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Hettangian Ammonites - Rarities From The Northern Calarious Alps


alsatites

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Here you see some ammonites from my collection.

I will start with different Alsatitidae ( Really rarities in my opinion)

post-9239-0-02991600-1345238652_thumb.jpgpost-9239-0-63581400-1345238730_thumb.jpgpost-9239-0-39940300-1345238795_thumb.jpgpost-9239-0-84320200-1345238865_thumb.jpg

post-9239-0-22669300-1345238926_thumb.jpgpost-9239-0-84383600-1345239033_thumb.jpg

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Similarly well-preserved specimens are known from South America, and East Timor. I would love information on whether these species are found in other countries.

If you like to see other hettangian ammonites and some details, please visit my homepage: www.neoammoniten.jimdo.com

Many thanks

Peter

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These are lovely :wub:

Earliest Jurassic...did some exist also in the latest Triassic?

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Peter... Splendid specimens, they really are... and looking forward to seeing more of your finds being posted :)... The link to your website didnt work for me for some reason....I'm in north Somerset and you have probably seen the Psiloceras and Caloceras ammonites that have come from there...

post-1630-0-11496400-1345277756_thumb.jpg

you do find the odd 3D Caloceras on the Somerset coast....

post-1630-0-93304700-1345278366_thumb.jpg

Here's a north Yorkshire Psiloceras...

post-1630-0-11016500-1345278436_thumb.jpg

and a Holderness coast Caloceras...

post-1630-0-33503100-1345278460_thumb.jpg

a north Somerset Schlotheimia...

post-1630-0-60717000-1345278519_thumb.jpg

Cheers Steve... And Welcome if your a New Member... :)

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Beautiful ammonites!

Thanks for posting them.

Nice website, too.

Steve - here is the corrected Link .

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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_________________________________________________________________________________
"In every walk with nature one receives far more than he seeks."

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To all Visistors - Thank´s for the inspiring comments!

Auspex - There is described a Rhaetian Choristoceras in literature, but I can´t find it.

Steve - Excuse me, the Link was not complete - it is correct now. I watched your Album "Liassic ammonites" - this is the best, I have ever seen from England. I was several times in Dorset, my findings were mostly quite modest. But during my last visit, two years age, I found a fine cenoceras.

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post-9239-0-93353000-1345324758_thumb.jpg

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Your pictures are very nice. The Psiloceras are similar our german specimens from nearby Tübingen. Your Caloceras and Schlotheimia are fine -

The Somerset coast is obviously very interesting and worth a visit.

Peter

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Peter.... I have looked at your ammonite website... You have found some very rare specimens indeed... so rare infact I have not even heard of some... Congratulations on your collection....Thanks for viewing the album containing some of my shells... I hope to be prepping again in the near future and adding some new specimens to my collection...I have found plenty and I have a backlog of specimens to prepare too...

Dorset is never easy to find fossils with all the commercial collecting going on and the many hundreds of tourists up and down the beach but with persistence you have found a very nice nautilus...I certainly like the nautilus from the various beds...There has been a lot of movement of the cliffs recently in that area and the beach is closed to collecting at the moment so maybe later this year it could be well worth a visit...

The Somerset coast is certainly worth a visit although it is very hard to find complete specimens....often you find half an ammonite as the limestone is very naturally fissured...I can go collecting maybe 10 times and not even get my hammer out then litterally trip over something out of the blue... but thats what I want as my collection grows, the rarer specimens....obviously previous success on the coast helps and can point you in the right direction...

Here's some recent finds... (I just hope the link works)

www.thefossilforum.com/index.php/topic/30423-a-few-recent-finds/page__view__findpost__p__335087

I look forward to seeing more of your collection...

Cheers Steve... And Welcome if your a New Member... :)

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PS...'' The Psiloceras are similar our german specimens from nearby Tübingen''

I would very much like to see some of this material...

Thanks Steve

Cheers Steve... And Welcome if your a New Member... :)

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I have had a bit more to time to view your website pages now.... Some Psiloceras are pictured on there... Keep us informed of any new finds....Thanks...

Cheers Steve... And Welcome if your a New Member... :)

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Hello Ludwigia - the bavarian alps are Kurt´s area, I work im "Salzburger Land".

Hello Steve - here a link to a specialist from Baden-Württemberg with some Psiloceras from nearby Tübingen: http://www.kosmocera...ura-grenze.html.

I have only some comparative pieces from there, but they are not really attractive.

From the Alps I have something unprepared material, additional findings are not to be expected because of the difficult conditions of the locality.

I ask for patience, in the next few months I'll hardly have time to prepare something, but I don´t forget you.

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Peter....Cheers for the link I took a look, there are some really nice examples...Also thanks for your contribution to the forum... It has been good to see and compare your fossils to what I find and I look forward to seeing some more of them in the future...

Viewing the website reminded me of this one... its nice having the association with the Psiloceras planorbis, the larger shell is Psiloceras plicatulum ?I believe...

post-1630-0-96449300-1345535828_thumb.jpg post-1630-0-33186400-1345535847_thumb.jpg

Cheers Steve... And Welcome if your a New Member... :)

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Nice, unfortunately it is very hard to determine flat ammonites.

I have the same problem with my hettangian ammonites. One of the younger publications regarding hettangian ammonites from the american continent

(British Columbia) is http://www.ville-ge.ch/mhng/paleo/paleo-pdf/27-1/pal-27-1-12.pdf

But the fossils are flat too and I am not able to compare them with mine.

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Thanks for the paper.... I see what you mean regarding the difficulties involved with crushed shells... Good luck hunting....

Cheers Steve... And Welcome if your a New Member... :)

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These are lovely :wub:

Earliest Jurassic...did some exist also in the latest Triassic?

@auspex: Today science says no. It is commonly assumed that all "modern" ammonites(Orders:Ammonitida, Lytoceratida, Ancyloceratida) derived from members of the group Phylloceratida. Phylloceratida is the only Order of the upon mentioned Orders which had members in the late Triassic.

The earliest Psiloceras(like Psiloceras spelae) are descendents of these late Triassic ammonites. And they are assumed to be the ancestor of all later ammonites families.

But in the layer with Psiloceras spelae also "Rhacophyllites"(a long living triassic member of Phylloceratida) can be found together with Psiloceras.

So the question about the origin of the neo-ammonites is finally not solved in detail.

@Peter, very fine ammonites! They look familiar to me. post-2660-0-16160700-1346006908_thumb.jpg

Regards to the Bavarian neighborhood

Andreas

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  • 1 month later...

In August I visited some places in the Alps (Salzkammergut). Although searched over since twenty years, I found there a promising block. Unfortunately I had no camera. The hard stone enforced me to really hard work, but after a time all the parts were in my rucksack.

post-9239-0-65132100-1349631094_thumb.jpg

The preparation was complicated, because parts of the stone were several cm horizontal displaced trough tectonic activities.

The fissures was filled with white calcite.

Is a large "Alsatites proaries" (22 cm diameter), with an excellent centre.

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@andreas please excuse my late answer! I was in Italy - with a short trip to La Spezia, looking for hettangian Ammonites, but I had no success. Many thanks for your picture. Your hettangian collection seems to be very interesting, I look foreward to have a closer look on it.

Regards

Peter

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Peter.... Thats a beauty... Great prepwork too considering the jigsaw 3D jigsaw you faced with the displacement... Very impressed and thanks for sharing it...

Cheers Steve... And Welcome if your a New Member... :)

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