• Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up - it's free! You can also become a Supporter for just $50/year to remove all ads and gain access to our Supporters forum. Follow us on Twitter and Facebook for more cephy goodness.

Latton Quary, Wiltshire 6th Feb 2005

pocketmoon

Cuttlefish
Registered
Joined
Oct 24, 2004
Messages
25
Latton Quary, Wiltshire 6th Feb 2005

Field trip organised by the Cotswolds Water Park and friends

A muddy day but didn't lose any of the kids :smile:

A bit shiny - the pva mix was still wet on a couple of 'em







 

Phil

TONMO Supporter
Supporter
Joined
Nov 19, 2002
Messages
3,033
Fantastic specimens, pocketmoon. Thanks for posting them, but you've made me utterly jealous!

Any idea what species you have here? Is that prize specimen you have a Cadoceras?
 

pocketmoon

Cuttlefish
Registered
Joined
Oct 24, 2004
Messages
25
Phil said:
Any idea what species you have here? Is that prize specimen you have a Cadoceras?
I have some research to do :smile: I guess it's time to buy a book!

I have a few 'nodules' which are vague ammonite shaped, with a central short 'stalk' and an cracked eggshell like surface. Do you know if the eggshell-like surface is part of the preserved ammonite or just the nodule crust ?

cheers,

Rob J
 

Phil

TONMO Supporter
Supporter
Joined
Nov 19, 2002
Messages
3,033
I'm really not sure, Rob. Could be a very decayed mother-of-pearl outer shell layer but I couldn't be certain. Perhaps Kevin will be able to help?
 

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,442
It is likely just the nodule crust. If you can see impressions of ribs or some flakes of shell material it could be coming off the fossil inside. We get alot of septarian nodules around here, they are nodules with calcite crystals growing in a star pattern radiating from the center of the nodule. They form a cracked egg looking surface on the outside of the nodule, all the museums around here have them brought in by people thinking they are dinosaur eggs! usually any fossil inside is destroyed by the growth of the calcite crystals.


This is a Jurassic (Bajocian) Stemmatoceras (looks alot like some of those you found) the inner whorls have been destoyed by the calcite growth. The flat area in the center is the surface of a vein of calcite.
 

Latest Posts

Forum statistics

Threads
20,849
Messages
206,778
Members
8,460
Latest member
Gary T

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak


Top