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Excursion to the Florida Pleistocene


MikeR

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This past weekend Dozer Operator and I made a trip to a favorite locality near Lake Okeechobee which exposes both the Lower Pleistocene Caloosahatchee and the Middle Pleistocene Bermont Formations.  Hurricane Mathew had grazed the Florida Peninsula the previous week so we were optimistic that the prodigious rains would have washed the sediments revealing marine goodies as well as some terrestrial vertebrate material.  Jonathan came away with some nice horse teeth and I picked more Siphocypraea than I can ever use.  My finds of the day included a pair of rare Morum oniscus from the Bermont and maximum sized Turbinella scolymoides from the Caloosahatchee.

 

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"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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Great finds Mike. The M. oniscus is a new one to me. Had to google it. Very nice.

Bulldozers and dirt Bulldozers and dirt
behind the trailer, my desert
Them red clay piles are heaven on earth
I get my rocks off, bulldozers and dirt

Patterson Hood; Drive-By Truckers

 

image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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Hi,

 

Nice finds ! Is it a Cassis on your hand ? :wub:

 

Coco

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

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3 minutes ago, Coco said:

Hi,

 

Nice finds ! Is it a Cassis on your hand ? :wub:

 

Coco

 

Yes.  Semicassis granulata (Born, 1778).

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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Very nice finds, Mike. :) 

Glad you had a fruitful outing. 

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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"In every walk with nature one receives far more than he seeks."

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Wow, Mike.  Finds like that play with the imagination...take a walk on an ancient beach.  :)

The human mind has the ability to believe anything is true.  -  JJ

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Cleaned shells from the Lower Pleistocene Caloosahatchee Formation.

 

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"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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Dang Mike, looks like you all had a great time! Have fun cat/logging that stuff! Awesome. Any chance you were you able to snag any echys or crabby fragments? Thanks for showing us. 

 

Regards, Chris 

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13 hours ago, Plantguy said:

Dang Mike, looks like you all had a great time! Have fun cat/logging that stuff! Awesome. Any chance you were you able to snag any echys or crabby fragments? Thanks for showing us. 

 

Regards, Chris 

 

Last year I found a Clypeaster rosaceus at the same locality but not this time.  I won't know about crab parts until I go through the screened material.

 

Mike

  • I found this Informative 1

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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14 hours ago, Search4 said:

Gorgeous shells,  especially that spiny looking cowrie.. do you find any calcite? 

 

Not so much at this site.  Further west near Imokalee however there is a lot of limestone within the Golden Gate Member of the Tamiami Formation.  I had the opportunity to collect within that unit at a construction site last year and came away with some cool calcite replace mollusks and corals.

 

Mike

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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On 10/22/2016 at 9:02 AM, MikeR said:

 

Last year I found a Clypeaster rosaceus at the same locality but not this time.  I won't know about crab parts until I go through the screened material.

 

Mike

 

On 10/21/2016 at 7:48 PM, Plantguy said:

Dang Mike, looks like you all had a great time! Have fun cat/logging that stuff! Awesome. Any chance you were you able to snag any echys or crabby fragments? Thanks for showing us. 

 

Regards, Chris 

 

FYI on the crabs.  Portunus (Blue Crab) and Menippe (Stone Crab) cheliped found in washed Caloosahatchee screening.

  • I found this Informative 1

"A problem solved is a problem caused"--Karl Pilkington

"I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain

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Nice to see there is still at least 1 place you can collect fossil shells in Florida.

Would love to come over collecting again but its a long way from the UK if

I can't find anywhere to collect.

 

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You can find a lot of Miocene stuff being used as fill in some parts of central Florida. All around the phosphate mining industry are places to get shell fill by the truckload. It's kicked aside by the mining industry. You see it alot at state parks used as draining rock or landscape rock would be used. It breaks down over time and you can actually find a lot of intact shells. It's also used in parking lots close to the beaches, where it's often used alongside Coquina rock fill. The state, county, and local parks around here (Hillsborough,Pinellas,Pasco,Hardee) use a lot of it and they often used it near trail heads. There are lots of loose ones laying on the ground after rains. The rangers don't care if you pick up a couple and put them in your pocket. They just don't want you out there with shovels or disturbing the ground. I've found some really nice specimens in surprisingly good condition just looking on the ground after I park.

 

 

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