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Showing results for tags 'ordovician'.
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- ohio
- ordovician
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Well I finally had the opportunity to head out to Millard Co. with my Geology professor, the esteemed Forest Gahn. He is one of the worlds leading experts in Echinoderms and he specializes in Crinoids. The guy goes diving a lot to study Echinoderms in their natural habitat and he's managed to keep some Crinoids thriving in a tank at BYU in Rexburg, Idaho. Here's some pictures of the trip to some special Geology and Paleontology sights in south western Utah. I had a blast. Students sitting on the edge of Fossil Mountain, one of the richest Ordovician deposits in the world learning about it's geology from Forest Gahn. The major fossiliferous formations are the Juab and Kanosh Shale formations. In a remnant of the last ice age lake, Lake Bonneville forest scopes up a handful of algae and cyanobacteria rich mud along with Playa (dried up lake). This is an extinct marine animal known as a Graptolite discovered at a nearby Ordovician road cut in Millard Co. UT. No trip is complete without trilobites. Here's a large Asaphiscus wheeleri molt from U-Dig near Delta, UT. This Native American arrowhead was recovered in Millard CO Utah during one of our hikes. My professor claims its origins may be from the Shoshone Tribe. Forest teaches students about the Cambrian marine fauna at U-Dig near Delta, UT. Forest shows students the fossilized remains of a Stromatolite (just above his knee) colony alongside the Lake Bonneville Playa (dried lake) near Notch Peak UT. Here is the view of Fossil Mountain in Millard CO, UT at sunrise. At dusk on the first night we camped at the dunes of Little Sahara which are composed of ancient sand deposits from the Sevier River dumping into Lake Bonneville. Perhaps one of my favorite parts of the trip was being let into the collections archive room at the BYU museum of paleontology in Provo, UT. A lot of the dinosaurs in the collections here are from the Saints and Sinners Quarry in Colorado. Lots of neat therapods including a near complete Allosaurus.
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Excited to be here. Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Been lurking here for a couple of years, learning everything I can. Finally decided to join. Always loved fossils, but never had access to many. That changed a couple of years ago, when I unknowingly purchased some very unique land. The age of fossils I find on my property range from Ordovician era to more “modern” times. Have found Chain Coral, Favosites and Horn Coral previously. Plus a few other marine, plant, bone and tooth specimens. There are many moraines in the area, some smaller ones are on the land I have. It is located on the South Western edge of the Green Bay Lobe of the Glacier, during the furthest advance, about 18,000 years ago. Some of the fossils are attributed to when the glacier advanced through the Niagara Escarpment. As the glacier melted, escarpment debris was deposited. The Niagara Escarpment is located from Wisconsin, into Canada and includes Niagara Falls in New York. Yes, some here may know this, but others maybe not. Many of the fossils/rocks on my land are the same as all others near the other Niagara Escarpment locations. Glacial Lake Oshkosh also covered the land. Glacial Lake Wisconsin was located on the very edge of the land, when it and Lake Oshkosh were one entity. Lake Wisconsin contained volcanic debris from the Miladore Volcanic Range, which is located less than an hour from where I live. 6 months after purchasing the land, I rented the 15 acres of fields. They were plowed for the first time in modern history. Had been used for hay prior. In the spring/summer, I spend hours walking the fields. Due to limited vision, I often do not know what I have until I wash it and photograph. Rely mostly on shape, color and any other distinctive characteristics I can make out. My first find was an accident, while riding ATV along edge of fields to pick berries. Contacted a local relative, who referred me to the local college Geology Department. The Department Chair., put me in contact with the local Natural History Museum Director and the local fossil/artifact/rock expert. They have provided the initial ID’s for some of my finds. Fields will be plowed again in the Spring and I am excited to see what else surfaces. Hoping to learn everything I can here. Appreciate the knowledge of members. Will try not to use regional names for my finds I post, but list as unknown (common name) until someone can provide the scientific name. In the process of cataloging and storing all finds with names. Also have some I think are worth further processing, so am excited to learn how to do that. Would love to connect with others in the Upper Midwest USA. Sorry so long, but wanted to share Thank you.
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Two weeks ago while I was at the ESCONI Fossil / Mineral Show, I bid on and won a great little piece of rock that was identified as Isorthoceras sociale Cephalopods from the Upper Ordovician - Maquoketa Formation of Graf, Iowa. I did a little research before heading out to the MAPS Show yesterday and decided on my way back home, I would take a 1 1/2 hour detour to Graf and see if I could find this small road cut. I have to admit that this approximately 300 ft long road cut contains what must be some type of mass Nautiloid death bed. There are so many of them that you will for sure go home with your fair share if you ever get a chance to visit the very out of the way place that is hidden among farmland. I will give a couple warnings for this location- there is no shoulder to park on and you have to drive on the grass/dirt area that is muddy. Secondly, people have under cut these Nautiloid beds and there are TONS of rocks above your head in sections of this road cut; It is not a place for young kids nor a place for a Risk Taker. Besides the Isorthoceras sociale that I found, I also found a couple nice Gastropods. This is a place that I will not visit again since I did collect enough loose pieces and blocks that I found around the area. Here are some pics of the area as well as some of my finds:
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This past Saturday was cold and windy in middle Tennessee, with occasional sleet and snow showers. I decided to do something other than hunt fossils due to the weather. However, by late in the day, the wind had died down and skies were clearing, so I decided to stop at a road cut on the way home. This cut exposes about 25 ft of the lower Lebanon Limestone, Ordovician. The Lebanon is rich in fossils, often with excellent detail, but the thin limestone layers can be extremely hard. This usually results in the fossils weathering faster than the rock, so the best way to find something nice, is if it's inverted. As always, I'm looking for trilobites, and the Lebanon has a diverse assemblage, but finding complete, articulated specimens is very rare. After several years of sporadic hunting, I have never found a single complete trilobite in the Lebanon, but I have seen a few, so they do exist. The sun was was getting low, and the light was not great, but I had at least 30 minutes to check out the cut. I had checked this same cut a few years ago, but only briefly, late in the day, after hunting other cuts nearby, so my tired eyes had not seen much. I recently learned that some rare trilobites had been found at this same cut, so I really wanted to give it a better look. Just 10 minutes into my hunt, and only 50 ft from the car, I glanced up at the top of the talus pile and immediately spotted this Gabriceraurus! I appears to be complete, although the pygidium is not visible.
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- ordovician
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We temporarily melted our snow enough for me to get out last week for a short fossil hunt. But yesterday, 9" of snow put further hunts on hold. I had to stick with south facing slopes due to the frost in the ground. My goal was to look for a mixed bag of cephalopods, gastropods, and trilobites. Success was had with one swing of the hammer!!!! Two cephalopods, two trilobites, six gastropods and one brachiopod all in one rock!
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From the album: Trilobites
Paraceraurus macrophthalmus Age: 463 Ma, Middle Ordovician Locality: Vilpovitsy quarry, St.Petersburg region, Russia Trilobite (cm): 9.6 x 6.0 x 1.0 Stone (cm): 17.5 x 12.5 x 6.5© Shuo Wang
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From the album: Trilobites
Paraceraurus macrophthalmus Age: 463 Ma, Middle Ordovician Locality: Vilpovitsy quarry, St.Petersburg region, Russia Trilobite (cm): 9.6 x 6.0 x 1.0 Stone (cm): 17.5 x 12.5 x 6.5© Shuo Wang
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Paraceraurus macrophthalmus. Age: 463 Ma, Middle Ordovician Locality: Vilpovitsy quarry, St. Petersburg region, Russia Trilobite (cm): 9.6 x 6.0 x 1.0 Stone (cm): 17.5 x 12.5 x 6.5
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Dear TFF members, As some of you may already know, I have been working on my science fair project concerning the Trilobite Pseudogygites latimarginatus for several months. This science fair project has been awarded a position in the Ottawa Regional Science Fair held at Carleton University this week. Your help has been instrumental in my success, and my appreciation cannot be expressed in words. As one way of thanking you all, I am inviting anyone on the forum who will be in or near Ottawa at the time to attend the fair. My project will be open to the public this Friday, April 6th, from 2:00 pm - 4:00 pm, and again this Saturday, April 7th, from 9:00 am - 11:30 am. It is titled, "The Impact of Environment on the Biodiversity of Pseudogygites latimarginatus." My project's number is 1101. I will also have some of my most prized fossils on display, as well as some edible specimens, for the Trilobite enthusiasts! I am not asking for anyone to go out of their way to see my project, this is just a simple invitation. Everyone is welcome.
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- billings formation
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The full name is Asaphus expansus gracilis
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From the album: Billings Shale
A P. latimarginatus pygidium from the Billings formation near St. Laurent, Ottawa. -
From the album: Billings Shale
A partially pyritized P. latimarginatus pygidium from the Billings formation near St. Laurent, Ottawa. -
Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Reminds me of Ordovician Halysites Coral-Chain Coral, but with a lot of wear. In some places, the chain is partially visible. When a light is held to the cavity edges shown on the first two photos, the walls are very translucent. Medium amber color. I saw the more solid edge and picked it up. Was very pleased when I turned it over, even though it was full of dirt. Like most of the fossils, I find, this one has received a lot of trauma. Possibly a victim of glacier which went through the Niagara Escarpment about 25,000 years ago. Most of my finds have partial or full crystal replacement for the coral stems. Size: 11 cm long by 10 cm wide by 9 cm thick at maximum points. All comments appreciated. Thank you. lace coral 1a lace coral 1c lace coral 2 lace coral 2 ud 2d
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Here's a mystery fossil from the Lower Ordovician Fillmore Formation of Utah. My initial impression is it must be a graptolite, but I've never seen any graptolites from this formation with this structure and I can't find any graptolites in my research that look like this. The other thing that's throwing me off is the "rod" running down the middle is preserved actually fairly 3d where every graptolite I've seen is preserved as just a flat film. For reference the specimen is about 2" tall including the middle section still covered in matrix. Any ideas?
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Well articulated with very minor restoration. Full name: Asaphus expansus robustus
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Hello, Is the Caid El Rami Placoparia's species (like the one at attachment) already known? Thanks in advance for your opinions.
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I chose to draw another rare Trilobite from New York. Hypodicranotus striatulus is an "alien" looking bug with streamlined features. It is Ordovician in age and hails from the Rust-Walcott quarry in mid- state New York. The picture of the real fossil is from the Harvard Museum of Comparative Zoology.
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Additional images show detail of holochroal eyes, pleurae, and pygidium. Specimen is fully prone.
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I found this in an old quarry at the foot of the Old Man of Coniston, Cumbria, England about 30 years back. It's from the Ashgill Shales, so is very uppermost Hirnantian, Upper Ordovician. It was a dome shape but broke during extraction,to reveal a smaller dome within the dome and so on, but is built up of layers and layers though the 'tubes' running through it also continue upwards and outwards from the base. Is it Fisherites ? It's about 3.5 cm in diameter but was a little bit bigger. Thanks for any help. Top : Side : Side and base : Base :
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Location: SE Portage County, Central Wisconsin, USA. Geology: South Western advance of Green Bay Glacial Lobe. Former Glacial Lake Oshkosh. Niagara Escarpment Debris. My land. Ordovician onward. Trying to learn, but am confused. I tentatively identified the below specimen as a Honeycomb coral, based on info from the below and input from local “experts”. None are Paleontologists, but one is a Natural History Museum Director. Begin quote: Favositid tabulates: Honeycomb corals The favositid corals are quite common. They usually formed large colonies. The corallite is prismatic in shape, resembling honeycombs. Favositids have mural pores, tiny holes in the wall of the skeleton, which connect different corallites. These pores are distributed in characteristic patterns and numbers, which are useful for distinguishing the various types of favositids. Favositids lived from the Ordovician to the Permian, at which time they became extinct. They are most abundant in middle Silurian to lower Devonian rock. Favosites is the most common fossil coral in Wisconsin. https://wgnhs.uwex.edu/wisconsin-geology/fossils-of-wisconsin/coral-gallery/corals/ Wisconsin Geological and Natural History Survey, UW Extension The confusing part is that some surfaces of this specimen show no pattern or regular form. Just like most of my finds. Are there any clues to indicate a rock of this structure may be a coral? Other than cutting it open? I have about 50 like this, but only two others show the typical pattern. The rest just have the “circles” on all sides. All are basically the same composition of material, but colors vary. All have inclusions of crystals. My vision is limited, so I only know what I have found after I wash it and look under a lighted magnifier with a loop. Photographing helps a lot as well. I just go on shape and colors when picking up. Then use a small hand held magnifying glass to examine. Sometimes wash off with a little water first. My son in law, who has (almost) a geology minor from local University, is amazed at what the glaciers “dumped” on my land. Note that a large part of the classes were related to local fossils, due to the abundance of them. Please let me know if my ID is correct, and any pointers for identifying specimens which do not show the structure, only the “circles” or “cavities”. Thank you. 1 2 3 4 5 6 7
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Stopped by a road cut this past Sunday to pick up some hash plates I found the previous weekend, but had to leave behind. The cut exposes a large section of the upper Carter's limestone and the Curdsville limestone member of the Hermitage formation, middle Ordovician. This is not far from where I found the nice 3D Isotelus a few weeks back. Within 5 minutes after I arrived, I looked down and spotted this huge enrolled, but very weathered Isotelus. Most of the lower portions were missing or very damaged. It is 5.5 inches (14 cm) wide, so if stretched out prone, it would have been 8-9 inches! While it's not in very good condition, it still shows the potential of this strata in the area. That's a big honking trilobite!
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Attention TFF members! I'm posting this to bring you an extremely important announcement! (For Me) For the past few months, I have been posting topics regarding Ottawa fossils and the Trilobite Pseudogygites latimarginatus. I have been doing this for research and information for my grade 8 science fair project. This experiment involved the relationship between Ordovician sedimentation and the average lengths of Pseudogygites latimarginatus. The title was, "The impact of Environment on the Biodiversity of Pseudogygites latimarginatus." Though, other possible titles included, "Another one Trilo-Bites the Dust," "Trilo-Bite Sized Science," "Don't Trilo-Bite the Hand that Feeds You," and "Trilo-Bite Me!" Last week, I fully assembled the presentation board and all other related displays. I presented my project to three judges (including professors and students from Carleton University) in addition to many other people who passed by. The following day, my school held an assembly which would announce the top 5 winners of the grade 8 science fair. After much delay and suspense on my part, it was announced that I had won first place in my grade! This means that I will get the opportunity to compete in the Ontario regional science fair this April! It turns out that one of the reasons why I won first place was because the teachers who were doing research on my project's nature (name pronunciation) stumbled upon my many posts on this website! I will continue to make posts on the forum. I think that I should give acknowledgement to all the TFF members who helped me achieve my goal, or contributed in any way! This includes all the people who helped identify my mystery fossils and gave fossil hunting advice and locations during these past few months. These are in no particular order. Thank you all! Acknowledgements: Kane Ludwiga Tidgy's Dad Fossildude19 WhodamanHD Manticocerasman Rockwood Auspex ynot abyssunder Arizona Chris erose Herb old bones snolly50 fossilDAWG caldigger Max-fossils Bobby Rico RyanDye
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