Horseshoe crabs are an ancient lineage with an evolutionary history stretching back 450 million years (Ordovician period) and are generally considered...
Paleontologists have discovered two new three-dimensionally preserved species of aculiferan mollusks that lived during the Silurian, revealing that the...
A newly-described genus and species of trilobite is a unique example of an animal changing the form and apparent function of one of its morphological features...
The evolution of the first animals on land, 500 million years ago, has been revealed. The ancestors of millipedes, called euthycarcinoids, evolved in warm...
Pterygotid eurypterids (sea scorpions), giant aquatic arthropods with big claws, were all regarded as apex predators but some scientists then suggested...
In the search for life in the Universe, Earth provides a template of evolution for the one habitable planet we know. Earth’s atmospheric composition...
The Waukesha Biota, a 437-million-year-old fossil assemblage from Wisconsin, USA, provides a rare glimpse into life in an ancient lagoon. In his book Wonderful...
New research by paleontologists from the University of California, Riverside and the Universidad Complutense de Madrid focuses on Aulacopleura koninckii,...
Paleontologists have examined the fossilized remains of Tujiaaspis vividus, a species of galeaspid that lived 436 million years ago (Silurian period) in...
The evolution of land plants took place about 430 million years ago (Silurian period), when North America and Europe were conjoined in a landmass called...
A new genus and species of mixopterid eurypterid (sea scorpion) has been identified from several fossil specimens found in the Xiushan Formation, China.
Life...
Large tidal ranges from the Late Silurian to the Late Devonian epoch (420 to 380 million years ago) could have fostered both the evolution of air-breathing...
Osteostraci, the jawless sister group to all jawed vertebrates, had adaptations for passive control of water flow around the body, according to new research...
Paleontologists have found that Aulacopleura koninckii, a species of trilobite that lived around 429 million years ago (Silurian period), was equipped...
A 425-million-year-old fossil millipede from Scotland is the oldest-known ‘bug’ (an insect, arachnid or other related creature), according to new research...
The exceptionally preserved fossils of the oldest species of scorpion ever found have been unearthed in Wisconsin, the United States.
Reconstruction of...
An international team of paleontologists has found the remains of an extinct sea cucumber in 430 million-year-old (Silurian period) fossil-rich deposits...
Eurypterids, better known as sea scorpions, used their serrated-spine-tipped tails to dispatch their prey, according to new research by University of Alberta...
A fossil crustacean, discovered by a University of Leicester-led team of paleontologists, has been named Cascolus ravitis in honor of the naturalist and...
The discovery of a 423-million-year-old fossil in China has shed light on the evolution of the tripartite (three-part) jaw, revealing a previously unknown...
