Dinosaur Fossil Friday

[digit]

Lesson learned--when something doesn't seem quite right, go to the source and check.

 

Some great images this week. I must be part T-rex as I hate pull-ups.

 

 

Cheers.

 

-Ken

[doushantuo]

"Lesson, it is always good to go to the actual paper than to trust even respected science writers."

the raison d 'etre behind all my posts

[Bobby Rico]

I missed out the Dimetrodon part of this post I don’t know how. What a creature.

one question do you think this guy’s hair is to regulate heat or attract a mate? 

[doushantuo]

[Troodon]

23 hours ago, Bobby Rico said:

I missed out the Dimetrodon part of this post I don’t know how. What a creature.

one question do you think this guy’s hair is to regulate heat or attract a mate? 

 

Alawys about mating....

[Tidgy's Dad]

On 4/7/2018 at 12:48 PM, Bobby Rico said:

I missed out the Dimetrodon part of this post I don’t know how. What a creature.

one question do you think this guy’s hair is to regulate heat or attract a mate? 

 

Batesian mimicry? 

[FossilSniper]

The Daspletosaurus upper right jawbone would be a lifetime's satisfaction for me. Truly a beautiful specimen-

 

I'll find one just like that one day, aha! 

[Troodon]

Thank you to everyone who contributed last week and appreciate all of the feedback provided.   Again participation by others is welcomed.

[Troodon]

Mary Mantell was born in 1799. She discovered this tooth which her husband, Gideon Mantell, suggested belonged to an ancient lizard he named Iguanodon. Her find sparked the discovery of dinosaurs. Courtesy of the NHM London.

 

 

 

The extraordinary "trident" trilobite Walliserops trifurcatus - one of three described species in this genus.  The function of the trident remains unknown ... and probably unknowable! Courtesy of ROM toronto

 

 

 

The left wing of Rhamphorhynchus muensteri, , the Zittel-Wing specimen, on display at the BSPG Munich

 

 

 

Megalonyx jeffersonii ungual phalanx manual digit III, Sloth Claw, from Nebraska, Late Pleistocene. Real specimen in white box and four casts

 

 

 

The amazing Camarasaurus sp. skull at the SMA with a few close ups of the skin and gingiva(?) on the lower jaw

 

 

 

Tupandactylus imperator,  courtesy of the CMNH early cretaceous Crato Formation, Brazil

 

 

 

Here's some amazing sauropod dinosaur tracks from the famous Jura Mountains, Switzerland with human for scale

 

 

[Troodon]

Interesting find in amber from the Dominican Republic, I believe it features a queen ant in the act of mating.

 

 

 

Jim Kirkland states that whereas, Moabosaurus and Mierasaurus are both Turiasaur sauropodfrom the Yellow Cat Mbr. Cedar Mountain. Fm.,  of Utah, Cedarosaurus shown below is a Brachiosaur

 

 

 

A couple of Kolopsis an extinct genus of diprotodontid marsupials from Australia and Papua New Guinea.  Miocene-Pliocene

 

 

 

Huge display of Machimosaurus at the museum in Brussels

 

 

 

Daeodon, the chompiest chomp beast that ever chomped, Denver Museum NS

 

 

 

The massive skull of Andrewsarchus: a 40 million year old predator, skull 83 cm long.   Eocene, Inner Mongolia

 

 

 

A Late Permian critter housed at the Iziko Museum - this absolutely gorgeous juvenile Gorgonopsian found in South Africa.

 

 

 

A vegetarian croc! This is Simosuchus, a Cretaceous crocodylomorph from Madagascar. With pug-faced jaws lined with herbivorous teeth, it’s one adorable reptile

 

 

 

 

In 2008, an 87-million-year-old praying mantis was found encased in amber in Japan. The mantis is the oldest ever found in Japan & one of only 7 in the world from the Cretaceous period. It was the 1st ancient mantis to be found with spines, clarifying its evolution

 

 

 

Predentary bone from the lower jaw of the Ceratopsian Pachyrhinosaurus from Pipestone Creek. It's a unique bone found only in the ornithischian dinosaurs that formed the bottom of the beak. In horned dinosaurs, the beak was narrow & curved for chopping through tough plants

 

 

 

Tooth of the eugeneodontiform "shark" (actually holocephalan) Anisopleurodontis pricei from the Pedra de Fogo Formation of north Brazil, Early Permian.  Gorgeous

 

 

 

 

[Troodon]

The Institute of Vertebrate Paleontology & Paleoanthropology in Beijing, the type material of the Middle Triassic erythrosuchid Guchengosuchus

 

 

 

Acanthichnus cursorius, an arthropod (insect?) trackway from the Jurassic of Massachusetts, USA

 

 

 

In late 2017, an exceptionally well-preserved praying mantis fossil embedded in a rock slab excavated from a site in northeastern Brazil, dating back 110 million-years-ago, was discovered and identified as Santanmantis axelrod

 

 

 

The left dentary of the Thornton Ceratopsian, Torosaurus. Look at all of those teeth!

 

 

 

Belemnite guard encrusted by the distinctive runner-like cheilostome bryozoan Herpetopora laxata from the Cretaceous Chalk of Norfolk

 

 

 

Bregmaceros albyi is a tiny (3.5cm) codlet (Gadiformes) similar to many living forms (e.g. B. atlanticus) found in tropical and subtropical waters throughout the world. Marecchia River, Rimini, Italy- Pliocene (~5-7 mya)

 

 

 

A rare monk seal tooth (Monachinae) from the Pliocene Goose Creek Limestone of SC-the first ever discovered at FollyBeach ! Resembles "Pliophoca" from the Yorktown Fm, Lee Creek Mine, NC. Newly donated to C of C NatHistory Museum info courtesy of Boesse

 

 

 

Telychian (Silurian) conodonts from the LaPorte City Formation of eastern Iowa

 

 

 

[Troodon]

Here's an eastern North American early jurassic dinosaur cast of the destroyed holotype specimen of Podokesaurus holyokensis. With the publication of Podokesaurus in 1911, Dr. Mignon Talbot became the first woman to ever name a dinosaur.

 

 

 

A gryposaurus notabilis skull for Loving the big honking nose on this duck-billed dinosaur at the Museum of Nature

 

 

 

Unknown pterosaurs from China , Shanghai Museum

 

 

 

This stunning array of 450 million-year-old Homotelus specimens was found in Oklahoma. The big question: do these fossil plates represent primal mating assemblages... or death pools brought on by shrinking tidal estuaries?

 

 

 

This is the type specimen of the short-necked plesiosaur Dolichorhynchops herschelensis, named after the small Saskatchewan town of Herschel, where it was found.

 

 

 

Specimens that changed the way we think - Richard Owen's collection of stunningly intricate and beautiful woodcuts, including the iconic Megatherium 'giant ground sloth

 

 

 

Pterodactylus antiquus now at the CMNH, AMNH exhibit

 

 

 

Stunning image of Cretaceous-era bird Confuciusornis from Liaoning in China

 

 

 

Holotype Microraptor zhaoianus from Liaoning china,  surprisingly flat.

 

 

 

[Troodon]

Coyote Buttes , Utah

 

 

Graben "trough" in Iran with distinct escarpment on each side caused by the displacement of a block of land downward

 

 

 

The Hill of Seven Colors in Jujuy, Argentina w/pigments acquired by the mineral that make up the sedimentary layers during geological process involving deposition of sea, lake & river movement

 

 

 

Howdy from the LowerJurassic strata of the KayentaFormation

 

 

 

Type section of Brushy Basin Member of the  Morrison Formationm. with Brushy Basin itself running up valley into Abjo Mrs. to north.

 

 

 

 

[Troodon]

Today is also Poo day 

 

A cross-section of the world's only known T. rex coprolite. The shattered bone fragments suggest that Trex did not chew, but rather shattered and swallowed a lot of bones while eating. The fact that the bone was not completely digested by the stomach acids is also interesting. Courtesy of Royal Sask museum

 

 

 

One of these is a coprolite (dinosaur poop) and the other is Cocoa Honey Bunches of Oats... can you tell which is which?

 

 

 

Cool fish coprolite in limestone courtesy of the Joggins Fossil Institute

 

 

Tyrannosaurus poo? In a cage must be concerned it will escape and hurt someone

 

 

 

A shark coprolite. This is about 55 million years old courtesy of NHM London.  

 

 

 

Coprolite from the Oligocene of Oregon

 

 

 

Yes there is poo in the UK

 

[Troodon]

On the lighter side

 

I always knew this was the case but confirmed by a Tweet by Horner:

 

"130 cases of Rainier Beer to construct the 1986 Rainier couch, Landslide Butte Camp on the Milk River. Left to right on the couch, Jack Horner, Bob Makela, and Horners father John! Our motto, “It takes a lot of beer to dig up a dinosaur""

 

 

 

 

[Bobby Rico]

A bit of fun looking back at Paleontology in its early days and the first ever dinosaurs sculptures exhibit in the would . The fantastic Crystal Palace Dinosaurs are a series of sculptures of extinct animals. very misguided to modern standards, housed in the London’ Crystal Palace Park. Commissioned in 1852 to accompany the Crystal Palace after its move from the Great Exhibition in Hyde Park, they were unveiled in 1854 . The sculptures were designed  by Benjamin Waterhouse Hawkins under the scientific direction of Richard Owen. 

 

 

The Ichthyosaurus in a pose like a sea lion on land

[Bobby Rico]

The Megalosaurus in a quadrupedal assemblage or canine style

[Bobby Rico]

Iguanodon with thumb spike for a nose horn

[Bobby Rico]

Teleosaurus And I have add a beauty fossil of for comparison Steneosaurus bollensis, Holzmaden Germany

[Bobby Rico]

Hylaeosaurus

 

[Pagurus]

Thanks for posting these sculptures and the vintage photos, Bobby. They are terrific.

[Bobby Rico]

Finally evidence that T.rex is still with us.

[Bobby Rico]

37 minutes ago, Pagurus said:

Thanks for posting these sculptures and the vintage photos, Bobby. They are terrific.

Your welcome A great place to visit. Glad you liked them

[Tidgy's Dad]

If non-avian dinosaurs hadn't become extinct :

 

And the real reason that they aren't :

[Malone]

3 hours ago, Bobby Rico said:

Finally evidence that T.rex is still with us.

Have you ever heard a mass of cicadas come up from the ground after approximately 17 years and sing or play in unison? It's a curious thing how groups of creatures will seek to harmonize. I thank you! My granddaughters will be thrilled to see these!

Edited April 13, 2018 by Malone
Wasn't finished