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Trilobites & Crinoid Hunt!

Posted by on June 3, 2013
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It was Sunday, June 2, and I needed to go over to Fountain to take some pictures of the, Root River Bike Trail, trailhead for Fountain Days next week. I decided to take Cty. 8 from Spring Valley to Fountain and I knew that there were some nice road cuts, so I threw my backpack and camera into the truck and took off.

 

Creekbed about 7 miles east of Spring Valley on Cty. 8.

Creekbed about 7 miles east of Spring Valley on Cty. 8.

My first stop was this heavily flooded river bank, where I picked up what turned out to be a

 

Liospira gastropod, part of a cephalopods tailend and a beautiful little horn coral!

Liospira gastropods, horn coral and cephalopod end.

Liospira gastropods, horn coral and cephalopod end.

 

 

 

 

 

 

 

 

 

I was almost to Fountain when I noticed that big quarry off to my left that Bob had told me about earlier. I didn’t see any no trespassing signs, so heck, why not take a peek?

NOTE! IT WAS POSTED NO TRESPASSING, I JUST DIDN’T SEE THE SIGNS!

 

Quarry .5 miles west of Fountain.

Quarry .5 miles west of Fountain.

 

BIG QUARRY inground! I was hoping to find some maclutites and other gastropods (and I did, another Liospira.), but it was what I was not expecting that made this hunt so spectacular!

After walking around on top and finding NOTHING except the single Liospira, and as I got

Far west side of quarry on top.

Far west side of quarry on top.

closer I picked up the biggest piece of crinoid I have found to date, I came across this place…

Which had a lot of hardened mud and was showing crinoid sign, brachs, bi-valves, bryozoa, and as it has turned out, 4 different types of trilobites! But it was the crinoids that were tripping my trigger! I was seeing the “chickens’ feet” I had been dreaming of finding!

 

 

Crinoid place RS

 

And here is a closer look at the site, not too far from the road, but I had to get around that big mud puddle which almost stopped me.

 

 

 

TRILOBITES: All four species found in this spot.

This is Failleana rowley cephalon

Failleana rowley cephalon - note crinkles on front.

Failleana rowley cephalon – note crinkles on front.

Failleana rowley - back

Failleana rowley – back

Failleana rowley - side

Failleana rowley – side

Cheirurid  Trilobite – Ceraurus sp. : Note diagonal pleural furrow is diagnostic for this type of trilobite.

Ceraurus sp. Trilobite

Ceraurus sp. Trilobite

In the rock, lower edge.

In the rock, lower edge.

 

 

 

 

 

 

 

Flexicalymene sp. on its side? Trilobite anyways… 🙂

 

May be a Flexicalymene sp. on its side.

May be a Flexicalymene sp. on its side.

 

CELTENCRINURUS TRILOBITE – Very Rare! This is going into the Midwestpaleo.com collection which will eventually go into a University collection.

Celtencrinurus Trilobite- very rare!

Celtencrinurus Trilobite- very rare!

 

DREAMING CRINOIDS

I have to admit that I have been dreaming of finding a whole crinoid, calynx and all, since last fall. Last year after I bought a trilobite, I started finding pieces. So this year, at MAPS, I bought a small rock with two crinoids as an offering to the Fossil Gods that I may find one of my own. Rather unwillingly, I had decided to make that one up as a present and give it away.

Well, the Fossil Gods blessed me with…

Crinoid 1: The glasses are for reference as to size.

Crinoid 1: The glasses are for reference as to size.

And…

 

Crinoid 2

Crinoid 2

And…

 

Crinoid 3

Crinoid 3

And…

 

Crinoids 4 & 5 & 6!

Crinoids 4 & 5 & 6!

And, drum roll please, my personal favorite…

And Number 7, wins!

And Number 7, wins!

The crinoids are: “It is Cupulocrinus crossmani. See Brower, James, ” Cupulocrinid Crinoids from the Middle Ordovician of Northern Iowa and Southern Minnesota.” JP 66 1992. Dr. Brower did a series of papers on the Ordovician crinoids of the area.”
crinus

What a day!

 

 

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4 Responses to Trilobites & Crinoid Hunt!

  1. Mike Menasco

    Awesome finds !!!!! Those crinoids are great!!!!

  2. Adele Binning

    Hi,
    I ran across your page and have some questions. I am looking for a spot where families might reliably find Ordovician fossils. Are there public fossil-hunting areas?
    I picked up a bunch of fossils in Ohio this past summer near where I grew up and my students have really enjoyed looking at them and sketching them. I would like to organize a springtime trip for families. Our school is in Bloomington, MN so Fountain is a long trip for some but I don’t think it is too far if they can have some success. Any advice would be really appreciated.
    Thanks for your page with photos and descriptions.

    • Beverly

      Hi Adele, I give fossil tours where I absolutely guarantee you will find Ordovician fossils. I customize the tours for time, accessibility issues, and age groups. Would love to chat with you further about fossil hunting here in Fillmore County. My personal email is: bcfossillady@gmail.com 🙂

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