• Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are 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. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.

Fossil I.D. (non-ceph?)

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,444
I thought this was a cephalopod phragmocone so I took a picture of it. After further review I don't think it is, the septa, and what looked like the siphuncle do not have the right morphology. Anyone seen anything that resembles this, it is probably worn and showing a cross-section. I will be posting it to a paleo list in the near future, but thought I would give the folks on TONMO the first crack at it :biggrin2:

It is in Early Ordovician limestone.

 

Clem

Architeuthis
Registered
Joined
Apr 6, 2003
Messages
1,839
Hmmm.

Wild guesses: it almost looks like the tip of some vertebrate's tail, with ossified tissues running down the midline. Or a jaw with teeth dislodged from its sockets.

Whatever it is, it looks like there's plenty more of it locked in that matrix.

:?:

Clem
 

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,444
Clem, that would be fantastic if it were an Ordovician vertebrate, I think these rocks are a few million years to old for that though. If it is an animal it would have to an invert. I think plants are out too. :shock:
 

cthulhu77

TONMO Supporter
Registered
Joined
Mar 15, 2003
Messages
6,638
Hmm...I have seen cone snail shells that have been severely weathered look somewhat like that...how large was the object?
nice Estwing...my favorite too !!!
greg
 

Phil

TONMO Supporter
Supporter
Joined
Nov 19, 2002
Messages
3,033
Not sure at all Kevin. I thought it may have been a nautiloid too; the only other thing that I can think of that it vaguely resembles is an arm of a starfish.
 

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,444
Those are both some very good critters to ponder :biggrin2:

It was located in the southern House Range, west central Utah, from near the base of the informal light gray ledge forming member of the Ibexian (Lower Ordovician) Fillmore Formation. It is about 3/8" (10mm) wide and 2" (50mm) long.
 
Joined
Sep 25, 2004
Messages
397
I think it looks alot like some kind of simple vertebre (scuze my spelling) maybe it was the first vert? It could be anything though maybe even a foot os somekind lol! There is alot of weird stuff out there...
 

Architeuthoceras

Architeuthis
Staff member
Moderator
Joined
Nov 19, 2002
Messages
2,444
A Graptolite, Phyllograptus sp. from shale beds in the same formation. I dont know if graptolites got crushed in shale like some ammonoids, but most are just thin films like this.
 

Forum statistics

Threads
20,900
Messages
206,876
Members
8,476
Latest member
AndyR83

Monty Awards

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


Top