Permian Chert News
deutsche Version
This is a series of brief treatises based on own finds, unless indicated otherwise,
 of Permian cherts (including uppermost Carboniferous),
  every one of them reporting some observation, idea, interpretation, or discovery
    apparently not yet published in the scientific literature
       and occasionally contradicting established wisdom.

Every treatise consisting of text, pictures, and references is confined to a concise format of one or two printed pages, thus differing much from the lengthy papers in scientific journals. This is meant to be a means of spreading information quickly in easily comprehensible quanta, which would be virtually impossible with the conventional ways of publication. (A few contributions had been published at since 2004 where they have been deleted.)

For critical comments on other work concerning cherts and fossil wood see Misconceptions and Errors and Mistakes .
The below list will be extended as long as novel observations become available

List of issues            
For issues sorted according to subjects see PCN2.

1.  Scolecopteris, the maggot fern: "maggots" fat and lean
2.  Venation pattern – a distinct feature of Psaronius tree fern pinnules
3.  Hairs on Scolecopteris sporangia
4.  Scolecopteris synangium stalks – real and illusory
5.  Conspicuous in the chert - synangia of Scolecopteris
6.  A conspicuous Psaronius specimen from Döhlen Basin
Psaronius /Scolecopteris – a floating tree fern ?
8.   Biogenic iron precipitates in red cherts from Döhlen basin, Saxony
9.  A big Psaronius from Döhlen basin, Saxony
10. Calamite offspring
11. Multiple xylem strands in an unidentified Lower Permian plant from Döhlen basin
12. A well preserved Psaronius fragment from Döhlen Basin
13. Various diffusion effects in fossiliferous Permian chert
14. Fungi in Permian cherts  
15. Scolecopteris spores
16. A jellyfish that would not fit in
17. Microbes, fungi, "maggot fern"
18. Eerie shapes athwart microbial layer stacks  (1)
19. in German only: Sächsische Madensteine - ein reiches Forschungsfeld, nicht gut bestellt
20. Various peculiar sporangia in one chert sample
21. Permian tree fern seedlings or enations ?
22. Maggot stone black-red-yellow
23. Sphenophyllum  bristle brush
24. Maggot fern disputes
25. Psaronius conducting strands with peculiar aspects
26. Maggot fern confusion
27. Eerie shapes athwart microbial layer stacks  (2)

28. Eerie shapes athwart microbial layer stacks  (3)
29. Prickly frond stalks of Permian tree ferns
30. Permian tree fern details
31. Kinky fossils
32. Peculiar chert sample from Doehlen Basin
33. Fossil plant cuticle as easy crack path
34. "Maggot stones" reconsidered
35. Maggot ferns from Sardinia and Saxony - surprisingly similar and different
36. Eerie shapes athwart microbial layer stacks (4)
37. Eerie shapes athwart microbial layer stacks (5)
38. Eerie shapes athwart microbial layer stacks (6)
39. Deep-red Psaronius from the Doehlen basin
40. Red chert offering fossils and fancy artwork
41. Real and illusory cracks in red Permian chert
42. Uronectes in translucent chert
43. Red Permian cherts with freshwater stromatolites
What one piece of red chert can reveal
Palaeozoic microbes in chert
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