Show Us Your Cordaites

[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?

[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.....

best regards

Edited September 24, 2012 by docdutronc

[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.....

[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

Edited October 20, 2012 by docdutronc

[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...

[Auspex]

To me, it looks like spalling of the matrix.

[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.

[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

[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...

[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 ......

[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

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.

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

[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

[docdutronc]

Hi Dromiopsis

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

Best regards

Bruno

[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

Edited October 21, 2012 by Grenzton

[docdutronc]

Hi Karl

nice color and contrast....

Tle middle vein is curious ! Cordaites ???

Best regards

Bruno

[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

[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.

[RomanK]

Last from my finds, Cordaites leaf coated by azurite.

and malachite

Edited October 27, 2012 by RomanK

[docdutronc]

Nice colour ,Roman ,congratulations

Bruno

[RomanK]

Nice colour ,Roman ,congratulations

Bruno

Thank you Bruno!

More Permian Cordaites wood

Edited October 22, 2012 by RomanK

[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.

[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?

[itwasntme]

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

[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

[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