Journal of Vertebrate Paleontology The Middle Miocene wetlands were a hotbed for biological gigantism. Alongside these crocodilians, the region teemed with armored glyptodonts, giant ground sloths, formidable terror birds, and massive anacondas. Because...

A multi‑shelled egg consists of several calcite layers pressed tightly together, a pattern observed in turtles, geckos, crocodilians, various birds, and in some Argentine titanosaur nests. By contrast, an ovum‑in‑ovo egg contains a near‑complete inner...

ancestors. A specimen that spent more than a hundred years in a museum drawer has reshaped scientists’ view of early crocodilians after ultraviolet imaging revealed an extraordinary suite of soft‑tissue remnants. The fossil, detailed in the Zoological...

Ancient fossil bones from Colombia reveal evidence of massive crocodilians hunting giant mammals, offering a rare glimpse into an intense prehistoric ecosystem. Paleontologists have uncovered the first direct physical evidence that massive crocodylians...

analysis places Austronaga within an early branch of archosaurs—the lineage that eventually gave rise to dinosaurs and crocodilians. Dr. Stephan Spiekman noted that prior assumptions held early archosaurs to be only minimally adapted to marine habitats....

as well as the prehistoric megalodon shark. The figure compares estimated body temperatures of Tyrannosaurus rex, crocodilians and bivalves using fossil evidence. Credit: Science Advances Refinements to the technique were essential for this study, as...

for developing embryos. Comparison of eggshell porosity and egg size across dinosaurs, including titanosaurs and crocodilians. Credit: Royal Society Open Science To determine how these dinosaurs overcame the cold, the team utilized micro-CT scanning and...

Possible Defensive Role Researchers modeled the tail musculature by comparing the fossil anatomy with that of modern crocodilians and lizards. The simulation indicates a horizontally held tail capable of sweeping motions, hinting that the structure may...

Discover how fierce crocodile-like beasts ruled the Caribbean 4.5 million years ago—why their shocking survival stuns scientists. Don’t miss this! Fierce crocodile-like predators with razor-sharp teeth clung to survival in the Caribbean until 4.5...

New evidence from fossilized teeth suggests that coastal dinosaurs may have scavenged marine life after storms, revealing a surprising Cretaceous diet. Hidden within the fossilized teeth of ancient North American dinosaurs, researchers have uncovered...

A long‑lost fossil reveals a new 200‑million‑year‑old predator, shedding light on an ancient world previously unknown to science. Researchers have unveiled a previously unknown crocodile‑like reptile that roamed what is now northern New Mexico about...