Chinese Eurypterid?

[Kikokuryu]

I purchased this as a supposed Silurian Megalograptus from Yunnan a while back. The seller gave me additional information that it came from the Devonian Cuifengshan Formation in Qujing, Yunnan, China. However, the genus Megalograptus is Ordovician in age.

 

I'm not really familiar with eurypterids, so maybe it's not even a sea scorpion. It certainly looks like some kind of invertebrate though. But maybe it's just indeterminate debris.

 

Image 1 - Measurement is in millimeters.

 

Image 2

 

Image 3

 

Image 4

[Mahnmut]

Hi Kikokuryu,

I find it difficult to tell what I see here- the reddish brown colour matches some eurypterid fossils, the morphology could in my eyes be explained as well as hackle fringes.

Maybe @Dean Ruocco has an idea?

Best Regards,

J

 

[pachy-pleuro-whatnot-odon]

Unfortunately, I'm afraid this might be a slickenside, a purely geological feature.

[Kikokuryu]

59 minutes ago, pachy-pleuro-whatnot-odon said:

Unfortunately, I'm afraid this might be a slickenside, a purely geological feature.

Ah well, you win some, you lose some.

 

Inverts have not been easy. At the very least, I'm more confident that these from Kunming, Yunnan are actual Cambrian animals. Probably a radiodont like Houcaris or cf. Anomalocaris?

 

[Dean Ruocco]

18 hours ago, Kikokuryu said:

I purchased this as a supposed Silurian Megalograptus from Yunnan a while back. The seller gave me additional information that it came from the Devonian Cuifengshan Formation in Qujing, Yunnan, China. However, the genus Megalograptus is Ordovician in age.

 

I'm not really familiar with eurypterids, so maybe it's not even a sea scorpion. It certainly looks like some kind of invertebrate though. But maybe it's just indeterminate debris.

 

Image 1 - Measurement is in millimeters.

 

Image 2

 

Image 3

 

Image 4

I bought one of these too, the seller has them miss labeled as mine is definitely a Eurypterid but belongs to some sort of Pterygotid not any megalograptids. Speaking of which I’ll post my collection of them tonight.