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Michael O'Regan
Hi again - two more finds from Seatown from last week picked up from the base of the Golden Cap  - I have what I think is a Tragophylloceras
IMG_20190830_112952.jpg  IMG_20190830_113535.jpg  IMG_20190830_113415.jpg   
And Androgynoceras..

IMG_20190830_112437.jpg  IMG_20190830_112553.jpg  IMG_20190830_112516.jpg 
Being relatively new to fossil collecting could someone please confirm this (or correct me if wrong 😊). Also would really appreciate any tips on how to clean and preserve both of these - the matrix on both doesn't appears to be inclined to crumble and seems quite robust but would like to keep it that way! 
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prep01
Firstly, you need to desalinate them and then glue and clamp the cracks, then you can prep them, but is the time and effort woth it for theses 2?
Colin Huller
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Michael O'Regan
Thanks very much Colin - will have to think about that! 
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Barrow Museum
Confirming your Tragophylloceras loscombi
.

The other, more evolute one with the more or less circular whorl cross section, is Androgynoceras.
They are found in the Davoei Zone of the Lower Pliensbachian,  which corresponds to the upper part of the Charmouth Mudstone Formation.

I collected some from the same beach 50 years ago, and apart from an initial washing in fresh water, they were never treated and seem stable.

I have one very like your last figured specimen, complete with the "star" shaped crack in the central nodular blob and I am about to experiment with infilling that side with resin and preparing it from the other side using an air-pen, in the hope that there is enough shell and in good enough condition to produce a good ammonite.  As you can see from your first Androgynoceras, it is normal for only the body chamber to be preserved in 3D;  the rest is crushed and often missing in beach finds.  Even the ones figured in the Palaeontological Association guide for Dorset Lower Lias fossils are only body chambers.
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Michael O'Regan
Thank you very much for the ID confirmation and the information - much appreciated. The final three images are actually of the same specimen from different angles so the one with the flattened central whorls looks to have settled on the larger one.
Thanks again, 
Mike. 
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