Trilo ID Yunnan China

[rocket]

From an old collection we got this strange Trilobite. I think it was found and imported to Germany around 1980 - 1985.

Should come from Yunnan-Province in China (I only know it comes from china, did some research in the net and think it is a Yunnan-one).

Lenght is around 18 cm (7"). Has short spines at the end of the pleural segments. The cephalon has been badly prepared, surface is a bit destroyed but the rim fits. Pygidum looks rounded, but under a microscope I could see, the end is not prepped and under the surface. Will do the work on it next time...

What do you think about the genus? Before I start the prep-work I love to know if it has spiny ends, Looks not easy to prep...

thanks for comments!

 

[daves64]

Looks like it was prepped with a meat cleaver.. 

[piranha]

The current classification is Asaphopsoides yongshunensis.  It was previously classified Xiangxiia yongshunensis.

Peng 1990 reclassified it as a junior synonym of Asaphopsoides.  Here is an articulated specimen in my collection.

 

 

Asaphopsoides yongshunensis 9" (23cm)

Lower Ordovician - Yinchufu Formation

Yongshun County, Hunan Province, China

 

Peng, S.C. 1990

Trilobites from the Panjiazui Formation and the Madaoyu Formation in Jiangnan Slope Belt.

In: Tremadoc Stratigraphy and Trilobite Faunas of Northwestern Hunan (China).

Beringeria, Würzburger Geowissenschaftliche Mitteilungen, 2:55-171

[rocket]

42 minutes ago, piranha said:

The current classification is Asaphopsoides yongshunensis.  It was previously classified Xiangxiia yongshunensis.

Peng 1990 reclassified it as a junior synonym of Asaphopsoides.  Here is an articulated specimen in my collection.

 

 

Asaphopsoides yongshunensis 9" (23cm)

Lower Ordovician - Yinchufu Formation

Yongshun County, Hunan Province, China

 

Peng, S.C. 1990

Trilobites from the Panjiazui Formation and the Madaoyu Formation in Jiangnan Slope Belt.

In: Tremadoc Stratigraphy and Trilobite Faunas of Northwestern Hunan (China).

Beringeria, Würzburger Geowissenschaftliche Mitteilungen, 2:55-171

 

wow, thanks a lot. This might fit and will help while prepping it. Unusual spines at the pygidium, very interesting.

I will update when I finished the prep, think it will not before October or November. Many other dead animals in my hospital 

[rocket]

1 hour ago, daves64 said:

Looks like it was prepped with a meat cleaver.. 

, yes, looks like..., this trilo has defintive headache after this way of killing the cephalon

but, I think I can rescue it

[Xue]

It doesn't come from Yunnan.It‘s from western Hunan.It calls Asaphopsoides yongshunensis，but we like to call it pancake