|
|
Post by paleoflor on Feb 12, 2011 7:06:42 GMT -5
A paleobotany section, that's great! I'll try to give it a kick-start by making a post on what I think is a Pinnularia specimen. I found this fossil at the famous Piesberg quarry (Carboniferous, Bolsovian-Asturian) near Osnabruck, Germany. Pinnularia is the name for the rootlets of Calamites plants, similar to what Stigmaria represents for the large lycophyte trees such as Lepidodendron and Sigillaria. The Piesberg is the only locality where I found such rootlets and now I wonder whether people have found similar structures at other places as well or not... Attachments:
|
|
|
|
Post by Joe Botting on Feb 12, 2011 7:15:31 GMT -5
Thought you'd approve! ;-)
I've had more distal bits of Pinnularia in the Carboniferous in Yorkshire, where all you get are masses of tangled rootlets. One difference from the typical was that it didn't have the paired, opposing branches that you've got here, so from my very limited understanding of these things, you're probably right...
|
|
|
|
Post by paleoflor on Feb 12, 2011 7:22:39 GMT -5
Hi Joe,
Haha, yes, it feels great to have a separate plant section, as plant posts regularly get buried in the avalanche of posts on other topics, at least in most of the other fora I attend. So this is fantastic!
And yes, I also regularly encounter the 'cluttered' rootlets that are tangled together. However, I actually never found the more proximal parts before (both in the field as in the literature) so I started to wonder whether this might actually be something else... Well, it is a nice specimen anyway, that's for sure. I am not familiar with the floras of Yorkshire, could you show me some pieces? It is always nice to be able to compare material of different provenance...
|
|
|
|
Post by pleecan (Peter Lee) on Feb 12, 2011 7:29:07 GMT -5
Rare Silurian Cooksonia: Bertie Lagerstatte in Fort Erie ON CANADA  |
|
|
|
Post by Joe Botting on Feb 12, 2011 7:29:30 GMT -5
I'd love to oblige on showing off some fossils, but when we moved to China we didn't take them with us... and sadly the Carboniferous plants I have only limited photos of. I'll post some of what I've got, though, as there are a few mysteries in there. At least to me!
I know the way botany does tend to be buried unless regularly dug over, so knowing there's at least one member with a keen interest, it's only fair! I'll add other boards as and when particular specialisms seem to require them.
|
|
|
|
Post by paleoflor on Feb 12, 2011 8:23:59 GMT -5
@ Peter: beautiful specimen indeed! Silurian plants are rare and elusive to me...
@ Joe: Oh that is a shame indeed, but still, please do post the pictures you have. I still have to cross paths with the first plant fossil I didn't find interesting to see. Also, do you have any plant material from China by any chance? That would also be fantastic to see some pictures of!
|
|
|
|
Post by ammocarbsteve on Feb 16, 2011 7:36:28 GMT -5
Tim.... I dont think I have ever noticed any root structure that resembles that... Just before I collected Crockhey a year before it ended I just missed the calamites forest apparently whre some spectacular specimens were collected and since then.... nothing to compare... The 'seat earth' where the Stigmaria comes from has many jumbled masses amongst its layers...Thanks for bringing it to my attention.... something for me to look out for....
Peter... Very nice specimen....
|
|
|
|
Post by paleoflor on Feb 17, 2011 13:47:10 GMT -5
Hi Steve,
Yes, I really wonder about this specimen, for it is also quite different from the other Pinnularia specimens I own. Maybe I should send out some emails to ask for proper identification...
|
|
