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Manticocerasman

Devonian - Jurassic combo

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Manticocerasman

The last 2 days where a little improvised fieldtrip, I itended to go only on saturday, but on the last minute I decided wit my girlfriend to leve on friday untyl saturday.

 

we left Fryday afternoon to the ardennes area, my first stop that I wanted to make was a recently reworked roadcut near Chimay, A friend of me found a few very nice Receptaculites neptuni at this location. I followed his instructiuns to get there and once at the spot in took only a few minutes to find the first fragments of the sponges and a few pieces of indetermined Orthocerids.

Although most of the site was already prospected by other people, after halsf an hour, I did find 2 very nice specimens of the Receptaculites neptuni.

IMG_20180216_165541.thumb.jpg.5e0dea7173682a0428385b2130f686ba.jpgIMG_20180218_101954.thumb.jpg.91e2da42b2e6a99c77b4621e3c657e22.jpg

 

After this site we went even further south and crossed the border to France where we found a little "auberge" to spend the night and have a decent supper.

 

in the morning we went to the area of Novion Porcien where a few abandoned quarry in the woods deliver Oxfordian fossils, mainly bivalves and gasteropods, but also Sea urchin spines and sea urchins. Although those last ones where a little harder to find we did get a coupel of complete Hemicidaris sp.

 

IMG_20180217_102349.thumb.jpg.72dc49d4ff8a892444cbfdb84a064d3f.jpgIMG_20180217_110938.thumb.jpg.8459559c137bc6a7320cf13e6fb9653d.jpgIMG_20180217_133056.thumb.jpg.c12aef0ee3b56d1bb310fba8b04fb236.jpg

 

 

On our way back home we stopped near Nimes in Belgium, again in Devonian deposits.

Her we went to an old roadcut in the forest where we could find small but beautifull trilobite parts from Asteropyge. most of the time only pygidium, but we did find 3 cephalons.

This was the last prospection of our little trip before getting back home with quite few interesting fossils.

 

IMG_20180217_153500_1.thumb.jpg.7bf7a2dba463f590583dcdafaf916801.jpgIMG_20180218_111934.thumb.jpg.330ff6b4462ae9f7adb95d6549f97eeb.jpg

 

 

it was a welcome change to my usual cephalopods :D

 

:ammonite01: Manticocerasman :ammonite01:

 

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minnbuckeye

Great finds!!!! I love your receptaculites  and have collected quite a few myself,  Ordovician, not Devonian. But that trilobite pygidium is so stunning! Have you ever found a whole one there?

 

Mike

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Manticocerasman
12 minutes ago, minnbuckeye said:

Great finds!!!! I love your receptaculites  and have collected quite a few myself,  Ordovician, not Devonian. But that trilobite pygidium is so stunning! Have you ever found a whole one there?

 

Mike

Sadly no, I havent seen a compete one there. but I got one with the thorax still attached.

I m cleaning up a few of thos fossils now. I'll update the post later with a few new pictures.

 

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Tidgy's Dad

Nice finds, I love the trilobite pygidium and the receptaculitids. 

There was an interesting thread on these later yesterday. 

Receptaculitids don't appear to be sponges or, indeed, algae. Still Problematica. 

And the genus "Receptaculites " is now restricted to the Devonian. 

 

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WhodamanHD

That pygidium is Epic! Love the spikes!

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Fossildude19

Great report and pictures, Kevin!

Glad you got out to make some good finds. :) 

Regards,

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oldtimer

Glad you and your wife got out and spent some time together hunting for fossils.

Sounds like a wonderful time. Love the spines on the Trilobite. Maybe the rest is under the matrix.

Will be looking forward to other pictures after a little prep.

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Ludwigia

Nice finds, Kevin. And great that you have a girlfriend who accompanies you.

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Jeffrey P

Congratulations Kevin and thanks for posting this report. That trilobite pygidium is spectacular and I love the Receptaculites. You're definitely educating me on the rich fossil resources of the region where you collect. 

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Jesuslover340

Going to echo everyone else...LOVE that pygidium! :wub:

Have complete ones ever been found in the area?

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Manticocerasman

Update on the fossils I cleaned up today.

 

1st the sea urchin, turned out to be a stunning Hemicidaris intermedia:

IMG_20180218_130709.jpg.c0ca3a5d1ce15feade60096e94ca1ee1.jpg

 

 

And for the trilobite remains: I got a realy nice plate with 3 pygidiums and a pygydium with thorax:

IMG_20180218_120520.jpg.7d12b4e35a53fa122ce7770ccfb355e1.jpg

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CBOB

Wow!  Those cleaned up really nice.  That trilo plate is stunning

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piranha

Heliopyge helios is the current name combination.  Richter & Richter established the type species: Asteropyge (Comura) helios

 

Richter, R., & Richter, E. (1926)
Beiträge zur Kenntnis devonischer Trilobiten, 4. Die Trilobiten des Oberdevons.
Herausgegeben von der Preußischen Geologischen Landesanstalt, 99:1-314 

 

Haas & Mensink established: Neocalmonia (Heliopyge) helios

 

Haas, W., & Mensink, H. (1970)
Asteropyginae aus Afghanistan (Trilobita). Asteropyginae from Afghanistan (Trilobita).
Abhandlungen der Mathematisch-Naturwissenschaftlichen Klasse, 1969(6):155-211

 

additional references:

 

Van Viersen, A.P., & Bignon, A. (2011)

Late Devonian (Frasnian) asteropygine trilobites from the Frasnes area, southern border of Dinant Synclinorium, Belgium.

Geologica Belgica, 14:109-128   PDF LINK

 

Bignon, A., & Crônier, C. (2014)

The systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida).

Journal of Systematic Palaeontology, 12(6):637-668   PDF LINK

 

IMG.jpg.96e3de35eb25a6927bea8e4b3f888c2e.jpg

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Manticocerasman

thx for the links Piranha ;)

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Wrangellian

Nice stuff! Oh to be able to collect in the Devonian and Jurassic in the same day.

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Monica

Like everyone else, I also love the trilobites, but that little urchin is indeed stunning!!!  Wow, oh, WOW!!! :drool:

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Manticocerasman
2 hours ago, Wrangellian said:

Nice stuff! Oh to be able to collect in the Devonian and Jurassic in the same day.

 

Although I live in a small country we are spoiled with al kind of different deposits.

I don’ t have a geological map here, but on a trip by car from 1 to 2 hours I can get to all kind geological areas where I could find fossils: Devonian, Carboniferous, Jurassic, late Cretaceous, Eocene, Oligocene and Miocene/Pliocene

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ynot

Nice finds. Nice trip report.

Thanks for sharing.

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DutchDinoDude

Nice finds!

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Wrangellian
14 hours ago, Manticocerasman said:

 

Although I live in a small country we are spoiled with al kind of different deposits.

I don’ t have a geological map here, but on a trip by car from 1 to 2 hours I can get to all kind geological areas where I could find fossils: Devonian, Carboniferous, Jurassic, late Cretaceous, Eocene, Oligocene and Miocene/Pliocene

Yo do have a lot of variety in that area. I could find some Oligocene and Pleistocene and within a couple hours drive, and possibly some Jurassic/Triassic and Carb but haven't yet investigated those older exposures to know how much I would get out of them, but nothing like what you have, in any case.

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nala

Wow!great finds!:)

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doushantuo

GREAT REPORT!!!!!!!!!!!!!!!!!!!!

Love thos pygidia!!

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