PaleoDiva

One of the coolest dinosaur displays at the @sdnhm #whydinosaurs #dinosaur #naturalhistorymuseum #fossils #paleontology

Yes, that IS a dinosaur butt print. Have a nice day! What you're looking at is the resting trace of an Early Jurassic theropod, showing the perfectly preserved impressions of the legs and an apple-sized butt print! Not only did this theropod crouch down, shuffle into a comfortable position, and rest in a bird-like pose, but it left impressions of thickened skin from around the buttocks (what we call the ischial callosity, or sitting pad), as well as marks from the tail, and even handprints. This specimen comes from Massachusetts and is at the Beneski Museum of Natural History - Amherst College. I discussed and featured this specimen in my book, "Locked in Time", and included another amazing cloaca (yes, really) in my latest book, "The SECRET LIVES of DINOSAURS", illustrated by Bob Nicholls Art.

It’s been a quiet week for us— and for good reason. This week, we lost a true legend. A man who made a deep and lasting impact on everyone who was lucky enough to know him: Jim Tynsky. Anyone who ever met Jim knows what a remarkable human he was. He was my personal hero, the person who inspired me to pursue what we love. His passion, kindness, and unwavering dedication touched countless lives—not only those who dig within the Green River Formation, but the entire world of paleontology. One of Jim’s greatest achievements was the discovery of the most complete Eohippus ever found in the Fossil Butte Member. That discovery etched his legacy into the halls of one of the most prestigious institutions in the world—the Smithsonian. Every person who walks through those halls will see the mark he left on science, his passion preserved forever. Jim, you will be missed by so many. Your influence, your mentorship, and your incredible life have shaped more people than you’ll ever know. Thank you for everything you gave to this world. Rest in peace, my friend. #legend #goat #greenriverformation

Deep in Colombia’s Serrania de la Lindosa, archaeologists have uncovered rock paintings dating back 12,000 years that may depict some of the Ice Age’s most remarkable megafauna. The murals illustrate creatures such as a giant ground sloth, a macraucheniid, a proboscidean, and a prehistoric horse, offering a rare glimpse into a world long vanished.

The paintings are vivid and precise, capturing the anatomy, posture, and even movement of these massive animals. They provide valuable insight into early human observation, artistry, and interaction with now-extinct species. These depictions also hint at the ecological environment of South America during the late Pleistocene, when humans and megafauna coexisted.

Beyond their scientific significance, the murals are a testament to early human creativity and curiosity. They reveal a culture that not only survived in challenging conditions but also recorded its surroundings with careful detail, preserving knowledge for millennia. The art bridges time, connecting us to people who observed, studied, and honored the animals that shared their world.

Some creatures live only in fossils. Others endure in the eyes of ancient artists, immortalized on stone.

This dinosaur was longer than a blue whale and as tall as a 7-story building. 🦕🏢

Meet Patagotitan mayorum, one of the largest titanosaurs ever found. Discovered in Argentina in 2014, this gentle giant stretched an incredible 120 feet long and weighed an estimated 70 tons.

Its very bones rewrite the rules of what we thought was biologically possible for a land animal. A true leviathan of the prehistoric world!

Museum Collections 🦌
This neat skull is the holotype specimen for Kyptoceras amatorum, an extinct species known to live in Florida about 5 to 4.6 million years ago. They had two horns at the end of their snout and a horn above each eye.

Rather than true horns, these are ossicones, which are skin-covered bone like giraffes have. It is believed the males used these 'horns' for grappling with each other similar to how deer use their horns.

Read: https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/species/kyptoceras-amatorum/

Featured fossil
Species: Kyptoceras amatorum
Specimen: UF 25711, holotype

📝 Holotype: The single specimen upon which the scientific name of a species is based, and was explicitly designated as such in the original published description.

Our fossil collections include 44 specimens of this species from Florida, all excavated from the phosphate mines of central region of the state.

The family Protoceratidae is an extinct group of generally rare artiodactyls, best known for their unique hornlike structures adorning the skulls in adult male individuals.

Paleontologists are interested in new fossil discoveries of this and related species to better understand their place in time and across geography.

Online Resource 🦣 Fossil Species of Florida
Explore more species of Florida and notable fossil dig sites that helped expand our knowledge of the plants and animals that lived here over time: https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/

In September 2018, a pair of fishermen in Northern Ireland reeled in a 6-foot-wide elk skull from the bottom of a lake. It turned out to be over 10,000 years old and from an extinct species known as the Irish Elk.

In September 2018, two fishermen in Northern Ireland made an extraordinary discovery while fishing in Lough Neagh, the largest freshwater lake in the British Isles. Tangled in their nets was a massive skull and antlers measuring nearly six feet across.

At first glance, it appeared to be a giant deer, but experts quickly identified it as belonging to the extinct Megaloceros giganteus, better known as the Irish Elk.

Despite its name, the Irish Elk was not exclusive to Ireland, nor was it a true elk. It was one of the largest deer species to ever walk the Earth, standing up to 7 feet tall at the shoulders, with antlers that could span over 12 feet.

These animals thrived during the Ice Age across much of Europe and Asia before going extinct around 10,000 years ago, likely due to a combination of climate change and human hunting pressure.

The specimen recovered from Lough Neagh was dated to more than 10,500 years old, remarkably preserved in the lake’s cold, oxygen-poor waters. Discoveries like this help scientists piece together the ecosystems of the late Pleistocene and give us a glimpse into the sheer scale of prehistoric wildlife.

Fun fact: Despite their massive antlers, studies suggest Irish Elk were surprisingly efficient runners, adapted to open grasslands where speed and size provided protection.

The HUGE Florida Platform #historicaltidbits #geologyrocks #florida #GeologyFacts #history

Did you know prehistoric sea monsters were discovered in Kentucky’s Mammoth Cave? 🦈

Two ancient sharks, hidden for 325 million years, were uncovered in the world’s largest cave system. These fossil giants, Troglocladodus trimblei and Glikmanius careforum, once roamed warm, shallow seas that covered eastern North America long before dinosaurs walked the Earth.

Measuring up to 12 feet long, these sharks belong to the ctenacanth group. Their discovery offers an incredible glimpse into ancient marine ecosystems and helps scientists piece together the story of shark evolution as the supercontinent Pangea was forming.

With over 70 ancient fish species now identified in the cave system, Mammoth Cave is becoming a hotspot for prehistoric marine research. These findings don’t just rewrite what we know about ancient oceans — they also reveal how sharks adapted and diversified over millions of years.

The carvings of dinosaurs at Ta Prohm Temple are an interesting piece of history.
The carving of the dinosaur at Ta Prohm Temple is hidden in a garden corner. Take a look to the left of the main exit to find it. The exact details and familiar shape of the dinosaur are very clear, which makes it an amazing sight for people to see. Several sites have information about the carving, including a picture taken by Germany on December 17, 2009.
Wikipedia.org has a page that compares the carvings of dinosaurs that can be found at Ta Prohm Temple.
This carving of a dinosaur at Ta Prohm Temple has become interesting to both tourists and experts, even though it doesn't seem to belong in a temple from the 12th century. Some say it shows that people knew about dinosaurs in the past, while others say it's just a drawing of a familiar animal that has been changed over time by erosion or artistic interpretation. The dinosaur carving at Ta Prohm Temple shows that Siem Reap, Cambodia, has a long and mysterious past. No one knows where it came from.