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Found 12 results

  1. Hey Gang, Happy New Year! I'm not sure this is exactly a fossil prep question but it relates to Identifying an unknown supposed Pleistocene fossil from Iowa so here goes. I'm trying to put together a comparative collection of extant/extinct mammal inner ear bones. I've got a number of fossil fragments from a number of critters and about to work on removing a couple of petrous bones/bulla (highlighted with red arrows) from a couple of extant skulls. Ive got to cut them out of 2 extant bovid skulls/cap--see photo below: The smaller example on the left is from a sheep and the other a much larger bovid I'm assuming a cow/Bos. I am thinking I can take my dremel with a cutting bit and remove the sheep petrous bone fairly easily by removing a surrounding section thru the skull cap along the blue line i've drawn. The larger skull on the right is more stout so I'm looking for any easy/cheap ideas from Harbour freight, hacksaw ideas or other to cut the ear bones free. Perhaps the dremel will have no problem cutting thru it as well. i've seen some pretty cool dissection equipment but I'm doing this on the cheap to satisfy the curiousity of how these bones are positioned/attached and identify their components and take some photos along the way. Any simple solutions for removal are welcomed. I'm ok with up/experimenting one side as I can always work on the opposite petrosal of each. Here's an unknown petrosal that I have that I want to compare against to compare the two extant bones too. I was told it might be possibly bison from the Pleistocene of Iowa. That ID has not been confirmed Thanks! Regards, Chris
  2. Shellseeker

    Florida jungle

    Labor Day. I went into the South Florida jungle and labored strenuously. Mosquito and Horse Fly bites, hands and arms sliced by Saw Palmetto fronds. I did get some rewards.. One was getting to stand in the water while hunting. Almost all marine fossils On the way to the site, I noted scattered bones from a 3-4 year old cow. There were some Vertebrae with fused epiphysis, but at least 3-4 epiphysis laying on the ground. I decided to take photos that I could use for comparison purposes The lower m3 seems to be approximately 40 mm. Note the stylids. I was curious about the shape of uppers versus lowers. I note that the upper M3 is actually smaller in length than the M1 or M2. Just sharing a day well spent. Muscles really sore, lots of cuts, charleyhorse in left thigh...
  3. tiars

    Bison or Cow Molar?

    I was on a hike with my boyfriend yesterday along a lake in Central Alberta, Canada when we came across this bone in the river. I know some of the discourse of using the stylid as an identification tool to differentiate between cows and bison but I can’t seem to figure this one out! Please let me know!
  4. KimTexan

    My Texas Bison Bonanza

    Last June 2018 I stumbled upon the skeleton of a bovid in a creek that was quite old considering it was down 5 feet or so in a bank. I thought it was a cow. I collected the bones that had fallen and a couple that easily came out without any real digging. I brought them home and washed them up and most have been sitting out on my patio under a bit of cover. Last Wednesday night I went to the monthly Dallas Paleontological Society meeting. While there I bought a book on cow and bison fossils. This past Saturday I had a busy morning and afternoon and got home a little after 3:00. I sat down to read the book. It named 3 notable differences between cow and bison bones. I was reading in suspense. I wanted to know if it was cow or bison. Of course I wanted it to be bison, but assumed it was cow. I got to page 10 and the one distinguishing bone I had was a metatarsal. I went and got it and I suddenly realized it was a bison bone!!! ! I had a sudden rush of excitement. My adrenaline was flowing as I flew around the house to change clothes and gather stuff I may need. I did not know what I’d find. For all I knew everything had washed away already. It had been over 7 months. We’ve had lots and lots of rain and numerous flooding events since last June. So I was skeptical. The place is about 40 min from my house. By the time I got everything ready and got there it was almost 4:30. It is about a 10 min walk from where I park my car. I’d never been to the creek in wet season so for all I knew it would be under water. I put on my hip wanders just in case. I got my pack and my garden hoe/claw digging tool. I headed out to the spot. The area above the creek is a flood plane. There was lots of standing water everywhere. When I got into the woods there were 2 nice 8-10 person tents there which appeared to have been vacated rapidly. They were in the flood plane and looked liked they had actually been flooded. No one had returned to take them down. There were hog tracks all over the place and the odor of hog excrement in the air. The forest floor was very mucky. I meandered through the trees and fallen limbs. The forest was fairly wide open with very little underbrush. I came to a point where I had to turn right to be able to find a point of access to the creek. The banks are 10 to 20 feet or more high depending upon where you’re at in the creek. The bank edge is a straight drop down into the creek so you can’t enter just anywhere. I came to a spot where there was a 3 foot drop with a tangle of roots where I could get down to a lower level and then into the creek. Then there was a hill so I sat down to scoot over the edge and then walked carefully down the hill. From there it was a short distance to the creek. Then I turned to walk down steam. I came around the bend in the creek and saw this. If you look closely you can see a large whitish object. That is the bison skull. To the left were thoracic vertebra and to the right were cervical vertebrae. Go figure that one out. Then there were some ribs and the edge of other bones and then another 5 feet down on the right was a femur. It was pretty chilly. In the low 40s with a stiff wind. Although down in the creek I was protected from the wind. I put down my pack and took out my gloves and a chisel to probe the dirt with and pull some of it away. The base of both horns were present, but no sign of the whole horns. A tip of a horn was broken off and sitting in the cavity of the other horn on the right. Otherwise both horns were gone. I carefully lifted the horn tip out and set it aside. Here is the skull with the horn tip on the right. These are thoracic vertebra. There are 6 visible behind the roots. These are cervical vertebra. I think 5 or 6 of them exposed. I uncovered part of the skull to its condition. There were a couple tree roots growing through it and the skull was split in two front to back about where the upper sinus cavities were. There were cracks all over the back and side of the skull. The atlas vertebra was in place with a bone that looked a bit like a broken rib sticking out of it. I didn’t know what was going on there. It seemed fixed in place as if it belonged there. After seeing all the cracks I decided to go back to my car and get the bottle of cyanoacrylate, my head lamp and something to drink. I grabbed a couple plastic bags and a small plastic box. I hurried back to begin the task of excavating the vertebrae and begin pedestaling the skull. I was in for a lot of work and sunset was only 30 minutes away. But I was really hyped about the whole thing. It was more fun and play than work in my eyes. I’ll post more of the story and pics tomorrow.
  5. Done Drillin

    Peace river bone id

    Found this piece of bone in the Peace River and I’m thinking it is possibly a fractured piece of a bison (or cow !) front leg ulna ? Thank you for helping with the id
  6. dbrake40

    Bison Bovid Conundrum (Needs ID)

    Ok I thought I had started to be able to ID bovine teeth and jaws and then this threw my off. This is from a post on Facebook - found in a cave in Kansas. I have posed here with he user's permission. Why is there a three-lobed molar in the middle of this lower jaw? In the past I had though the m3 for cow/bison was the only three lobed molar. But some searching online is telling me otherwise. Also the m3 here looks two-lobed. Can someone clarify?
  7. K.drijber

    Cow or bison tooth?

    Hey folks! I found this tooth while walking through the castle river in southern Alberta, in the mountains. It was lying on the river gravels; the river is very low currently and would normally be flowing over where i found the tooth. I've read a few posts here regarding the debate of cow vs bison, I think this stylid seems to me quite prominent but, I'm no expert! Heh. Sorry about the ruler being in inches, it was the only one i could find! It doesn't seem to be fossilized at all but from wear and color I would say it is fairly old. Bison used to be in this area in pre-settler times so I feel like it could be a bison tooth from a few hundred years ago? Or I'm hoping? Hahaha. Any help would be amazing!!
  8. FogOfGrass

    NE Kansas | KS River | Metatarsal ID

    Found a good thread by @tracer on bos vs bison metatarsal Below are a couple I have that I would like to get an opinion on. Per the thread above I have my guesses but the smaller diameter is making me wonder if I have the right species or if it’s an age issue. Thank you
  9. Bobby Rico

    ID please on this mammal tooth

    Hi all I have been looking at old boxes of fossils to find some goodies for my Secret Santa and I found this tooth. Label says, found 1988 , near Stratford upon Avon. from the period of the Devensian Glaciation. I think it is a bos tooth but an ID from the forum would be really great. Thanks for your help. have a nice weekend. Bobby
  10. Found a tooth walking along the gravel/sandbars of a creek in central Iowa (Des Moines lobe) and came across the tooth on the right. I was surprised to find both these jaws about 1,000 ft apart and a mile downstream. I assumed they were the source, but looks like the loose tooth may be an upper (it's larger) and both these jaws seem to be full. The teeth don't seem to match up symmetrically either, making me think it might be different individuals. Modern and ancient bison remains are pretty commonly found here (the former being extirpated ~100 years ago), but I figure cows are just common enough to confound things. They seem to have the stylids I read about, but I can't tell if they are strong/prominent enough to be Bison. Any help would be appreciated!
  11. Darko

    Bison/Bos tooth?

    Found this tooth while ago.Still not sure to which animal this belongs to.I know that it could be one od these two : Bison or Cow.I Found it last year in a Stream in the middle of the forest when i was looking for Oysters (Gryphea gingensis) in Paraćin,Serbia.People do not live near that forest but maybe they lived in some past.
  12. Harry Pristis

    Bison m3 Molars

    From the album: TEETH & JAWS

    Two Bison sp. third lower molars of different age. This is the last tooth to emerge at maturity. The younger individual had not worn its teeth much . . . tooth wear has not reached the diagnostic isolated stylid. The older individual has worn its teeth enough to engage the isolated stylid. Note that the tooth of the older individual retains some cementum. In life, all the bison cheek teeth were wrapped in cementum. Being the softest of the three types of tooth components (enamel, dentin, and cementum), this exterior 'wrapper' is often lost on a fossil. (This image is best viewed by clicking on the button on the upper right of this page => "other sizes" => "large".)

    © Harry Pristis 2014

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