Late Triassic ammonite from Guizhou, China

[atcg01]

Here are two plates from Guizhou province. They should be Protrachyceras sp. ammonites from late Triassic. 

 

First one:

 

Second front:

 

Second back:

 

 

Edited December 26, 2016 by atcg01

[Fossildude19]

Welcome to the Forum.  

Nice ammonites - thanks for showing us. 

Regards,

[atcg01]

Thanks Tim, I'm a rookie both to fossil collection and the forum. Hope to learn more knowledge and experience here and very happy to share the local fossils for reference. 

 

Cheers,

Feng

[sdsnl]

Welcome to the forum

 

Is there more of the ammonites under the rock in your last photo? Do you plan to prep it?

[atcg01]

Yeah, there're so many of them on the back side. I'm trying to learn how to prep fossils on youtube and hope one day can dig them out  . The matrix sandstone is not too hard anyway.

[sdsnl]

4 hours ago, atcg01 said:

Yeah, there're so many of them on the back side. I'm trying to learn how to prep fossils on youtube and hope one day can dig them out  . The matrix sandstone is not too hard anyway.

You could start with some small picks, or even sewing needles if the rock is not hard. I like sewing needles because they can get into small places, and it is very difficult to damage a fossil with them, when you use too much force on the wrong spot

[atcg01]

10 hours ago, sdsnl said:

You could start with some small picks, or even sewing needles if the rock is not hard. I like sewing needles because they can get into small places, and it is very difficult to damage a fossil with them, when you use too much force on the wrong spot

Many thanks for the advice. I'll get a sewing needle from my mom and start the practice this weekend .

[ynot]

A dental pick work well also.

[-Andy-]

I have never seen these before. Great pics!

[RJB]

Would love to see those others prepped out.  Looks rather promising.  Good luck.

 

RB

[andreas]

Welcome to the forum Feng!

 

I like your ammonoids! Very interesting. Any clue how old they are exactly? Ladinian or Carnian? Years ago I was in contact with a guy who worked for a season in the Triassic Wayao Member of the Falang Formation in the Guizhou Province. Today I think it is named Xiaowa Formation. Yours are Protrachyceras sp. or Neoprotrachyceras sp. That depends on the exact age.

Are there other species of ammonoids on these plates too?

 

regards Andreas