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August 2019 - Finds of the Month Entries


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It's plesiosaur because it's hourglass-shaped, unlike the disc-shaped ichthyosaur paddle digits. The bone is about the right size for Plesiosaurus and plesiosaurus is by far the most abundant plesiosaur in the formation. The species was just a guess, but there's only one known species of Plesiosaurus.

@JohnJ

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15 minutes ago, fossil_sea_urchin said:

It's plesiosaur because it's hourglass-shaped, unlike the disc-shaped ichthyosaur paddle digits. The bone is about the right size for Plesiosaurus and plesiosaurus is by far the most abundant plesiosaur in the formation. The species was just a guess, but there's only one known species of Plesiosaurus.

@JohnJ

 

Since accurate information is also part of the FOTM mission, your find may be better described as part of an "unknown plesiosaurid".  Dr. Adam S. Smith mentions a greater diversity of plesiosaurids are known for that area.

;)

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

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11 minutes ago, JohnJ said:

 

Since accurate information is also part of the FOTM mission, your find may be better described as part of an "unknown plesiosaurid".  Dr. Adam S. Smith mentions a greater diversity of plesiosaurids are known for that area.

;)

It can't be the rhomaleosaurid because it's not elongated at all, which is typical of that group. It can't be Seeleyosaurus or Hydrorion either because they come from Germany and have no definitive remains from the UK.

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Attenborosaurus and Archaeonectrus are usually classified as pliosaurids which often have quite elongated paddle digits unlike plesiosaurs that have more robust digits in the middle of the paddle.

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This is a wonderful discussion! Lots of solid, arcane information. Thank you!
In the end, it may be wise to hedge to the conservative side and call it "Plesiosaurid cf Plesiosaurus dolichodeirus. This is as much as the physical evidence can say, and the "CF" allows for informed speculation. :)

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"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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38 minutes ago, fossil_sea_urchin said:

Attenborosaurus and Archaeonectrus are usually classified as pliosaurids which often have quite elongated paddle digits unlike plesiosaurs that have more robust digits in the middle of the paddle.

 

:)

You have the advantage of the specimen in hand; we have only seen two dark photos.  

 

It's good that you have tried to accurately identify your specimen.  @Auspex offers good advice...another hedge against the probability there was more than one species of Plesiosaur in those waters at the time.  ;)

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

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11 minutes ago, Auspex said:

This is a wonderful discussion! Lots of solid, arcane information. Thank you!
In the end, it may be wise to hedge to the conservative side and call it "Plesiosaurid cf Plesiosaurus dolichodeirus. This is as much as the physical evidence can say, and the "CF" allows for informed speculation. :)

Agreed:)

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Last entry before college! GCSU hype!

 

Date found: 8/12/19

Name: Aphelaspis brachyphasis Trilobite split with dual-sided plate

Geologic age/Fm: Cambrian Conasauga Fm (~500 MYA)

Location: Chatsworth, GA

 

IMG_20190813_023453234.thumb.jpg.45811fae57268fdc185a824c418fdafb.jpgIMG_20190813_023318803.thumb.jpg.889c7485198c4f061eb936ff32384dfb.jpgIMG_20190813_022934861.thumb.jpg.5ea740af84d4d5b89b2d0e7e7b737c02.jpgIMG_20190813_023543866.thumb.jpg.229e23dff083d716c45a7f8d791c27e8.jpgIMG_20190813_023726685.thumb.jpg.a462f5052d4a2116bd7d263f36a00c9f.jpgIMG_20190813_024334864.thumb.jpg.d74478ed6547996cdc41a980f2c3febf.jpg

 

One of the better packages I've gotten in just 1 split. Dunno if this would be good as one entry, but I'm entering the flip side of the positive slab with the split since it's on the same slab.

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Every single fossil you see is a miracle set in stone, and should be treated as such.

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On 8/8/2019 at 4:28 PM, fifbrindacier said:

 

Found on August, 3th, 2019

Phacops (Phacops) aff. fecundus degener and Phacops sp.

Early Devonian (Emsian)

Col d'Aubisque, Pyrénées Atlantiques, France

 

I have cleaned them a little :

IMG_20190815_214609.thumb.jpg.20823749008a8e8dec79f56320b1a4ec.jpgIMG_20190815_233325.thumb.jpg.80e94ac4a4f06baed74cf308e8302ab9.jpg

IMG_20190808_132122.jpg

IMG_20190808_210750.jpg

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theme-celtique.png.bbc4d5765974b5daba0607d157eecfed.png.7c09081f292875c94595c562a862958c.png

"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

photo-thumb-12286.jpg.878620deab804c0e4e53f3eab4625b4c.jpg

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Date of Discovery: August 5th, 2019

Name: Orodus sp., an early shark.

Geologic Age/Formation: LaSalle Limestone Member of the Bond Formation, Pennsylvanian.

Location: Oglesby, IL, USA

 

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Hi

 

Here is is a link to a partial ichthyosaur that me and my brother found and I posted on the forum in March 2013. I found the first part of the skull on Boxing Day 2012 and then other parts were found over the next few months.

 

 

Ive finally got around to having it prepared. The preparation was done by Craig Chivers  and he started about two weeks ago and finished yesterday. It has been backed onto fibreglass and reverse prepped.

 

There is about 3/4 of the skull including lots of teeth, along with one of the shoulders, a paddle and a number of ribs.

 

 

 

Found : March 2013

Name: Ichthyosaurus sp, possibly a communis

Geologic age: Jurassic (Hettangian) - circa 190 million years

Location: Lavernock Point, UK  - Preplanobis beds

Prepped this month.

 

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Length of the specimen is about 1.5 metre

 

We were looking for the rest of this specimen when we found the Welsh Dinosaur.

 

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On 8/17/2019 at 11:45 AM, Welsh Wizard said:

Ichthyosaurus sp, possibly a communis

Jurassic

Hettangian - circa 190 million years

Lavernock Point, UK

Preplanobis beds

Length of the specimen is about 1.5 metre

Superb !:envy::envy::envy::envy:

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theme-celtique.png.bbc4d5765974b5daba0607d157eecfed.png.7c09081f292875c94595c562a862958c.png

"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

photo-thumb-12286.jpg.878620deab804c0e4e53f3eab4625b4c.jpg

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On 8/17/2019 at 11:45 AM, Welsh Wizard said:

Ichthyosaurus sp, possibly a communis

Jurassic

Hettangian - circa 190 million years

Lavernock Point, UK

Preplanobis beds

Length of the specimen is about 1.5 metre

Stunning!

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I would like to add my most recent shark find to the contest for this month: 

 

Found: 8/17/19

Name: Listracanthus hystrix (4 associated shark dermal denticles)

Location: Starved Rock Clay Products Pit, Utica, IL

Geologic Age/Formation: Pennsylvanian, Mecca Quarry Shale Member of the Carbondale Formation 

 

20190819_082144-1.thumb.jpg.05e559cd1ac6f145f95f4d059da381ae.jpg

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Now there's something you don't see every day. ;)

 

Shaping up to be another great and diverse month for the FOTM contest.

 

 

Cheers.

 

-Ken

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I'd like to add in my best find from the Starved Rock Clay Products Pit as well.

 

Found: August 17, 2019

Name: Two acanthodian fish spines

Location: Starved Rock Clay Products Pit, Utica, IL

Geologic Age/Formation: Mecca Quarry Shale Member of the Carbondale Formation (Pennsylvanian)

 

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as2.jpeg.2f438c1ace6846b0160c105bbaf61ddc.jpeg

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Watching from Uni with great anticipation! :D

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Every single fossil you see is a miracle set in stone, and should be treated as such.

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Hi All, 

Here's an Asteroceras and Promicroceras ammonite that I found in an intermediate nodule at Lyme Regis - It is very unusual to find a nodule so full. I have included a photo of it as found and also after it had been prepared by Paddy Howe. 

Thanks :) 

 

 

 

Found: August 15, 2019

Name: Asteroceras and Promicroceras ammonite

Location: Lyme Regis, Dorset, England

Geologic Age/Formation: Jurassic

 

As found

Screen Shot 2019-08-20 at 15.36.03.png

 

Post prep

Screen Shot 2019-08-20 at 15.35.53.png

 

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On 8/19/2019 at 5:26 PM, deutscheben said:

I would like to add my most recent shark find to the contest for this month: 

Found: 8/17/19

Name: Listracanthus hystrix (4 associated shark dermal denticles)

Location: Starved Rock Clay Products Pit, Utica, IL

Geologic Age/Formation: Pennsylvanian, Mecca Quarry Shale Member of the Carbondale Formation 

20190819_082144-1.thumb.jpg.05e559cd1ac6f145f95f4d059da381ae.jpg

Fantastic find !!!! Beautiful detail. Mine is quite difficult to see so I am a little jealous. 

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Figured I'd throw up my nicest Brach find of the month. Found it exposed ventrally, and prepared from the other side. Interesting preservation with both valves.

Found: August 13, 2019, prep finished August 16, 2019

Name: Brachiopod, Spirifer Sp.

Location: Benton County, Missouri, USA

Geologic Age/Formation: Mississippian Age 

20190822_151859.jpg

20190815_180705.jpg

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On 8/7/2019 at 12:53 PM, FranzBernhard said:

:D:D LOL!!

So, my area has already transformed into Florida ;). Too hot or too many thunderstorms or too rainy during the summer, incl. all kinds of bugs. Winter is much better, only a few weeks with frost and snow left - best time to prospect (no vegetation) and also to dig (still not hot).

Franz Bernhard

Unfortunately, it seems that many places are changing into Florida as far as weather patterns go. Florida is changing into Atlantis:o

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Opting for rarity over beauty, I would be remiss not to enter what, for some trilobite collectors, is a once in a lifetime find. 

 

Comparative black and white image from Ludvigsen, R. (1979) Fossils of Ontario Part 1: The Trilobites

 

Found: August 23, 2019

Name: Terataspis grandis (pygidium fragment)

Location: London, Canada (imported fill)

Geologic Age/Formation: L. Devonian, Bois Blanc Fm. 

Screen Shot 2019-08-25 at 8.03.32 AM.png

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...How to Philosophize with a Hammer

 

 

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