A Newly Discovered Species of Prehistoric Shark Was Named After the Video Game Galaga

Velizar Simeonovski, Field Museum
Velizar Simeonovski, Field Museum

Dinosaurs weren’t the only fearsome creatures who called North America their home millions of years ago. The recent discovery of pointy, fossilized teeth in rock that had been left over from an excavation in the ‘90s has led scientists to declare a new—yet long-extinct—shark species, Smithsonian reports.

North Carolina State University professor Terry Gates, who led the study published in the Journal of Paleontology, named the shark species Galagadon nordquistae after its triangular teeth, which he thought resembled the shape of the battleships in the video game Galaga. The second part of the name pays homage to Karen Nordquist, the retired chemist and volunteer at Chicago’s Field Museum who found the fossils in the first place.

Galagadon lived in what we now know as South Dakota’s Hell Creek Formation, an area known for having rocks and fossils that date back at least 65 million years to the Cretaceous Period. It’s the same place where scientists unearthed Sue the T.rex—the most complete skeleton of its species ever discovered. Not only did the shark live at the same time as Sue, but it also “lived in a river Sue probably drank from,” the Field Museum, where Sue can be seen on display, said in a press release.

In fact, the excavation that led to Sue’s discovery in 1990 is what enabled this latest find. The sediment that encased Sue’s bones, known as matrix, was removed and stored in an underground unit at the Field Museum. Scientists and museum volunteers have only recently begun to sift through it in search of smaller fossils.

Shark tooth fossils
Terry Gates, Journal of Paleontology

Sharks’ skeletons are primarily made of cartilage, which deteriorates over time. But the tiny teeth, measuring just a millimeter wide, helped scientists figure out what the shark looked like. "Galagadon was less than 2 feet long—it's not exactly Jaws," Pete Makovicky, one of the study’s authors, said in a statement.

The species is believed to be similar to bamboo sharks, which can be found today in southeast Asia and Australia. This connection surprised researchers, who are now questioning their understanding of the area where Sue was found, which was thought to be a lake formed from a partially dried-up river. This latest discovery, however, indicates that there “must have been at least some connection to marine environments," Makovicky says.

[h/t Smithsonian]

How the T. Rex at the American Museum of Natural History Became an Icon

J.M. Luijt, Wikimedia Commons //  CC BY-SA 2.5 nl
J.M. Luijt, Wikimedia Commons //  CC BY-SA 2.5 nl

When asked to think of a Tyrannosaurus rex, you may picture the dinosaur from the original King Kong (1933), the famous vintage illustration by Charles Knight, or perhaps the sinister fossil gracing the poster for Jurassic Park (1993). Each of these pop culture depictions of T. Rex was inspired by a single specimen: A skeleton on display at the American Museum of Natural History in New York City dubbed AMNH 5027.

In the video below, the AMNH explains how their fossil became the most iconic T. Rex—and therefore the most iconic dinosaur—in history. From 1915 to about 1940, it was the only the mounted T. Rex skeleton on display to the public. That means that most movies created in the early 20th century featuring a T. Rex—including The Ghost of Slumber Mountain (1918), King Kong, and Fantasia (1940)—were either directly or indirectly inspired by the museum's specimen. AMNH 5027 was incorrectly displayed standing upright with its tail on the ground for decades, which is why so many early depictions of the dinosaur in pop culture show it with the same posture.

The fossil's influence on the world isn't limited to early 20th century cinema. When brainstorming ideas for Jurassic Park's book cover, designer Chip Kidd went to the American Museum of Natural History for inspiration. He used AMNH 5027 as the model for one of the most iconic book jackets ever made. The design was repurposed in the posters for Jurassic Park the movie, and the rex's silhouette has since appeared on countless toys, T-shirts, and other merchandise.

The image has become synonymous with the species, but there's one small detail that's unique to AMNH 5027. The dinosaur in the Jurassic Park artwork has a small bump on the inside of its skull. This bump formed when a bone in the original specimen got pushed out of place during fossilization, and today it's a distinct feature that makes its profile instantly recognizable.

To learn more about the huge impact AMNH 5027 has had in the last century or so of its 65 million years on Earth, check out the video below.

The Fossil of a Human-Sized Penguin Has Been Unearthed in New Zealand

DurkTalsma/iStock via Getty Images
DurkTalsma/iStock via Getty Images

Penguins are known for looking cute and cuddly, but if the monster penguins of the Paleocene epoch were still around today, they might have developed a different reputation. As The Guardian reports, the fossil of a new species of one of these giant prehistoric penguins was recently discovered in New Zealand, and scientists say it would have gone head-to-head with many adult humans.

The bird, dubbed Crossvallia waiparensis, stood about 5 feet 3 inches tall and weighed about 175 pounds. For comparison, emperor penguins weigh up to 88 pounds and can reach 3 feet 8 inches in height. The prehistoric bird waddled the Earth some time between 66 and 56 million years ago—shortly after the mass extinction event that wiped out the dinosaurs and marine reptiles, which were probably its main predators.

An amateur paleontologist named Leigh Love discovered the creature's fossilized leg bones on New Zealand's South Island. From those fossils alone, a team of scientists from the Canterbury Museum in New Zealand and the Senckenberg natural history museum in Germany were able to estimate the penguin's height and weight and determine that it belonged to a previously undiscovered species. The large leg bones also indicate that the animal was more reliant on its feet for paddling through the water than the penguins of today.

Crossvallia waiparensis is massive by today's penguin standards, but it's not even the largest prehistoric penguin that we know of. When carnivorous reptiles began disappearing from the world's oceans, the waters opened up for new predators like penguins to flourish. Kumimanu biceae is estimated to have weighed about 223 pounds; Palaeeudyptes klekowskii may have weighed 253 pounds and stretched 6 feet 5 inches long.

[h/t The Guardian]

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