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From the album: Arkona
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A few small pieces of matrix were cut from Arkona (Hungry Hollow) slabs obtained from Bob O'Donnell. This is the first thin section from the small pieces of matrix. The small pieces (20mm x 25mm) were mounted on petrographic slides and ground and polished to approximately 50 µ. Photo one shows the matrix before it was mounted on the glass slide. Photo two is the thin section slide made from the small piece at 1.6x mag. Photo three is the object at the bottom of the slide at 10x and full wave plate.
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Another Eldredgeops iowensis southworthi trilobite found at Arkona!
Shamalama posted a topic in Fossil Hunting Trips
Hey Guys, It's been a year since I was out fossil collecting because I was busy moving house. I finally got out to collect this past weekend and found the fossil of the trip on the first day. It's an enrolled Phacops Eldredgeops iowensis southworthi from the Hungry Hollow member of the Widder Formation from Hungry Hollow (Arkona), Ontario. I found it at the feet of our own @crinus as he was chatting with @middevonian. You can bet he was a tad jealous. @Malcolmt did a terrific job of cleaning the matrix off the piece to his exacting standards and the specimen looks gorgeous! He was also able to settle the argument that Crinus and Middevonian had over whether the pygidium was still in place. As found: After cleaning: A closer look at the glabella The left eye is mostly intact... ...but the right eye has been folded upon itself. Very happy to have found this. It is bigger than the one I found last year too!
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Hello everyone! Yesterday, Viola and I were able to visit Hungry Hollow (near Arkona, Ontario), and we had a wonderful time! When we last visited the site back in April, it was cold and cloudy; yesterday, it was hot and sunny, and there were no bugs to bother us, so we were in the South Pit collecting fossils the entire time (about 3.5 hours). Unfortunately I didn't take many pictures, but I blame that on all of the fossils that were calling to me - they wouldn't let me take a break to take pictures! In all seriousness, though, it was a fantastic day out with my little girl - please enjoy the pictures I do have to share with you. Oh, and for those of you that aren't familiar with the rocks at Hungry Hollow - they are Mid-Devonian. Picture #1: Viola just before we headed into the South Pit Picture #2: Viola searching for brachiopods (as usual!) Picture #3: a spiny brachiopod - does anyone know its identity? @Kane Picture #4: a couple of "mommy and baby" Mucrospirifer thedfordensis (I think!) brachiopods - Bob O'Donnell found and gave the one on the right to Viola, while I found and am going to keep the one on the left so we each have one to remember our times together fossil-hunting Picture #5: a gastropod - Platyceras sp. - does anyone know the species name? Picture #6: I found my own Tornoceras sp. - hooray!!! Back in April, Bob found one and gave it to Viola, and I have to admit that I was a little envious because they're so pretty. Well, yesterday I found this specimen, and it's a really pretty shade of purple - I'm in love (Is the species name arkonense, by the way?) Picture #7: A coral with an epibiont on top of it - someone yesterday (I believe his name was Darren - he also gave Viola a bottle of water while we were in the pit - a very nice guy!) told me what it is, but I can't recall what he said. Any ideas? Picture #8: This is probably my favourite hash plate that I found yesterday because there is so much going on - bryozoans, corals, and crinoids - oh my! And perhaps a bit of a trilobite peeking out near the top...? Well that's all for now. I'll likely add more photos after we wash Viola's finds and look through all of our fossils more carefully. Thanks for reading! Monica
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Hi everyone! I'm finally starting to go through some of the things that Viola and I found when we visited Hungry Hollow back in April in preparation of doing a trade, and I was looking for some help with identifying the following items: Item #1, front and back: A tabulate coral perhaps? I think I can see corallites in the "back" photo... (or maybe a bryozoan...) Item #2, front and back: Another tabulate coral? (or perhaps another bryozoan...) Item #3, front and back: A bryozoan? This one looks different - it kind of looks like frilly layers... Thanks in advance! I may end up posting more stuff so keep an eye out for more requests for help!!! Monica
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The missus had an errand to run and asked if I'd like to be dropped off at Arkona for a few hours. Of course, I never turn down an opportunity to get out and collect! It started drizzling, and then pouring. I was still adamant on going, and glad I did. Planning around the weather this year in SW Ontario seems an exercise in futility, as it has been a largely wet and unpredictable season as opposed to more even keel prior years. One of the slim advantages of going to Arkona in the rain is that you can actually see things much better when the ground is wet. As I was going in to the south pit, some intrepid fossil collectors were on their way out, soaked to the skin. They had had enough. They probably thought me foolish for thinking of going down there. And it was indeed mucky. At one point, with the accumulated sticky Arkona clay under my boots, I briefly experienced what life would be like four inches taller. The rains varied in intensity, from a mild drizzle to a somewhat frustrating downpour. Undaunted, I was going to make the most of my two precious hours even as I felt a whole lot heavier being soaked through, runnels and rivulets of rain running roughshod over my ragged mien - lol. I was not gunning for my usual fare this day given the short amount of time and the weather conditions, so it was more about casual surface collecting in the south pit. And so poking through the Arkona clay, I figured I'd beef up my goniatite collection. Here is a row of them in ascending order of size. I am actually quite surprised and proud to have found a fairly large one in this formation, as those generally are nested in the matrix of the Widder Fm above:
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I was able to get out twice in one week to Hungry Hollow - the first with Roger, and the second with my missus. A few neat things were found on both outings, but nothing particularly “wow” for the site. I’ll let Roger speak to the first trip and focus here on the second outing. Deb and I concentrated on the south pit as the prospect of biting flies in the north was not exactly how she wanted to spend a Sunday afternoon. We mostly worked two new benches that were made by someone else in the dense coral layer of the Hungry Hollow member. Attempts to extend the bench were a bit messy given the amount of wet overburden, and the rock itself was tough to work with as it was wet and tended to be very crumbly. And the stuff was pretty much dominated by so much coral that it seemed there was more of that than matrix. However, with a bit of persistence you can find other things in that layer. If you went in too far, it became far too dense to break off in anything but shards; if you went too low, it became a kind of mush. The best spot was a thin band just above the mush, but it involved hacking through a lot of coral at the top to access it. No full trilobites were found. I chopped out some matrix that had a full prone Eldredgeops rana, but it was missing its one side. Unlike Penn Dixie, you have to work that much harder at this site for a lot less trilobites beyond a litany of bits and pieces. On the other hand, they are a bit bigger here than at PD. The Favosite corals were impressive in both size and number. We mostly left those behind for other collectors, piling them up so that they would be readily visible. They ranged from muffin-sized to pie-sized. As we were not having great luck, we shifted our collecting to picking up stuff for gifting purposes. There were a few oddities in the mix, and these were picked up from a bit of surface collecting. I think the next time I go, I’ll be heading back to my spot in the north. I’m just waiting for some stuff to weather a bit more before going on the attack with the strata I was able to expose through some bench-work. The goal will be to find three full Greenops that are currently spoken for. I can average one for every four hours of work if I hustle in moving a lot of shale, and if the bugs will kindly leave me be! Depending on how many more trips I make up there this year, I hope to put together some Arkona sample bags for those who don’t have the opportunity to collect here. I seem to have accumulated a lot of the same material from there over the years, and it would be good to spread it around. Anyway, a few pictures of typical rather than remarkable finds: First up is the heartbreaker. Almost two inches long but missing his better half. Next up is a coral Deb wanted to split to see the structure inside: A typical hash plate from the HH member where the corals do NOT dominate for a change.
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A few of the pieces of fossil matrix I received from Bob O'Donnell required some cleanup. I tried scrubbing with a toothbrush and soap and water to no avail. The only safe cleaning agent I had on hand was CLR (Calcium, Lime, Rust). I know a lot of the matrix and fossils may consist of Calcium Carbonate and was ready for the reaction. I left the matrix in the CLR solution for about one minute then scrubbed them with soap and water. Prior to the CLR bath the matrix was quite dirty, dark and dull. After the etching the matrix was quite clean, dark and dull until I put it under the microscope. The microscope revealed some sculpted areas and surprising colours. The colours and shapes revealed in one matrix piece are the subject of this post. The matrix piece is 55mm x 40mm x 30mm. I photographed only one corner and that required four sections of 10 photos each stacked with Picolay. The four stacked sections were then stitched with Microsoft's ICE. I know I should not have used CLR, but what is life without surprises. Microscope: Zeiss Stemi 305, 2x photo eyepiece, .8x objective. Camera: Canon 1000D, Composite of the four stacked sections. Top Left Top right Bottom right Bottom left
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Hi everyone! Well, Viola and I have officially expanded our fossil-hunting area to include Hungry Hollow!!! We joined in on a field trip organized by the Niagara Peninsula Geological Society this past Saturday, April 29th, and we spent 3 fairly cold and windy hours scouring the South Pit for fossils. Luckily, the pit's rocks are incredibly fossiliferous, so we came away with many specimens. Here are a few pictures of our adventure... Picture #1: Viola in the centre of the pit, looking for little things like brachiopods and bactrites: Picture #2: Viola at the side of the pit holding up her favourite solitary rugose coral: Picture #3: Most of our haul for the day: Picture #4: Some nice hash plates from the pit, mostly containing brachiopods and Tentaculites sp.: Picture #5: SO many rugose corals in the pit!!! Picture #6: A bunch of things, including brachiopods (Mucrospirifer arkonensis and others), crinoid bits, bryozoans, corals, smaller hash plates, and my favourites: pyritized bactrites: Picture #7: A pretty star-shaped encrusting bryozoan (Botryllopora socialis) on the side of a rugose coral: Picture #8: Some organisms on a Mucrospirifer arkonensis - perhaps a couple of gastropods or ammonoids, a bit of encrusting bryozoan, as well as a couple of tiny ostracods (maybe): Picture #9: An Eldredgeops rana cephalon (partial): Picture #10: A trilobite pygidium - it's orange and oh-so-cute!!! I have to thank @Bob for showing Viola and I around the pit, and telling us about the fossils that we were finding - he was an amazing help!!! We had such a great time - hopefully we'll be able to visit again soon!!! Monica (and Viola)
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From the album: Hungry Hollow Fossils
Tornoceras arkonense, Arkona Formation (Eifelian), Arkona (7 mm)© ©
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From the album: Hungry Hollow Fossils
Tornoceras arkonense, Arkona Formation (Eifelian), Arkona (8 mm)© ©
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From the album: Hungry Hollow Fossils
Tornoceras arkonense, Arkona Formation (Eifelian), Arkona (9 mm)© ©
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From the album: Hungry Hollow Fossils
Heliophyllum halli, Hungry Hollow Formation (Givetian), Arkona (60 x 50 mm)© ©
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From the album: Hungry Hollow Fossils
Bactrites arkonensis, Arkona Formation (Eifelian), Arkona (15 x 7 mm)© ©
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From the album: Hungry Hollow Fossils
Eunella harmonica; ?Hungry Hollow Formation (Givetian), Arkona (17 x 12 mm)© ©
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From the album: Hungry Hollow Fossils
Favosites argus; Hungry Hollow Formation (Givetian), Arkona (63 x 40 mm)© ©
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Good day, this is a fossil collected from the Widder Formation at Hungry Hollow. I was wondering if someone might know what this is? It is 3.8 cm x 4 cm and appears to have dimples across its surface, what I believe to have been spines. THANK YOU, Corey Lablans
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Spent a few wonderful hours in Hungry Hollow today! Found numerous interesting specimens in the South Pit, 2 of which are these awesome Blastoids! I never get tired of finding these and I make it my goal to find at least one each time I am there. I did not find one the last time I was there but to make up for that, today I found 2! I searched the UMMP image archive to help me identify them but I can only accurately identify one of them. Devonoblastus whiteavesi (on the left) Can someone help me identify this one?? note the star design on the basal
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Let me begin this topic by saying that I am notoriously bad for posting pictures. Perhaps it's one of those little jobs that always feels like it will take a lot more time and effort than it actually does, so it gets avoided constantly. Perhaps it's because I don't actually have photographs (decent quality ones) of most of my collection. But regardless, I'm terrible for posting pictures. So, this evening, with a bit of free time on my hands, I decided to take advantage of the knowledgeable folks here who have experience with the Arkona fauna and try and pin down some IDs on a few specimens. Going through my photo collections I came across a few photos of things that might be useful for identification purposes. So here's the first one (2011.4.18), currently identified as Platyaxum frondosum.
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Hungry Hollow April 28 - 2 New Trilobites And More
lmacfadden posted a topic in Fossil Hunting Trips
Made it for another dig in the South Pit of Hungry Hollow! I decided to check the bottom of the hills and found 2 rather small but beautiful enrolled trilobites. It's amazing to me that they even made it to the bottom as they would have had to avoid a bizzilion cracks to get there. I guess I was meant to find them. In the first photo you will see the smallest one circled on the top left. The second photo is him - isn't he cute?? That's pretty much my find for the day - nothing too spectacular but all the small stuff I am compelled to pick up and bring home with me. I don't know what it is about those crinoid sections that fascinate me so much. Especially the unusual ones with the little spikes and scalloped holes in the middle. It's still cool enough to enjoy the day and it has been dry enough for both pits, however it rained a lot yesterday so I imagine it will take a few more days to dry things up again. Once the really warm weather comes I may not be digging quite as much so I am taking advantage of this time now!
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Good Finds (Trilobite #2) In Hungry Hollow, April 22, 2013
lmacfadden posted a topic in Fossil Hunting Trips
Headed out to the North Pit of Hungry Hollow, Ontario today. Weather was perfect and I had the pit all to myself! Was hunting small fossils today so my nose was pretty much to the ground the whole time. Found some interesting bits and bobs, some of which I can identify and others I can't (yet). Much to my surprise, I did find another enrolled trilobite (my second), though a little crushed with his one eye missing and part of his nose. Other than that, a pretty big one (3/4" wide) compared to my first which is only about 1/4' wide. If he had been intact, it would have been spectacular!! I could have stayed there all day but my knees and my neck were getting sore... but I can't wait to go back!!
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My First Enrolled Trilobite - Awesome Day At Hungry Hollow April 16, 2013
lmacfadden posted a topic in Fossil Hunting Trips
I was headed out to visit my sister, which would have been a right turn at the stop sign. Instead, Hungry Hollow was calling out to me and I headed out there (left turn) instead! To my delight, I found a number of small fossils that I LOVE and my first enrolled trilobite! At first I thought I had found a trilobite head and was pretty pleased with that, knowing that you don't often find complete ones. When I got it home I took a photo of it... and it looked like the tail of the trilobite. So thinking I was mistaken the first time, I turned it over and took another picture and lo and behold, I had both ends and the middle! That's when I realized I actually had the complete bug, just enrolled! I am excited beyond belief!! I am in LOVE with this little guy. So here is the rest of my find for today... I had a blast. Conditions there are pretty good, a little slippery but doable. I will go back later today or maybe tomorrow. Hope you enjoy these too!
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I Thought "crinoid Calyx" When I Found It But Maybe It's Coral?
lmacfadden posted a topic in Fossil ID
Need help - what is this? I mostly find horn coral and button corals at the south pit in Hungry Hollow, Ontario but this one is unique. Can someone tell me what it is? It is 7/8" long...
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Hungry Hollow, Ontario, April 8, 2013 (Awesome Day!)
lmacfadden posted a topic in Fossil Hunting Trips
I had the pleasure of fossil hunting in Hungry Hollow with some new friends from this forum on Sunday. The temperature was perfect and though the day could have been more fruitful, some of the specimens we found were impressive, in my eyes anyway. Kevin (Northern Sharks) showed me how to spot Goniatite ammonoids (Tornoceras arkonense) in the South Pit of Hungry Hollow and once I knew what to look for, I found some along with some interesting crinoid sections! He also found a button coral (Microcyclus thedfordensis) and kindly gave it to me for my new collection. Kevin found 2 different varieties of blastoids - a great find! We also had 2 paleontologists in our company, Kevin (#2) and Matt (sorry no last names) and Kevin #2's nephew Jesse. So the 5 of us hiked down the river's edge to an amazing outcrop of rocks to search for trilobites. I didn't have the right tool for splitting shale but I had a great time flipping and splitting what I could with my trowel and digging through rubble to find the brachiopods. It was just a nice experience being there to see how it's done by the professionals! With the sound of the river passing by, nothing could be finer (except maybe to find a few more of those awesome bugs!). Here is a collection of my new treasures! Does anyone know what the brownish spongy looking thing is? (1" long)
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Here are some of the brachiopods I have collected in the last few weeks from the river's edge (Ausable River) near Hungry Hollow, Ontario. The water level is low enough to expose some great piles of stone to sift through! Most fo these are weathered but I love the diversity... and I like treasures in my pockets!
