Oceans of Kansas Paleontology Links
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Links to OOK Paleontology Pages

Copyright 1996-2009 by Mike Everhart

Last updated 07/12/2009



06/28/2009  Protosphyraena gladius - Largest fish in the Western Interior Sea  - Until recently known only from its very large fins...

10/26/2008  Remains of young mosasaurs from the Smoky Hill Chalk -  It was a dangersous place to be born....

09/13/2008  Digging up a large turtle in the Fairport Chalk - Probable first collection of the skull of Desmatochelys lowii from Kansas.

09/10/2008  The brain and back of the skull of mosasaurs - A primer on the complicated anatomy....

07/13/2008   First polycotylid plesiosaur from the Fort Hays Limestone - (Early Coniacian) - Jewell County, Kansas.

04/27/2008   Baptornis advenus Marsh 1877, a marine bird from the western Interior Sea. (Smaller, more primitive than Hesperornis.

04/18/2008   A complete mosasaur skeleton - Osseous and cartilaginous. Osborne, 1899 - Early photographs of Tylosaurus proriger

06/27/04  Pycnodonts and Hadrodus - Rare smaller fish in the Cretaceous seas of Kansas.

06/19/04  One of the first papers written (Saint Fond, 1799) about the discovery of a mosasaur - A translation by Jean Michel-Benoit

02/05/04  Saurocephalus, Saurodon and Prosaurodon - "Sword-eels" of the Late Cretaceous sea.

12/31/03  Marine turtles from the Smoky Hill Chalk and Pierre Shale: Toxochelys, Protostega, Archelon and others.

11/23/03  Ichthyornis: "Fish-bird" of the Late Cretaceous   - One of the "birds with teeth" from the Smoky Hill Chalk.

11/08/03  First records of plesiosaurs from the lower Smoky Hill Chalk of Western Kansas - Recent publication by Mike Everhart

10/22/03  An Extinct Sea Lizard from Western Kansas - Charles Gilmore (1921) ePaper describing the Tylosaurus exhibit at the Smithsonian.

09/07/03  Permian Sharks of Kansas. Really cool... and important, recent discoveries of Permian shark remains by Keith Ewell.

09/01/03  Kansas Sharks: Identifications of lots of Kansas shark teeth: Some never reported from Kansas until now.   

 05/10/03  The discovery of  new bones for an old dinosaur from the Smoky Hill Chalk - Niobrarasaurus coleii

 04/18/03  Fourth Annual (2003) Kansas Academy of Science Paleontology Symposium Abstracts.

 03/21/03  How to collect vertebrate fossils - An 1884 article by Charles H. Sternberg.

 01/03/03  Revisions to the biostratigraphy of mosasaurs in the Smoky Hill Chalk -  An recent publication by Mike Everhart

 11/23/02   Dr. John H. Janeway, Surgeon, U. S. Army - Early Kansas paleontologist

 10/19/02   Protosphyraena.... a primitive swordfish from the Late Cretaceous

 10/15/02   The discovery of Elasmosaurus platyurus and the "head-on-the-wrong-end" mistake of  E. D. Cope

 10/11/02   ePapers regarding the first discovery and the naming of North American Plesiosaurs. Joseph Leidy - E. D. Cope

 08/28/02   Ctenacanthus Agassiz 1835 - A Permian Shark - Discovery of Ctenacanthus amblyxiphias in Kansas

 08/07/02   Russell Hawley Paleo-Art - Mesozoic Marine reptiles

07/15/02    Oceans of Kansas T-shirts - A brief history of Oceans of Kansas Paleontology as seen through our field T-shirts.

05/26/02   The discovery of a GIANT Ginsu (Cretoxyrhina mantelli) Shark in Western Kansas - BIG NEWS

04/08/02   Where the elasmosaurs roam: Separating fact from fiction:  (Recent publication in Prehistoric Times)

04/07/02   Tylosaurus nepaeolicus -  New data on cranial measurements and body length (Recent publication)

01/26/02   ePapers on the Internet - Scanned versions of older paleontology papers dealing with Kansas fossils.

12/30/01  The Goldfuss Mosasaur - An English translation of this important 1845 work by Dr. August Goldfuss.

11/28/01  The other George SternbergMedical Doctor, U.S. Army General, U. S. Surgeon General, and fossil collector.

10/20/01   Plesiosaur stomach contents and gastroliths from the Pierre Shale  of Kansas - New publication

07/21/01  The New Jersey Paleontological Society 2001 Field Trip in Kansas - On the road again.........

06/19/01  Coprolites and fossilized gut contents - Trace fossils from the Smoky Hill Chalk Formation

06/04/01 Shonisaurus popularis - The Berlin Ichthyosaur State Park in Nevada -  Very large Triassic ichthyosaurs

01/15/01 Plioplatecarpus: A new genus of mosasaur from Kansas -  From the Sharon Springs Member of the Pierre Shale.

01/15/01 Clidastes propython -  An nice example of a small mosasaur from the Western Interior Sea (Kansas).

01/01/01 The dig of an early Tylosaurus prorigerAn extensive update of one of the original OOK pages - New pictures.

12/02/00 The origin of the dorsal fringe in mosasaurs; 1898 - Sometimes the experts made mistakes.

11/12/00 The jaw plate of a Ptychodus mortoni shark - Shell crushing sharks from the Smoky Hill Chalk

10/26/00 Mosasaurs - Last of the great marine reptiles - Mosasaur article published in Prehistoric Times

10/21/00 The Mosasaurus of Dr. August Goldfuss - One of the first mosasaur discoveries reported from the West.

Placodonts: The Bizarre 'Walrus-Turtles' of the Jurassic -  Contributed paper by Darren Naish

Anatomy of a Plesiosaurus Skull - An 1896 drawing is used to illustrate the bones of a plesiosaur skull.

The Denver Museum Plesiosaur - Pictures of Thalassomedon hanningtoni at the Denver Museum

Styxosaurus snowii - An elasmosaur exhibit at the South Dakota School of Mines and Technology

Prognathodon overtoni - A mosasaur skull at the South Dakota School of Mines and Technology

Take a look at the new pics on  the Dan Varner Paleo-Life Art Page

The Sam Noble Museum of Natural History and Paleo-life art by Karen Carr -   A new museum in Oklahoma

One day in the life of a mosasaur.... Paleo-fiction by Mike Everhart

Mesozoic Marine Monsters of Mangahouanga - New Zealand Mosasaurs and Marine Reptiles

Platecarpus tympaniticus - New pictures of the prepared skull from a 1996 dig.

Fossils from Antarctica - Pictures of fossils collected from Vega Island in 1999

South Dakota Mosasaurs - The collection of the South Dakota School  of Mines

Gastroliths?..... You mean they ate rocks?  Stomach stones from Kansas Plesiosaurs

A Very Large Plioplatecarpus from North DakotaCourtesy of John Campbell, NDGS

The type specimen of Halisaurus sternbergi, in Sweden!! - courtesy of Johan Lindgren

Published references about marine reptiles -  My collection of paleontology papers.


The 1999 Cincinnati Museum of Natural History Dig on a Kansas Plesiosaur

Mosasaurs from Sweden?   Click here to see where Johan Lindgren found them.

The Unofficial Virtual Tour of the new Sternberg Museum of Natural History

A virtual museum tour of mosasaur specimens from Kansas and around the U.S

Finding My First Mosasaur in South Dakota - In the Pierre Shale with the Field School from the South Dakota School of Mines.

Abstracts of Publications by Mike and Pam Everhart

.A Moment in Time - Evidence of Shark Predation on Mosasaurs - Watch for "Ancient Sharks" on  TLC's Paleoworld)

One Day in the Western Interior Sea.....Life could be very short for the unwary.

Illustrated....A Field Guide to Fossils of the Smoky Hill Chalk - Part 1 - Invertebrates and Fish

Illustrated....A Field Guide to Fossils of the Smoky Hill Chalk - Part 2 - Reptiles and Birds

A Dig for a Giant Pteranodon - Western Kansas - 1996 - The find of a young male Pteranodon with a 20' wingspread.

UPDATED 11/30/98 Martinichthys - The Mystery Fish of the Smoky Hill Chalk - These strange fish didn't leave much for us to find.... only their 'noses'

Another Recent Mosasaur Discovery!!! Lots of Photos of a Platecarpus planifrons from the Smoky Hill chalk. Check back for an update on the pictures of this unique specimen.

Globidens sp.; The Discovery of a Rare, Shell Crushing Mosasaur from the Pierre Shale of Kansas The page now includes the only known published photos of the type specimen of Globidens dakotensis in the Field Museum, Chicago, IL.

The Earliest Record for Clidastes sp. (Mosasaur) - A New York teenager finds the earliest documented record of a   Clidastes liodontus in the Smoky Hill Chalk of Western Kansas

We Finally Complete the Dig of the big Tylosaurus proriger - A New Record for a Very Large Mosasaur - Reported at the 1997 Society of Vertebrate Paleontology meeting in Chicago

Platecarpus tympaniticus -The 1996 dig of the shark scavenged remains of a 20' mosasaur from the Smoky Hill Chalk.  New pictures added 01/30/00.

The First Discovery of a Mosasaur - Digging up a huge mosasaur skull..... Mosasaurus hoffmanni  - found underground in a mine in 1770!

Linking the Past with the Present -  Re-publishing Samuel W. Williston's 100 year old mosasaur drawings from The University Geological Survey of Kansas on the web.

Something about Plesiosaurs - Plesiosaur remains are relatively rare and their skulls are even harder to find.

Something about Pliosaurs  - Remains from these "short-necked" plesiosaurs have been found in Kansas and include one species with a 5 foot long skull!

The New Jersey State Museum Plesiosaur - The dig of a large Styxosaurus elasmosaur from the Pierre Shale of Western Kansas in 1991-92.

We complete the New Jersey State Museum Plesiosaur Dig: 1992 - The New Jersey State Museum field crew returns to finish the dig of a large Styxosaurus elasmosaur from the Pierre Shale of Western Kansas.

"We Dug Plesiosaurs" - A 1998 plesiosaur dig in the Pierre Shale of Western Kansas with the field crew from the Cincinnati Museum of Natural History.

Cretoxyrhina mantelli......The Ginsu Shark   - The "Jaws" of the Late Cretaceous oceans. It sliced and diced!

More evidence of Cretoxyrhina mantelli feeding on mosasaurs - Parts and Pieces

Cretoxyrhina mantelli and Squalicorax falcatus - Many large and hungry sharks swam in the shallow sea that once covered Kansas. Here are some pictures of the teeth of these sharks.

Ptychodontid sharks - Strange, "pavement-toothed", shell-crushing sharks from Cretaceous deposits of Kansas (and from England)

A "Just for Fun" photographic tour  of my early days and finds in the chalk. From a fossil fish, a shark and a couple of mosasaurs in the 1970's to lots of interesting things in the 1980's.

The new "Bunker Mosasaur" Exhibit - at the University of Kansas Museum of Natural History.  The remains of a huge Kansas Tylosaurus proriger go on display ninety years after they were discovered!  (As seen on Paleoworld)