Jump to content
digit

August 2019 - Finds of the Month Entries

Recommended Posts

fossil_sea_urchin

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

Share this post


Link to post
Share on other sites
fossil_sea_urchin
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.

Share this post


Link to post
Share on other sites
fossil_sea_urchin

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.

Share this post


Link to post
Share on other sites
JohnJ
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.  ;)

Share this post


Link to post
Share on other sites
fossil_sea_urchin
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:)

Share this post


Link to post
Share on other sites
fifbrindacier
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

Share this post


Link to post
Share on other sites
digit

Very cool! I love seeing shark teeth that I never knew about before. ;)

 

 

Cheers.

 

-Ken

Share this post


Link to post
Share on other sites
fifbrindacier
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:

Share this post


Link to post
Share on other sites
JohnBrewer
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!

Share this post


Link to post
Share on other sites
JohnBrewer

Judging by the length of its jaw and the location I’d say I. communis is a high probability. 

Share this post


Link to post
Share on other sites
Welsh Wizard

Hi JohnBrewer and fifbrindacier. 

 

Thanks for the comments. Much appreciated.

 

Nick

Share this post


Link to post
Share on other sites
digit

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

Share this post


Link to post
Share on other sites
MeargleSchmeargl

Watching from Uni with great anticipation! :D

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Recently Browsing   0 members

    No registered users viewing this page.

×