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

[JamieLynn]

@Ludwigia ---oopsie. I knew it was Pliocene and then my brain went to Pleistocene. I blame the virus I am currently fighting off..... hahhahah

[hemipristis]

Juvenile Woolly Mammoth lower jaw with 2 teeth, Pleistocene, Yakutsk, Siberia, Russia. Currently on display in my office. A great conversation starter!

[Pleuromya]

These are Waputikia algal strands from the Middle Cambrian Wheeler Shale formation of House Range, Millard County, Utah. The algal strands measure 8 mm. 

Edited February 20, 2023 by Pleuromya

[Tidgy's Dad]

Cornulites flexuosus cluster.

Etobicoke Creek, Ontario, Canada. 

Georgian Bay Formation, Late Ordovician. 

 

[Pleuromya]

I think this is the tabulate coral Thamnopora cristata, from the Silurian, Homerian Wenlock Limestone, found at Wren's Nest in Dudley, UK. It measures 30mm in height. 

Edited February 20, 2023 by Pleuromya

[Tidgy's Dad]

1 hour ago, Pleuromya said:

I think this is the tabulate coral Thamnopora cristata, from the Silurian, Homerian Wenlock Limestone, found at Wren's Nest in Dudley, UK. It measures 30mm in height. 

I agree with the id, I have a few from there myself.

Here is Leptaena acuticuspidata from the Early Devonian Birdsong Shale of Parsons, Tennessee.

[Pleuromya]

Just now, Tidgy's Dad said:

I agree with the id, I have a few from there myself.

Here is Leptaena acuticuspidata from the Early Devonian Birdsong Shale of Parsons, Tennessee.

Thank you. 

[Pleuromya]

This is the blastoid Pentremites godoni, from the Mississippian Paint Creek Formation of Floraville, Illinois. It measures 11mm across. 

[rocket]

nice, 35 cm Triodus (Sweetwater-Shark) from Pfalz-Region, SW-Germany

prepared with transfer-method on resin

 

Edited February 20, 2023 by rocket

[Ludwigia]

2 minutes ago, rocket said:

Triodus (Sweetwater-Shark) from Pfalz-Region

Is that from the Triassic?

[rocket]

58 minutes ago, Ludwigia said:

Is that from the Triassic?

no, a lovely permian one. Triodus occours from Carboniferous up to triassic, but this is a nice and rare one from upper permian age

 

there is a nice paper about Triodus from Pfalz-Region

Mitt-Pollichia_90_0019-0028.pdf

 

Edited February 20, 2023 by rocket

[Missourian]

Bump...

 

Triassic

Moenkopi Formation (bottom), Chinle Formation, Wingate Sandstone

Capitol Reef National Park, Utah, USA

 

 

 

[Ludwigia]

Sonninia (Euhoploceras) adicra (ø 11cm.) from the Middle Jurassic Early Bajocian discites zone at Mapperton, Dorset, GB.

 

[hemipristis]

4 hours ago, Missourian said:

Bump...

 

Triassic

Moenkopi Formation (bottom), Chinle Formation, Wingate Sandstone

Capitol Reef National Park, Utah, USA

 

 

 

Gorgeous terrrain!

[rocket]

15 hours ago, Missourian said:

Bump...

 

Triassic

Moenkopi Formation (bottom), Chinle Formation, Wingate Sandstone

Capitol Reef National Park, Utah, USA

 

 

 

 

wow, what a landscape. Reminds me to some of the Western-Movies I have seen when I was a child. Riding cowboys, trecks, gunfighters.. , long ago...

[Al Dente]

I think Cretaceous is next. Here are some ostracods from the Peedee Formation of North Carolina. Quite a few have been drilled by gastropods.

 

 

[rocket]

4 hours ago, Al Dente said:

I think Cretaceous is next. Here are some ostracods from the Peedee Formation of North Carolina. Quite a few have been drilled by gastropods.

 

 

 

are there gastropods assoziated with the ostracods? Interesting material

[Al Dente]

5 hours ago, rocket said:

are there gastropods assoziated with the ostracods?

Yes and no. Aragonite is not preserved here so no gastropod shells, but the occasional steinkern is found.

[siteseer]

This tooth has been identified as Periptychus, a genus within the family Periptychidae, itself connected to a group of Paleocene-Eocene hoofed mammals called condylarths.   The Order Condylarthra was proposed in the 19th century but in recent decades, some pelontologists have reassigned various condylarth groups to other groups.  It seems that "condylarth" has fallen out of favor with paleontologists as a technical term but many who specialize in early Paleogene mammals still find it useful in discussions because everyone knows the situation with it and the families it usually refes to.  Some condylarths might be ancestral to various modern ungulates but it appears the vast majority left no modern descendants. 

 

If we could see Peripthychus as a live animal, it would have looked vaguely familiar yet strange.. It had a body length of a medium-sized dog with a somewhat long head that might have appeared dog-like with a stocky body and rather short legs and 5-toed, hoofed feet.  It was a herbivore that might have dug for roots.  The genus appeared early in the Paleocene and became extinct sometime toward the end of the epoch.

 

Periptychus sp;

Paleocene

Nacimiento Formation

San Juan County, New Mexico

crown height 5mm.

 

 

Edited March 3, 2023 by siteseer

[Ludwigia]

Sycostoma bulbiformis (4cm. long) from the Eocene Lutetian at Fleury la Rivière in the Paris Basin.

 

[Ludwigia]

According to jpc, this jaw piece from Merycoidodon culbertsoni from the Oligocene Brule Formation at White River, Wyoming shows the lower molars m2&3.

 

 

[opalbug]

Aturia angustata
Miocene
Nye Mudstone

Lincoln County, Oregon

 

I found this partial concretion as is, just laying on a beach full of cobble.

 

Edited March 4, 2023 by opalbug

[Ludwigia]

@opalbug It's hard to tell, but is this a nautilus? If it's an ammonite, then it can't be from the Miocene, but I'm thinking Aturia, right?

[opalbug]

1 hour ago, Ludwigia said:

@opalbug It's hard to tell, but is this a nautilus? If it's an ammonite, then it can't be from the Miocene, but I'm thinking Aturia, right?

 

I thought that I said that it was an Aturia from the Miocene.

 

 

Edited March 4, 2023 by opalbug

[rocket]

1 hour ago, Ludwigia said:

@opalbug It's hard to tell, but is this a nautilus? If it's an ammonite, then it can't be from the Miocene, but I'm thinking Aturia, right?

I think with the position of the sipho its a nautilus. Nice preservation, love to see it from outside