Jump to content
Missourian

Show Us Your Cordaites

Recommended Posts

Terry Dactyll

Bruno.... Another great example.... Tell me.... Is the Cordaianthus - seed cone pretty scarce then in the fossil record?... I see stems, leaf sections and seeds but no other Cordaianthus?

Share this post


Link to post
Share on other sites
docdutronc

Bruno.... Another great example.... Tell me.... Is the Cordaianthus - seed cone pretty scarce then in the fossil record?... I see stems, leaf sections and seeds but no other Cordaianthus?

Hi Steeve

Yes it is quite scarce for me in 30 years of collecting, I found three complete samples..... :D

best regards

img_2619.jpg

cordai10.jpg

Edited by docdutronc

Share this post


Link to post
Share on other sites
Terry Dactyll

Bruno... WOW... That is scarce knowing your contacts and the efforts you put in collecting.... 1 every 10 years!.... (and nice finds)... I'll make sure I look after it.....

Share this post


Link to post
Share on other sites
docdutronc

Hi my friends

Here are two Cordaites leaf who wear large and strange circular structures, these forms whose layout is random seem to correspond to mechanical cutaway on leaf blades , their interpretation remains enigmatic. Is it a phenomenon of desiccation ?, or a mechanical phenomenon post fossilization ?. then how is it that these strange hollow structures are only localized only on leaf and not on the rest of the shale support . We were seen in the lower trace in the form of "S" , these samples come from Liévin basin ...

Best regards

Bruno

http://forums-naturalistes.forums-actifs.com/t5194-curiosites-de-terrain

img_9010.jpg

img_9011.jpg

img_9012.jpg

Edited by docdutronc

Share this post


Link to post
Share on other sites
Terry Dactyll

Bruno... Another very interesting find...Were getting some very good mystery's lately... We never seem to see anything so 'random' associated with the carboniferous plants structures although a couple of the domes do look almost 'seed shaped'...weve seen randomly spaced spirorbis attached to leafs so the randomness and varying sizes must be a clue we cant ignore... I wonder if its a reaction by the plant leaf surface (ie scarring on the leaf) to being sap sucked... forming some sort of lump afterwards to seal the area...

Share this post


Link to post
Share on other sites
Auspex

To me, it looks like spalling of the matrix.

Share this post


Link to post
Share on other sites
sward

I found these pieces about a year ago in the Penn near Mineral Wells, TX. I picked up several pieces and threw them in the back of my truck where they've been rambling around ever since, along with other finds. Since that time, they've been beaten up pretty good, they were much larger. When I collected them, I thought they were a bit unusual, but because of the regular pattern, I finally decided they must be man made.

I now find this thread and it caused me to go dig some of the pieces out of the back of my truck. These pieces look similar to the ones Missourian shows in his post #6, labelled as "Some wood still attached to a pith cast:"

Are these similar to the pieces Missourian is referring to as wood? If so, it's been a heck of a learning experience for me. I had forgotten all about them until I read this post.

post-6450-0-65197600-1350744789_thumb.jpg

post-6450-0-54312600-1350745115_thumb.jpg

post-6450-0-82185800-1350745138_thumb.jpg

Share this post


Link to post
Share on other sites
docdutronc

quote : " Are these similar to the pieces Missourian is referring to as wood?"

Hi Sward

Here is some wood structure ,referring to Cordaites wood and bark ,on the left side of my specimen the alveolar structure seems similar to yours ,Cordaites wood have been describeb like Dadoxylon ....

Best regards

Bruno

cordai13.jpg

006_210.jpg

Share this post


Link to post
Share on other sites
Terry Dactyll

To me, it looks like spalling of the matrix.

Auspex... Do you think spalling of the matrix could result in such uniform shapes?... Its that where doubt creeps in for something naturally occuring...

Share this post


Link to post
Share on other sites
docdutronc

Auspex... Do you think spalling of the matrix could result in such uniform shapes?... Its that where doubt creeps in for something naturally occuring...

Hi Steve

Aupex 's answer is correct ,I agree , looking more closely, there are other spalling ,mecanic alteration ......

projet10.jpg

Share this post


Link to post
Share on other sites
sward

quote : " Are these similar to the pieces Missourian is referring to as wood?"

Hi Sward

Here is some wood structure ,referring to Cordaites wood and bark ,on the left side of my specimen the alveolar structure seems similar to yours ,Cordaites wood have been describeb like Dadoxylon ....

Best regards

Bruno

cordai13.jpg

006_210.jpg

Huh?...and I was assuming it must have been something man made because of the regular pattern. I guess that just goes to show that you never know what you're going to find. Like my wife told me when I was showing her this thead, so I have no idea what I'm doing, I ought to take better care of things unitl I know for sure. :wacko:

I'm a little puzzled though because everything else in the area is marine, crinoids, gastros, etc.

Share this post


Link to post
Share on other sites
Dromiopsis

hello!

Here a leaf? Cordaites? that someone gave me a long time ago....Stephanian, Carboniferous...Alès France...that's the only thing I know....All helps are welcome

Thanks in Advance

D

post-5175-0-98636200-1350841386_thumb.jpg

Share this post


Link to post
Share on other sites
docdutronc

Hi Dromiopsis

Pachycordaites lingulatus Gran'Eury comes from Alès basin ( Grand'Combe ).....

Best regards

Bruno

Share this post


Link to post
Share on other sites
Grenzton

Hi.

This leaf i found in a transgression-zone from cretaceous/carboniferous. the yelowisch colour comes from the erosion from the saltwater of the cenomanian sea. normally this rocks are greyish-black.

Greets Karl

post-7943-0-60103400-1350858057_thumb.jpg

post-7943-0-89522800-1350858067_thumb.jpg

post-7943-0-21027800-1350858076_thumb.jpg

Edited by Grenzton

Share this post


Link to post
Share on other sites
docdutronc

Hi Karl

nice color and contrast.... :wub:

Tle middle vein is curious ! Cordaites ???

Best regards

Bruno

Share this post


Link to post
Share on other sites
Dromiopsis

Hi Dromiopsis

Pachycordaites lingulatus Gran'Eury comes from Alès basin ( Grand'Combe ).....

Best regards

Bruno

Hello Bruno,

Thanks very much for the ID....I am not an expert about plants from the carboniferous

Kind regards

Christian

Share this post


Link to post
Share on other sites
dragonsfly

Hi my friends ,I 'm coming back ,here is a link about cordaites plants from France and Spain ...

Best regards

Bruno

http://forums-natura...olius-sternberg

Bruno, Your photos set off one lightbulb after another, I wasn't making the mental transition from Artisia pith cast to an impression I found ( I didn't have any casts that BIG)...till I saw your impression...then it made sense.

Share this post


Link to post
Share on other sites
RomanK

Last from my finds, Cordaites leaf coated by azurite.

post-814-0-16217000-1350907672_thumb.jpg

and malachite

post-814-0-40342900-1351318279_thumb.jpg

Edited by RomanK

Share this post


Link to post
Share on other sites
docdutronc

Nice colour ,Roman ,congratulations :wub:

Bruno

Share this post


Link to post
Share on other sites
RomanK

Nice colour ,Roman ,congratulations :wub:

Bruno

Thank you Bruno!

More Permian Cordaites wood

post-814-0-88021000-1350925015_thumb.jpg

Edited by RomanK

Share this post


Link to post
Share on other sites
itwasntme

]Just wanted to share a few of mine, I am a COMPLETE newbie to all this, (I'm not familiar with the specific names) but have collected several fossils over the years, but they have always just been called plant fossils by be haha. Most of these were collected in eastern KY and western part of wv. Pennsylvania era and have found some calamite pith from the carboniferous coal swamps. Please forgive my lack of knowledge, just wanted to share a few of my better ones.

post-10188-0-05066500-1350925729_thumb.jpg

post-10188-0-22601900-1350925754_thumb.jpg

post-10188-0-22532500-1350925785_thumb.jpg

post-10188-0-23649700-1350925812_thumb.jpg

post-10188-0-62380100-1350925971_thumb.jpg

post-10188-0-86738000-1350926414_thumb.jpg

Share this post


Link to post
Share on other sites
RomanK

]Just wanted to share a few of mine, I am a COMPLETE newbie to all this, (I'm not familiar with the specific names) but have collected several fossils over the years, but they have always just been called plant fossils by be haha. Most of these were collected in eastern KY and western part of wv. Pennsylvania era and have found some calamite pith from the carboniferous coal swamps. Please forgive my lack of knowledge, just wanted to share a few of my better ones.

Nice examples itwasntme! Could you put it at specific folder called "Fossil ID" to get help :)? My question - why round shape? Are they the drill core fragments?

Share this post


Link to post
Share on other sites
itwasntme

Yes RomanK, these are core drill fragments, when drilling the rock sometimes tends to break right where the fossil is.

Share this post


Link to post
Share on other sites
docdutronc

quote : " just wanted to share a few of my better ones......"

Hi Itwasntme ,thank you for sharing ,I like your speudo ......

Best regards

Bruno

img_4517.jpg

Share this post


Link to post
Share on other sites
Grenzton

Hi Karl

Tle middle vein is curious ! Cordaites ???

Best regards

Bruno

Hi Bruno.

in deed, you're right, the vein is curious. maybe an specialist can determine my leaf.

Greets. Karl

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.

×