Show Us Your Fossils Challenge Mode: Ordered By Geologic Time Period!

[JamieLynn]

@Kasia - that starfish is fabulous! 

[Kasia]

3 minutes ago, JamieLynn said:

@Kasia - that starfish is fabulous! 

Thanks - it's really tiny, though

[historianmichael]

Dunnicrinus mississippiensis (Calyx, Columnals, and Radicular Cirri)

Late Cretaceous Period

Prairie Bluff Chalk

Mississippi 

 

[JamieLynn]

wish I had some paleocene to post....I have LOTS of Eocene..... But I'm not jumping ahead!

[FranzBernhard]

Hurra, round two finished!

Standing:

@Pleuromya: 5 Points.

@Mochaccino: 4 Points.

@Kasia, @will stevenson, @JamieLynn, @historianmichael: 3 Points each.

Total number of contributors is 15 at the moment.

 

And ongoing with Paleocene!

Franz Bernhard

[Kasia]

Cyclocarya brownii, Paleocene, US

[Pleuromya]

For the Cretaceous, this is a slice of Maiasaura peeblesorum coprolite, from the Two Medicine formation of Montana. 

[Notidanodon]

I think we’re onto eocene here  

this is now known as brachycarcharias twiggensis 

[Pleuromya]

Sorry I just realised that my post earlier was completely out of place. When I made it, the most recent was Jurassic, I think it may not have loaded everything afterwards.

[Pleuromya]

This is from the rodent Heliscomys. From the Oligocene of Hernando County, Florida. 

[GreatHoatzin]

A tooth from good ol’ Carcharocles megalodon.

Miocene,

Pungo River Formation, North Carolina

[Pleuromya]

Pliocene Laevastarte (I think) bivalves from the Red Crag formation of Ramsholt, Suffolk. 

Edited October 26, 2022 by Pleuromya

[Paleorunner]

Tooth of Coelodonta antiquitatis. "Woolly Rhino"
from the late Pleistocene.
Qinggang Harbin - China.

 

[Pleuromya]

I'm beginning to run out of stromatolites to post now, but here is a stromatolite from the middle Archean Gindalbie formation of Kalgoorlie, Western Australia 

[GreatHoatzin]

Here’s another stromatolite, from the Meso-Archean, 3.02 billion years, but from the Cleaverville formation of Australia

[PR0GRAM]

Cambrian:

Paucipodia Inermis
Chengjiang, China.

 

[Wrangellian]

7 hours ago, GreatHoatzin said:

Here’s another stromatolite, from the Meso-Archean, 3.02 billion years, but from the Cleaverville formation of Australia

Technically not a stromatolite, but early life had a role in its production, producing the oxygen that caused iron to rust and be deposited as Banded Iron... so, close enough in my opinion! Nice piece.

[Wrangellian]

I have shown this before and I should try to get a better pic, but here is my Discophyllum berberum, Upper Katian/Lower Rawtheyan (Upper Ordo.), Uppermost Ktaoua Fm, Erfoud/Tafilalt (Anti-Atlas Mtns), Morocco. If that info is correct/current - please correct me if it's not, anyone.

 

 

Edited October 27, 2022 by Wrangellian

[Pleuromya]

Eurypterus tetragonopthalmus from the Silurian Ustya formation of Velykozalissya, Ukraine. 

[Notidanodon]

Onto the Devonian, a head shield

[Yoda]

15 hours ago, FranzBernhard said:

Hurra, round two finished!

Standing:

@Pleuromya: 5 Points.

@Mochaccino: 4 Points.

@Kasia, @will stevenson, @JamieLynn, @historianmichael: 3 Points each.

Total number of contributors is 15 at the moment.

 

And ongoing with Paleocene!

Franz Bernhard

Points for contributions in this thread ?? 

I have posted various items ?? 

[Ludwigia]

1 hour ago, Yoda said:

Points for contributions in this thread ?? 

I have posted various items ?? 

 

You have only posted 1 item since the contest began and Franz is just posting the leaders.

[Mochaccino]

For the Mississippian, a Pentremites tulipaformis blastoid from the Glen Dean Fm. of Kentucky, USA. These blastoids not only preserve the brachioles but also color patterning, which is thought to reflect their coloration in life.
 

Edited October 27, 2022 by Mochaccino

[rocket]

nice small Meisenheimichthyes from Pfalz-Region, Permian, approx. 5 cm long

[Pleuromya]

This is a tooth from the shark Rhomphaiodon minor. It is Triassic, Rhaetian, from Aust Cliff in Gloucestershire, UK.  

Edited October 27, 2022 by Pleuromya