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Is there a way to identify this plant? Looks like plant leaves, but I am unsure of the species. Does anyone know?

[uPDATE 05 Okt. 2013 ] Update #1 : Click here to go to the new images posting Update #2 : Click here to go to the new images posting Hi! So. This is my second post, and I hope I read up well enough in the regulations & suggestions section to make it a good one. The title is a bit of a gig - although I've been steadily collecting fossils around here (Bierzo, Leon, Spain), it's nothing much spectacular probably. Besides that I'm the biggest possible amateur you can imagine I'm also extremely picky (tip missing - ditch it!. Cracked? Ditch it! Boring color? Ditch it! Low contrast? Ditch it!) and not to mention quite clumsy. Do not attempt to chop off interesting fossils from bigger shards of fragile stone when you are me. Really. The last few years (I've started collecting roughly in 2004) I have started to hunt for new species, and have confined myself to 'beautiful' specimen (rare rock types, rare colors/shape etc) if it's a common type. So all in all I have two boxes and maybe a total of 80 stones, of which the majority is pebble-sized (I seem to like small ones for some reason..- they have amulet-like properties to me!). I will post about 25 of them here in several updates. I guess my photography and design backgrounds mean I start to look at fossils more and more visually. To compensate for this I have been steadily reading up on carboniferous era fossils and in general, the landscape/climate back then. This and my great interest in evolution have helped to better understand what I am digging up / finding. The below fossils (I will post further updates this week) are a number of samples that I find interesting (and often puzzling). With each I give my opinion on what it might be, but I figure that I'm going to be wrong the majority of times in my guesses (everything I find seems to be part of one or two species...root, trunk, leaf, branches, other leaves, more leaves! argh!). Help is much appreciated ! All fossils are exclusively from a 2x2km zone behind my house, on a little mountain not far from Bembibre, el Bierzo, Leon. Some are from the bottom of the mountain, some from the top. The height difference is +- 300 meters. Rock-types have been varying from dark, coal-like to yellow-white calcium rich materials. I know little of geology and have made as few notes to finding circumstances as is humanely possible. Sorry [edit : Added geographical local map of my fossil locations ] 1) My absolute favorite - because I hope it's of non-plant origin. I've been on a quest to find something fauna-ish for almost a decade! Note the fine texture, which I have read might be bone related? *crosses fingers* [edit] Likely Adelophthalmus asturica 2) Trunk or root of some sort. Different from my other trunk specimen which are clearly lepidodendrons. I guess this could be a more poorly conserved specimen that has lost it's distinct texture? Diameter is roughly 6.5-7.5cm. 3) I have only found shards of this fossil-type in almost a decade. This is a unique specimen to me, and I have no clue what it might be. [edit] probably Asterophylliites equisetiformis 4) More trunk (Diameter : 6cm) What I have read this should be a cast of the central canal of a Calamite stem? (how does it form?) [edit] probably Calamites cistii, internal cast of stem 05) I'm at a total loss on this one. I think I've seen similar imprints on black, coal-like stone with a glassy-oily look? [edit] perhaps a lycophyte stem (compare Syringodendron) 6) I've started to like these high-contrast, cute little fossils more and more. Is this Sphenopteris? Is there further distinction? [edit] probably Sphenophyllum, possibly Rhacopteris (Unlikely : Palmatopteris) 7) The bonus image. I am 99.9% sure this is *not* a fossil. But I am curious how it formed, what it might be ? Anyone? Right. I hope people can enlighten me a little. I am going to make a website with all species I can manage to find around here, because I want to build as complete a database of the ' forest' type that existed here once as possible. I would love to learn more about what plant species or sub-species I am looking at, but also would be very thrilled to learn what *part* of a plant it comes from and/or how the fossilization influenced if worth noting? Thank you very much. Trying to learn