Please Show Us Your Very Large American Palaozoic Nautiloidea

[Ludwigia]

Hello,

A colleague of mine in Germany finds it hard to believe that Ordovician Nautiloidae could reach sizes up to 11 meters(that's about 35'), which claim he found on a website on the subject.

I know you find a lot of those things in the layers over there and he'd be interested to see some pictures of or links to large finds of that kind. Perhaps the international members also have some information on the subject?

Best wishes, Roger.

[pleecan]

A few year back while I was at Carden Quarry (now closed to collectors) (Ordovician ) ... saw a cephalopod the 2/3 size a small volkswagon ( wished I had a camera then) .... the quarry people was using it as a marker stone as not to drive off the edge of the quarry..... yes the creature can be very big.

PL

[Ludwigia]

A few year back while I was at Carden Quarry (now closed to collectors) (Ordovician ) ... saw a cephalopod the 2/3 size a small volkswagon ( wished I had a camera then) .... the quarry people was using it as a marker stone as not to drive off the edge of the quarry..... yes the creature can be very big.

PL

Thanks Peter. I'd already checked out the Forum for info and have read your report about that one already. Yes, they were big. If you take one of those huge cretaceous Ammonites, the largest of which is almost 3 meters in circumference, and unroll it, then you're looking at a length of around 10-12 meters! I'm still hoping for a few good descriptions or photos, even if they're in Situ shots.

Best wishes, Roger

[siteseer]

That doesn't mean nautiloids were that big as far back as the Ordovician. I'd always read that the largest Ordovician ones were more like 8 feet long (under 3m).

If you take one of those huge cretaceous Ammonites, the largest of which is almost 3 meters in circumference, and unroll it, then you're looking at a length of around 10-12 meters! I'm still hoping for a few good descriptions or photos, even if they're in Situ shots.

Best wishes, Roger

[Ludwigia]

That doesn't mean nautiloids were that big as far back as the Ordovician. I'd always read that the largest Ordovician ones were more like 8 feet long (under 3m).

You're right of course. That was just an example to keep the possibilities open. Most of the references found verify even larger specimens. But 11 meters??? That was a reference to Cameroceras.

http://www.tonmo.com/forums/showthread.php?3684-Images-Reconstructions-of-Ammonoids-and-Nautiloids

Best wishes, Roger

[siteseer]

It would be great to see evidence of a nautiloid bigger than three meters. Even at just under three, those animals were the giants of their day.

You're right of course. That was just an example to keep the possibilities open. Most of the references found verify even larger specimens. But 11 meters??? That was a reference to Cameroceras.

http://www.tonmo.com/forums/showthread.php?3684-Images-Reconstructions-of-Ammonoids-and-Nautiloids

Best wishes, Roger

[Ludwigia]

It would be great to see evidence of a nautiloid bigger than three meters. Even at just under three, those animals were the giants of their day.

I'll let you know if I find any evidence