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David in Japan

Ammonites and various invertebrates from Hokkaido (japan)

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David in Japan

Few month ago, an ammonite hunter from Hokkaido came to Mifune Dinosaur Museum in kumamoto prefecture to exhibit part of his collection.

I had the occasion to take picture of his collection and as I promised on an other thread to put some picture of it, I created this post.

 

I hope you will enjoy the pictures.

 

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From left to right: Jimboiceras sp., big Sharpeiceras frag, Anagaudryceras sp., Anapachydiscus sp., Mesopuzonia sp., Eupachydiscus sp.

 

 

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From left to right: Eupachydiscus sp., Desmoceras sp., Damesites sp., Hauericeras sp., Kitchinites sp., Metaplacenticeras sp., Anagaudryceras sp., Baculites + Yubariceras sp., Menuites sp., Neophiloceras sp., Mesopuzosia sp., Tetragonites sp.

 

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From left to right: Menuites sp., yubariceras sp., urchin, Araucariaceae leaf, ammonite indet. fragment, Gaudryceras sp., fossil wood with shipworms, Ammonite's trace fossil, Polyptychoceras sp. 

 

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Gaudryceras sp.

 

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Damesites sp

 

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Fruitbat

We don't get to see very many nice collections from Japan, even though Japan has a pretty extensive array of ammonites (obvious from your post). Thanks for posting!

 

-Joe

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David in Japan

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Brachiopods, limpets, Inoceramus, bivalves, Inoceramus balticus, Inoceramus schmidti, Inoceramus, Urchin, limpets, bivalve with predatory mark, Inoceramus, gastropods.

 

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phyllopachyceras sp., Damesites sp., Shark vertebrae, various ammonites, Mesopuzosia sp., Gaudryceras sp., Yubariceras sp., Menuites sp., Inoceramus.

 

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Urakawaites sp., Kitchinites sp., Ezoceras sp., Menuites sp., Eubostrychoceras muramotoi, Menuites sp., Gaudryceras sp., Menuites sp., Unknown ammonite fragment, Texanites kawasaki, Kossmaticeras sp., Otoscaphites sp., Scalarites sp., Romaniceras sp., Tetragonites sp., Otoscaphites sp., Baculites sp.

 

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Muramotoceras sp., Scalarites sp., Baculites sp., huge Polyptychoceras fragment, Ezoceras sp., Nipponites sp., Hyphantoceras sp., various ammonites, Eubostrychoceras sp., Mariella sp., Neocrioceras sp., Polyptychoceras sp.

 

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Eubostrychoceras sp., ammonites and gastropods, bivalves, crabs, gastropod, Menuites sp., gastropods, Ginkgo leaf, Araucariaceae wood, Unknown plant (sea weed?), ammonite and gastropod, Aptychii.

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David in Japan

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Neophylloceras sp., big ammonite's growth ring., Fortipecten takahashii, big ammonite's growth ring., Eupachydiscus sp., Polyptychoceras sp.

 

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Scalarites sp., bivalves, Nanonavis sakhalinensis, Gaudryceras hamanakense, Urchin, leaves.

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David in Japan

Next are some ammonites close up.

 

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David in Japan

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David in Japan

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END

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David in Japan
44 minutes ago, Fruitbat said:

We don't get to see very many nice collections from Japan, even though Japan has a pretty extensive array of ammonites (obvious from your post). Thanks for posting!

 

-Joe

You are welcome. I agree with you even if there are lots of beautiful fossils in Japan, it is difficult somehow to see it or get access to information about it.

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FossilDAWG

That is an amazing collection!!  :faint:  :drool:  :wub:

I've long dreamed of collecting on Hokkaido, though I doubt that will ever happen.  It's interesting to see the similarities between the Hokkaido fauna and the Nanaimo Group in British Columbia, though the Hokkaido fauna is much more diverse.

 

Thanks for showing this to us.

 

Don

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Tidgy's Dad

Beautiful, a simply marvelous collection of specimens that we rarely get to see. :wub:

Some of those ammonites, especially some of the heteromorphs are astonishing. 

Thank you so much for sharing, David. :)

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David in Japan
1 hour ago, FossilDAWG said:

That is an amazing collection!!  :faint:  :drool:  :wub:

I've long dreamed of collecting on Hokkaido, though I doubt that will ever happen.  It's interesting to see the similarities between the Hokkaido fauna and the Nanaimo Group in British Columbia, though the Hokkaido fauna is much more diverse.

 

Thanks for showing this to us.

 

Don

You are welcome. I didn't know for the nanaimo group. I think i will have to do some homeworks and dig into some books. If you go to Hokkaido, let me go with you. I want to go there too. I can be useful concerning japanese language and I also make coffee :D

 

1 hour ago, Tidgy's Dad said:

Beautiful, a simply marvelous collection of specimens that we rarely get to see. :wub:

Some of those ammonites, especially some of the heteromorphs are astonishing. 

Thank you so much for sharing, David. :)

Thank you.

 Indeed fossils from hokkaido are awesome and so well preserved. I will try to fight my laziness and to post more regularly pictures and posts about japanese fossils and fossil hunting trips in the future.

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Tidgy's Dad
Just now, David in Japan said:

You are welcome. I didn't know for the nanaimo group. I think i will have to do some homeworks and dig into some books. If you go to Hokkaido, let me go with you. I want to go there too. I can be useful concerning japanese language and I also make coffee :D

 

Thank you.

 Indeed fossils from hokkaido are awesome and so well preserved. I will try to fight my laziness and to post more regularly pictures and posts about japanese fossils and fossil hunting trips in the future.

Look forward to them. 

Most interesting.

:popcorn:

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Ludwigia
5 minutes ago, David in Japan said:

 

 Indeed fossils from hokkaido are awesome and so well preserved. I will try to fight my laziness and to post more regularly pictures and posts about japanese fossils and fossil hunting trips in the future.

Well,you certainly weren't lazy with this post. Thanks for taking the trouble to translate the names of the species and for showing all those close-ups. That collector certainly does have a good faunal cross-section. I've never seen so many Japanese cretaceous species in one spot. Thanks very much for posting these and I look forward to more from you.

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Bobby Rico

Hi @David in Japan congratulations on your fantastic post. Some definite ammonite candy on show their. Also very well photographed. 

 

This  spiky little  bad boy is stunning and my favourite . If you find one of them on your trips I will look after it for you no problem. 

 

All the best Bobby 

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Tidgy's Dad

Very hard to pick a favourite. 

This one perhaps?

The fine ribbing is beautiful. :wub:

3 hours ago, David in Japan said:

Next are some ammonites close up.

 

20180403_101105.thumb.jpg.306e2fa2cfa143c93da38dc979fea434.jpg

 

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WhodamanHD

What a stunning diversity of cephalopods! It’s a shame they are not better known outside of Japan. Thanks for sharing!

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Wrangellian
On 5/21/2018 at 9:15 AM, David in Japan said:

You are welcome. I didn't know for the nanaimo group. I think i will have to do some homeworks and dig into some books. If you go to Hokkaido, let me go with you. I want to go there too. I can be useful concerning japanese language and I also make coffee :D

 

FIELD TRIP! Let's go!

 

I have seen Japanese ammonites along the way (like here and on ebay), but this is the most in one spot for sure. I've noticed the similarities between our Nanaimo Group here on Vancouver Island too. A lot of the same or related genera.

Love the old wooden display (drawers from a cabinet?)

 

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David in Japan
On 5/22/2018 at 1:28 AM, Bobby Rico said:

Hi @David in Japan congratulations on your fantastic post. Some definite ammonite candy on show their. Also very well photographed. 

 

This  spiky little  bad boy is stunning and my favourite . If you find one of them on your trips I will look after it for you no problem. 

 

All the best Bobby 

076CA80D-ED57-4FEA-A47A-61A4D87ABFB6.jpeg

 

I love this one too. I would love to find one but I will leave the preparation to you.

 

 

On 5/22/2018 at 3:27 AM, Tidgy's Dad said:

Very hard to pick a favourite. 

This one perhaps?

The fine ribbing is beautiful. :wub:

 

Agree, fine ribbing and simple design are the best.

 

 

On 5/25/2018 at 10:17 AM, Wrangellian said:

FIELD TRIP! Let's go!

 

I have seen Japanese ammonites along the way (like here and on ebay), but this is the most in one spot for sure. I've noticed the similarities between our Nanaimo Group here on Vancouver Island too. A lot of the same or related genera.

Love the old wooden display (drawers from a cabinet?)

 

Yes, it was a kind of antique cabinet drawers.

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Wrangellian

Many of the fossils look rather rough. I'm not sure if the preparation is a bit crude or difficult or the fossils are just like that. Any idea how long ago the prepping was done?

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David in Japan
1 hour ago, Wrangellian said:

Many of the fossils look rather rough. I'm not sure if the preparation is a bit crude or difficult or the fossils are just like that. Any idea how long ago the prepping was done?

I can't say for sure but I know the guy prepped the ammonites in the old fashion (small hammer and chisel) long time ago and that Hokkaido ammonites are found mainly in nodules. 

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Wrangellian
On 5/28/2018 at 9:10 PM, David in Japan said:

I can't say for sure but I know the guy prepped the ammonites in the old fashion (small hammer and chisel) long time ago and that Hokkaido ammonites are found mainly in nodules. 

That's what I suspected...

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Max-fossils

That is such cool stuff!!! Some of these bivalves are really weird. Especially the Nanonavis. And that Fortipecten is to die for!

Thanks for sharing :) 

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