1 - This piece i believe is Recrystallised sponge.
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5 - This larger piece i believe is recrystallized Coral.
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9 - The pieces seem to be made up of Calcite, a lot of crystals are clearly visible.
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12 I now believe the crystals are part of an Aragonite recrystallisation process that basically involves the mineral soaking into the original limestone, and replacing it. 
1 This preserved leather was found by myself at a location on the banks of the river Leven, on the boarder of Cleveland and North Yorkshire.
2 - It has the same appearance and needle marks as previous preserved material I have found, in all of the deep beck valleys of south west Cleveland. HISTORY OF A BECK: Preserved leather
3 - As ive stated before I have no idea of the age of these pieces of preserved leather, but i am sure all are hand made and had ornamental stitching attached.
4 - Note the polished finish on the leather.
5 - This slate has been shaped and had a hole bored into it, again I have no idea of its age, I can only imagine it as some kind of fishing tool ?
6 - Note the wear marks toward the right as viewed.
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8 - The tool was found close to the leather although this in no way links them i.e. the leather could have travelled far, the stone probably not far.
1 The red outline marks the preserved Triassic sand ripples
2 The white outline shows one of the preserved Triassic sand ripple sections.
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4 Mercia mudstone above the sand ripple fossils
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6 The sand ripple fossils seem to run in a west to east direction although I can not be totally sure, as I had no compass.
7 - The river has cut through the sand ripple layer many years ago but slabs can still be found in the river.
8 - The black outline shows the sand ripples exposed from the upper Triassic deposits, at least 5 metres in depth.
9 The yellow outline shows the excavated sand ripples to the left.
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7 - The larger piece has been discoloured by the river and weathering, and may even have a secondary mineral coating, but after breaking an under layer free I can say it is certainly Mercia mudstone.
8 - The examples in images 8 - 10 show Triassic fossil sand ripple marks from North America, I have not yet viewed a Triassic example from the UK.
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11- This image shows how the earth looked at the approximate time the sand ripples were made. 
1- The grey organic clay is outlined in red
2 - I could be wrong but I believe the deposits above the gravel bed are laminated. 
3 - Close up of the grey clay containing preserved organic material including Hazel nuts.
4 - The gravel bed is outlined in black, as with all other locations note how flat it is, and its depth averages 250 - 300 mm thick as at most other locations.
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6 - The gravel bed is outlined in black
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10 - The gravel bed is outlined in red with the grey clay containing preserved organic material outlined in black.
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