the rock.© Owen Yonkin 2022
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From the album: Nautiloid’s phyllocarid collection
© Owen Yonkin 2022
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- hamilton group
- devonian
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From the album: Nautiloid’s phyllocarid collection
This beautiful near-complete specimen was collected by me a couple summers ago at an exposure of the Middle Devonian hamilton group in Central NY.© Owen Yonkin 2022
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From the album: Nautiloid’s phyllocarid collection
This specimen is a partial valve and a partial telson. It was collected by me on May 14 at an exposure of the Middle Devonian Hamilton Group in Central NY.© Owen Yonkin 2022
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From the album: My Collection
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Dean Ruocco posted a gallery image in Members Gallery
From the album: Fiddlers Green Formation
A possible Naraoia. Langs Quarry, collected by Dean Ruocco. -
An article published today has identified evidence of mating claspers on trilobites from the Burgess Shale. The best analogy would be to current day horseshoe crabs. The significance the authors cited is that it shows sexual dimorphism (males and females of the same species look different) was already well developed in the Cambrian. Their conclusion was based on morphological analysis of the limbs under the 7th thoracic and 1st pygidial segments, which differ from the others and do not reflect feeding adaptations. The theory is that the only explanation is that they have been modified as clasp
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Leptomyrmex neotropicus (Dominican Amber)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight The piece containing these inclusions is absolutely loaded with different arthropods, but the most spectacular inclusions are those of a swarm of 11 extinct Leptomyrmex ants: there are 9 complete and 2 incomplete individuals, averaging 3.5mm in body length. In a lighthearted interpretation, it appears as though the duo i© Kaegen Lau
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I wish I could say that I found this one but was able to talk a friend of mine into parting with it. This is an almost complete pygidium of the elusive giant lichid Terataspis. It was found in a remote area of Northern Ontario. The pygidium measures approximately 10 centimeters across.
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COMPLETED, THANKS!: Request for a missing plate from a classic trilobite paper
pefty posted a topic in Documents
Hi, I'm looking for help locating a plate that seems to be inexplicably missing from the online version of a classic trilobite paper. The plate I'm seeking is PLATE XXVI (26) from Lehi Hintze's 1952 paper Lower Ordovician trilobites from western Utah and eastern Nevada. Utah Geological and Mineralogical Survey Bulletin 48: 249 p. The only online version I've found, which seems to be missing plate XXVI, is here: https://ugspub.nr.utah.gov/publications/bulletins/b-48.pdf If anyone has access to a paper copy and can post a scan of PLATE XXVI (26) here -
Hi, I'm a newbie to this forum and would really appreciate some help identifying a fossil that my son found last week in mid-wales, Upper Gilwern Hill Quarry, Powys. It was found in the same strata of slate with trilobites that the quarry is famous for. multiple photos attached. Many thanks in advance for anyone who can help identify it.
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Looking for help with this Early Ordovician (Floian) trilobite from the Powell Dolostone of Arkansas, USA. The specimens (GRAY FIGURE below) were identified by Taylor (1968) as cf. Lannacus nericiensis Wiman, but that species (now a species of Megalaspides) doesn't seem like a great match, as the author notes in the paper. In fact, I'm not sure that proper Megalaspides even lived in North America. Last week, an Arkansan found another asaphide specimen (MAIZE AND BLUE FIGURE below) in these same rocks, which may or may not be the same species as the specimens described by Taylor.
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Ok, i know that barnacles are arthropods. But, i can understand the anatomy. It is a shell that the animal make for "home" and the animal is free from this, or the shell is part of the body? Can an adult barnacle moved?
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Two very rare Ordovician fossils from the Fezouata Formation of Morocco. Any ideas?
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I was given this Eurypterid fossil a while back and I was looking to see if anyone had any ideas towards a species, i’ve got no idea where it came from other than somewhere in the New England/Canada area. Someone has told me it looks like an Adelophthalamus but id like some more opinions. Thank you
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Hi, it's time for the next 3d-printed animal from the Cambrian: Kylinxia zhangi. It was described only about a month ago (https://www.nature.com/articles/s41586-020-2883-7) and features Anomalocaris-like frontal appendages and Opabinia-like eyes on an early arthropod body. The model in 1:1 scale is only about 6cm long. The legs, while considerable thickened to allow printing, are still only about 1/3rd of a millimetre in diameter. It was printed on an Anycubic Photon Mono X at a resolution of 50µm from transparent resin and painted using an airbrush with highly thinned paint, such
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Hey everyone, I just got back from an amazing trip to Utah and Nevada collecting a host of trilobites. I am going to try and post some photos of that trip in the next day or so. I never seem to be able to find the time anymore! This find was pretty much the trip maker for non trilobite finds. I found this soft tissue arthropod in the house range in rocks known to have Burgess Shale fauna. So far this doesn’t seem to line up with anything I’ve seen in the Burgess. I’ve had 2 suggestions on an identification. Canadaspis perfecta is the best guess so far however there are g
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From the album: Delaware Fossils
Eutrephoceras sp. Cretaceous C and D Canal Delaware City, Delaware Mt Laurel Fm.- 1 comment
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The spiny millipede which is part of the Braidwood Biota was found in an ironstone concretion.
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From the album: Nautiloid’s Eurypterids and other Silurian fossils
Assorted Eurypterus remipes and Pterygotus sp. parts Upper Silurian Bertie Group Fiddlers Green Formation Phelps member collected 8/22/20-
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From the album: Nautiloid’s Eurypterids and other Silurian fossils
Eurypterus remipes partial cephalon Upper Silurian Bertie Group Fiddlers Green Formation Phelps Member Herkimer County, New York Collected 8/22/20© Owen Yonkin 2020
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Hi Forum members, Yesterday I went to a spot in Herkimer County in search of Eurypterids! This spot exposed the Fiddlers Green Formation of the Upper Silurian Bertie Group. I had never found a Eurypterid so I was excited to go, and I had heard this was a productive spot. I got there and the first rock I looked at had an exploded eurypterid on it! There were eurypterid bits and pieces all over the place. Eurypterids seemed to be much more abundant at this spot than I thought they would be! I only got to stay there for a half an hour but managed to trac
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From the album: Phyllocarids
Rhinocaris columbina Middle Devonian Hamilton Group Moscow Formation Windom Shale Deep Spring Road Lebanon, New York Collected 7/18/20- 2 comments
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