Carboniferous echinoid from a Jurassic limestone. Lovenechinus, UK

[TqB]

Lovenechinus lacazei (Julien)  (most likely this species but I'm not sure if there's really enough diagnostic detail).

 

Lower Carboniferous, probably Tournaisian.

 

Very rare anyway but of especial interest as it is from the Jurassic Doulting Stone (Bajocian, Inferior Oolite) of Somerset, UK. This is a limestone full of Carboniferous detritus, formed when the Jurassic sea was washing up against the Mendip Hills Carboniferous high ground.

 

(Just acquired via a dealer from an old collection that included Carboniferous coral and crinoid fragments from the same location. No other echinoids though!)

 

2.3cm across

 

[The Amateur Paleontologist]

That's quite cool! Carboniferous fossils in Jurassic limestone  I also like the explanation for how that happened.

The fossil itself is also pretty nice

-Christian

[ricardo]

36 minutes ago, TqB said:

Lovenechinus lacazei (Julien)  (most likely this species but I'm not sure if there's really enough diagnostic detail).

 

Lower Carboniferous, probably Tournaisian.

 

Very rare anyway but of especial interest as it is from the Jurassic Doulting Stone (Bajocian, Inferior Oolite) of Somerset, UK. This is a limestone full of Carboniferous detritus, formed when the Jurassic sea was washing up against the Mendip Hills Carboniferous high ground.

 

Very interesting... a good example for a classic expression “ The present is the key to the past” . Thanks for show it.

 

Ricardo

[Innocentx]

Nice! Is the material on the outside edges(left and right sides) part of this echinoid or algal growth?

[Tidgy's Dad]

I went collecting around Doulting a couple of times, but never found anything like that! 

Wow! 

Great acquisition. 

[TqB]

16 hours ago, The Amateur Paleontologist said:

That's quite cool! Carboniferous fossils in Jurassic limestone  I also like the explanation for how that happened.

The fossil itself is also pretty nice

-Christian

Thanks! It surprised me when I researched it.

 

16 hours ago, ricardo said:

 

Very interesting... a good example for a classic expression “ The present is the key to the past” . Thanks for show it.

 

Ricardo

Absolutely, thank you!

 

15 hours ago, Innocentx said:

Nice! Is the material on the outside edges(left and right sides) part of this echinoid or algal growth?

Thanks! It's just the ambulacral rows of the echinoid, rather weathered. You can make out the pore pairs.

 

15 hours ago, Tidgy's Dad said:

I went collecting around Doulting a couple of times, but never found anything like that! 

Wow! 

Great acquisition. 

Thanks, Adam! Did you find corals/crinoids or anything? I've never been though we've often stayed nearby, around Glastonbury. Next time...  

[Tidgy's Dad]

2 hours ago, TqB said:

Thanks! It surprised me when I researched it.

 

Absolutely, thank you!

 

Thanks! It's just the ambulacral rows of the echinoid, rather weathered. You can make out the pore pairs.

 

Thanks, Adam! Did you find corals/crinoids or anything? I've never been though we've often stayed nearby, around Glastonbury. Next time...  

Mainly bivalves and ammonites from the Jurassic if I recall correctly. 

I'll have to check my records. 

[Missourian]

Fossil fossil. Fossil fossil? Fossil fossil!

[Ludwigia]

Quite a conversation piece. Nice acquisition!

[Jaimin013]

Nice find!

[Plantguy]

Mighty cool. Congrats on the addition. Regards, Chris