Search the Community
Showing results for tags 'wheeler formation'.
-
Hello everyone, Here I have a peculiar trilobite specimen that I discovered cracking shale from the Wheeler Formation. It comes from the House Range in Millard County, Utah, and I know it's mid Cambrian. Thanks!
- 3 replies
-
- trilobite id
- wheeler formation
-
(and 1 more)
Tagged with:
-
From the album: My collection in progress
Itagnostus interstrictus White 1874 Location: Wheeler Formation, Utah, USA Age: 507 Mya (Wuliuan, Middle Cambrian) Measurements: 5x5x4,5 cm (matrix), 6x3 mm(trilobite) Kingdom: Animalia Phylum: Arthropoda Subphylum: Trilobitomorpha Class: Trilobita Order: Agnostida Suborder: Agnostina Family: Peronopsidae-
- trilobite
- wheeler formation
- (and 15 more)
-
From the album: My collection in progress
Elrathia kingii Meek 1870 Location: Wheeler Formation, Utah, USA Age: 507 Mya (Wuliuan, Middle Cambrian) Measurements: 3x2 cm Kingdom: Animalia Phylum: Arthropoda Subphylum: Trilobitomorpha Class: Trilobita Order: Ptychopariida Suborder: Ptychopariina Family: Alokistocaridae-
- trilobite
- wheeler formation
- (and 13 more)
-
Not just teeth and shells: my fossil collection also includes trilobites, the real protagonists of the Palaeozoic era. The first is a beautiful specimen of Morocops ovatus. Detail of the cephalon area:
-
- 4 replies
-
- utah
- wheeler formation
-
(and 1 more)
Tagged with:
-
Hello, everyone! Just got a new, greatly improved setup for photography, and wanted to share some of what I suspect are sponges from the Wheeler Formation. I thought a few might be Gogia (an eocrinoid), but I don't think so. I have many such specimens, but these appear to be the most evident. The first couple are the positive and negative of the same specimen. For scale, they are 8mm to 1cmm in size. All of the other pictures of other specimens are the same size. Enjoy! Though trilobites are spectacular, there is much more to the Wheeler Formation than trilobites, as I shall show you in the next few weeks, maybe months... Debra A. B. C. D. E. F. G. H. I. J. K. L. M. N. O. P. Q. R. S. T. U. V. W. X. Y.
- 18 replies
-
- 1
-
- new digital microscope and laptop
- wheeler formation
- (and 2 more)
-
Here are images of the 6 honeycomb pattern patches found in my Wheeler Formation collection. First image: 1 mm long Second image: 1mm long Third image: 1.5 mm long One image missing - couldn't get to focus. Fourth and Fifth images: 2.5 mm long. These are facing images of each other - original fossilized and impression - same specimen. I tried my very best, but images are still a little fuzzy, despite higher magnification.
- 30 replies
-
- wheeler formation
- utah
-
(and 1 more)
Tagged with:
-
Is this tiny trilobite from the U-Dig Quarry near Delta Utah a Brachyaspidion microps or is it something else? I realize that the pygidium is covered but I don't want to expose any more of the trilobite because I know that it would pop off the shale. Thanks.
- 6 replies
-
- trilobite
- wheeler formation
-
(and 1 more)
Tagged with:
-
I just received a new shipment of matrix/prep material from the Wheeler Formation of Utah this afternoon. What should be looking at me from within the box is THIS! It is huge, about 3 inches wide by 5 inches long, very smooth and flat, with a well-defined margin to it. I don't yet know if I have the other side to it, yet. First, I thought it might be the remains of a jelly, but I don't see any structures within, like concentric rings or radiating lines. Then, I thought maybe it is a cephalon shield or carapace of a very large phyllocarid, like Branchiocaris. I am still feverishly researching every type of Phyllocarid it might be. There is only a very faint area of changing width of slightly darker material, wrapping around the inside of the circumference of its margin/edge. Did I finally get lucky?
- 6 replies
-
- wheeler formation
- middle cambrian
- (and 2 more)
-
I have gone through 200 pounds of Wheeler Formation and found only 5 of these (2 are the original, and the impression of one specimen). I must have missed the impressions or originals of the others. They are difficult to spot. They are honeycomb structures, almost microscopic patches, just sitting on top of, but firmly attached to, matrix. These patches are not any bigger than 3mm at their longest dimension. Only one of them is that big, and they are all roughly circular or oval in shape, no boundaries, no distinct edges. The others range in size from 1mm, to 1.5mm, to 2.5mm in length. The first photo: 10x eyepiece, 4/0.10 body. Second photo: 10x eyepiece, 10/0.25 body. Both images are to the right of the pointer. At first, I thought these might be trilobite eye molts, or detachments due to decomposition, as their inner structures appear to be hexagonal, like the lenses in holochroal eyes. But maybe the density of these structures is too great for trilobite eyes. The only response I have had is from a member who thought these might be algal in nature. I have searched online for the past two days, narrowing it down to every type of dasycladean or protist I could find, but no image I have seen, from the pre-Cambrian through the entire Cambrian, has revealed anything that looks like these. They resemble encrusting bryozoans, but bryozoans didn't appear until the Ordovician. And, of course, that includes the Receptaculites or Fisherites, which have a passing resemblance to my specimens. Could any other creature from the Mid-Cambrian have possessed such a membraneous structure? Are any of you able to help me identify these?
- 11 replies
-
- wheeler formation
- mid-cambrian
-
(and 1 more)
Tagged with:
-
I found these (almost microscopic) honeycomb patches just laying on top of matrix. They are not attached to any trilobite, but what else could they be? Molted off? Sorry, I tried to take photos of them, but the detail is just not coming up. They are perfectly crystal clear when viewing under the stereoscope. I probably need a better camera. Will try later if/when I invest in something better. Has anyone else found tiny honeycomb patches in wheeler material, not directly associated with trilobites? I am finding both original fossilized and their impressions. I am looking to see if any other creature, such as a sponge from that time could have left such an attachment point.
- 17 replies
-
- wheeler formation
- utah
-
(and 1 more)
Tagged with:
-
Ok, several more photos. Now, these strips of oxidized material also have those very tiny filamentous fibers running along their length in the same direction as the strip, somewhat like the grain you see in wood. These may be degraded specimens, with only a few single fibers left. Some have many more fibers per square cm. Remember the oxidized hash (yellow/orange) I showed you previously which is just filled with these fibers? Maybe this particular stuff is actually a clump of algae, and not necessarily just tracks. Maybe the strips without fibers, but instead with other 3-dimensional patterns such as chevrons, braiding, or helical, could be one or the other. What if the helical pattern in a strand of algae could be the result of a worm boring through it and feeding on it, not just a worm boring through mud? I just obtained a fascinating book entitled "The Trace Fossil Record of Major Evolutionary Events", Topics in Geobiology 39, Volume 1, Precambrian and Paleozoic, edited by M. Gabriela Manzano and Luis A. Buatois. This book is filled with lots of fantastic photos of ichnofossils, especially cruziana, and suggestions to back up these findings. Some of these traces look so intricate and real as being the fossils themselves, one can be easily fooled! There are many problematica out there! Anyway, I recommend this, and other books and articles on Ichnology, as great reads, and very eye-opening. And not everything that has been published as being this or that, is absolutely set in stone (pardon my pun). Just like the scientific names of the life forms we find in our searches, they change constantly, the more we discover about them.
-
- mid-cambrian
- utah
-
(and 1 more)
Tagged with:
-
I just managed to find most of a frond of Margaretia dorus. Usually, it is represented by ribbon-like strands with tiny fibers running along its length, and frequently iron-oxidized. See photos of posts Ichnofossils, Algae, or Something Else, parts 1 and 2, under Fossil ID. This particular specimen (original fossilized and impression) is fairly three dimensional, and carbonized like the trilobites from this formation. Note the oval holes (pores?) running along its length! Margaretia dorus was originally thought to be an alcyonarian coral, then a green algae similar to Caulerpa. Today, some think it may be a hemichordate (with a worm-like creature residing within).
- 2 replies
-
- 2
-
- wheeler formation
- utah
-
(and 1 more)
Tagged with:
-
These are very tiny, delicate, fibrous/filamentous structures which are most commonly found within an iron-oxidized (? yellow/orange tinted) hash. They are probably part of something bigger, like maybe the fibrous structure of highly degraded algae. These are really hard to photograph with what I have. Again, 3ach circular shot 9mm+wide.
- 9 replies
-
- wheeler formation
- utah
-
(and 2 more)
Tagged with:
-
Hello, all! It will take me some time to set up, as I need to get more camera equipment for my stereoscope. I have some very substantial collections from the Wheeler and Florissant. I have been able to identify most of the critters from both (and I'm not finished yet). I have some great books, as well as a number of articles and links concerning these sites, but especially with regards to the Wheeler, I have found some rather puzzling remains which are enigmatic to me, but hopefully not so obscure to others. These are things which I have never seen described, illustrated, or photographed in the literature. Yes, I love trilobites, but I am keenly interested in other forms of life, and search for it as I look at EVERY single flake or piece of fossiliferous rock I have through my stereoscope. If sizeable enough, I will break each rock down to smaller pieces and start searching all over again. By all rights, I should be blind by now! I have alot of material to share with you, and I know you will be so helpful. Maybe I've even found something new and we can try to figure out what it is. Give me some time, and I'll Be Back with lots of interesting goodies.
- 1 reply
-
- 2
-
- wheeler formation
- florissant formation
-
(and 1 more)
Tagged with: