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Here are the last of recently collected Mazon material with fossils already showing. More to come as the freeze-thaw cycles take effect. Thanks as always @Nimravis @stats @RCFossils @deutscheben @Mark Kmiecik @Runner64 Specimen 1 (4.1 cm long) — A fern, found as is. Enough detail for an ID? Specimen 2 (9.1 cm long) — Macroneuropteris? Found as is. Did a light vinegar wash. Specimen 3 (2.7 cm in diameter) — Found already split. D and E illuminated to show relief. Now that my copy of Wittry's Fauna has arrived, I wonder if this might be Essexella asherae, as there appears to be a semi-circular feature above a more rectangular feature, perhaps most visible in C and E. Specimen 4 (~15.5 cm in diameter) — Found already split. I cannot make much sense of this. Maybe a jumble of plant pieces? D and E illuminated to show relief. There seem to be some fossily features, like 3 or 4 repeated ridges in the bottom right of D, a long linear feature in the upper right of D (some of the material here is dirt, I realized after taking the photos). The patches of different color in B don't obviously correspond to the different relief elements in D.

Wikipedia did not have a page for Macroneuropteris. So, I've been working in my spare time on writing that article. Finally got to the point of publishing it on wikipedia. https://en.wikipedia.org/wiki/Macroneuropteris It still needs some work but I thought it was close enough to 'go live'. Since it was my first major article created from scratch on wikipedia, I wanted it to be as comprehensive as possible. However, there is always more that could have been added Let me know what you think or if you see any glaringly wrong parts. -------------------------------------- I also did a major update to the page for Psaronius. Previously it had been only one sentence. https://en.wikipedia.org/wiki/Psaronius And added small stub pages for Essexella and Peachocaris. https://en.wikipedia.org/wiki/Essexella https://en.wikipedia.org/wiki/Peachocaris Let me know if you see anything wrong on these pages as well. Or I should add...you can simply edit these pages yourselves as well. So.... anyone else added stuff to wikipedia?

A bit of information I came across today in Paleobotany: The Biology and Evolution of Fossil Plants . Arthropleura may have been important for pollination of Medullosa (seed ferns such as Macroneuropteris and Allethopteris). It sounds like one of the lines of evidence is an arthropleura part from Mazon Creek. Interesting.....