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

[Ludwigia]

From the Miocene Burdigalian at the Lake of Constance: The appropriately named Amusiopecten burdigalensis.

 

[Paleorunner]

[Coco]

Wonderful !

 

Coco

[Paleorunner]

Gibberulus albus. Pleistocene.
Hurghada - Egypt.

 

 

 

[PR0GRAM]

Kimberella Quadrata - Ediacaran

White Sea Region

*corrected word use “Formation” to “Region”

Edited July 17, 2022 by PR0GRAM

[Mochaccino]

7 hours ago, PR0GRAM said:

Kimberella Quadrata - Ediacaran

White Sea Formation

Very nice! I've recently been wanting to get a good Ediacaran, either Dickinsonia or Kimberella. Tribrachidium probably a bit too pricey for me at this point.

 

@Paleorunner Very nice gastropods, I especially like that Strombus, such a clean and detailed specimen!

 

@Ludwigia Amusing for sure, what are those patterns on the shell? Are they native or traces of some epifauna?

 

@siteseer That oligocene Dapalis fish and leaf plate looks great. The fish looks like it was just recently dried!

Edited July 17, 2022 by Mochaccino

[Mochaccino]

For the Cambrian, a 1.5 cm section of radiodont grasping appendage from Yunnan, China. It was sold as "Anomalocaris" and exhibits clear preservation of the ventral spines as well as those spines' auxilliary spines. To me it bears at least some superficial resemblance to "Anomalocaris" kunmingensis (https://www.researchgate.net/figure/Anomalocaris-kunmingensis-sp-nov-from-the-Guanshan-biota-Yunnan-China-a_fig2_257689210), which I've been informed on this forum has recently been described as possibly a member of Amplectobeluidae rather than Anomalocarididae, but currently its assignment seems inconclusive. But who knows if this specimen is even A. kunmingensis. In any case, a very nice fossil in my opinion with beautiful preservation and coloration. Just wish I had a better camera than my phone.
 

 

Edited July 17, 2022 by Mochaccino

[Ludwigia]

1 hour ago, Mochaccino said:

Amusing for sure, what are those patterns on the shell? Are they native or traces of some epifauna?

Native.

[Paleorunner]

Encrinurella insangensis. Ordovicio.
Formación shihtian. Yunnan - China.

[Ludwigia]

The graptolites Diplograptus sp. (vertical) and Monograptus sp. (horizontal) from the Early Silurian Llandoveryium at Coal Pit Bay, Northern Ireland.

 

[Paleorunner]

Harpex perradiatus. Eifelian Devonian.
Hamar Laghdad - Morocco.

 

 

 

 

 

 

[FossilNerd]

Neat thread. I’ll jump in. 

Pentaramicrinus sp.

Carboniferous (Mississippian) 

Bangor Limestone- Alabama, U.S.A.

 

 

[Missourian]

Adelophthalmus sp.

Wyandotte Formation, Pennsylvanian

Johnson County, Kansas, USA

 

[siteseer]

I can pop in with this unidentified amphibian toe bone from the Early Permian of a site in Clay County, Texas.  It's about 9mm long.

[Ludwigia]

Hypocladiscites subornatus from the Middle Triassic Karnian at Vordersandling Alm, Millibrunnkogel, Upper Austria.

 

 

[Ludwigia]

Ophiopetra lithographica from the Late Jurassic Tithonian at Hienheim, Bavaria, Germany.

 

[siteseer]

On 6/1/2022 at 3:01 PM, Crusty_Crab said:

Wow.. you actually have an Eryops claw. I still remember my Eryops Wildlife Treasury Card (or was it DinoCardz?). It still blows my mind that you can go out, find and own a piece of the real thing. 

 

Yes, there was an Eryops card in the Dinocardz (1992) set.

[siteseer]

Here's a crocodile osteoderm from the late Cretaceous Hell Creek Formation, Dawson County, Montana.  It's just over 2 inches long. 

 

It was collected by a member of the Franklin family who used to sell at Tucson in the 80's and 90's.  I was sorry to hear that the husband and wife (Harold and Delma) had since passed away when I met their son several years ago.  He was selling some of their leftover specimens.  Great people.

[siteseer]

This is a tooth of the species, Sphenodus lundgreni, one of the largest sharks of the Early Paleocene (the first few million years after the end-Cretaceous extinction that ended or thinned out many lineages of organisms, including sharks).  Sphenodus is a genus assigned to the extinct order, Synechodontiformes.  It has an odd chronologic range, appearing during the Jurassic and dying out by the end of the Paleocene.

 

S. lundgreni is one of the largest, if not the largest, species of the genus.  This tooth comes from an Early Paleocene site near Volgograd, Russia and has a crown height of 25mm.

 

[JamieLynn]

Eocene Palmwood of Texas (our State Fossil)

 

 

[siteseer]

Upper molar of Archaeotherium, an entelodont, from the Early Oligocene Brule Formation of Pennington County, South Dakota.  Entelodonts were pig-like in appearance and were related to pigs and peccaries.  Archaeotherium is known from the Late Eocene to the end of the Oligocene.  

 

The crown is about 10mm high, 27mm along the side of the jaw and about 27mm from the end of the root lobe to the top of the crown.

[siteseer]

Here's a specimen that was misidentified by a fossil dealer who listed it as Aleurodon.  It's actually an upper molar of Amphicyon, a large carnivoran of an extinct family, Amphicyonidae.  The wear on the tooth shows that the animal ate not only flesh but also bones.  It measures 27mm x 21mm.

 

Amphicyon sp.

Early Miocene

Suwannee River, Florida

[Ludwigia]

Astraea rugosa with operculum. From the Pliocene on Cyprus.

 

 

 

[JamieLynn]

@Ludwigia - that is BEAUTIFUL. 

 

Pleistocene Skull of a Turtle perhaps? Not exactly sure of ID.

Texas Coast

 

 

[Wrangellian]

OK, my turn. Something from the Ediacaran Doushantuo Fm of Guizhou, China. It might be Longfengshania elongata (alga).