Trilobites are among the most remarkable lifeforms ever to exist. First emerging 521 million years ago, these organisms—animals with highly developed eyes, sturdy walking legs, and protective outer shells—evolved into more than 25,000 scientifically recognized species. During their 270 million years of inhabiting the ancient seas, trilobites proliferated into an ever more fanciful cast of characters, from graceful Cambrian olenellids to robust Ordovician asaphids to spine-covered Devonian ...

Ammonites swam in Earth’s ancient seas for nearly 400 million years. These prolific cephalopods diversified into more than 10,000 species before meeting their demise during the end-Cretaceous mass extinction. Today, these spiral-shelled invertebrates are among the most abundant fossils in the geologic record, found from snowcapped Himalayan peaks to parched South American arroyos. People around the world have long been drawn to the mystery and beauty of ammonite fossils. These preternatura...

For more than 250 million years, the primeval oceans of the Paleozoic teemed with trilobites. These hardy invertebrates evolved into an astonishing array of separate species—more than 25,000 at last count—and much remains unknown about these once-ubiquitous creatures. Fossil enthusiasts are captivated by trilobites’ diversity and adaptability, enthralled by the possibility of catching a glimpse of a transcendently strange past.Andy Secher—one of the most prolific trilobite collecto...

Trilobites were some of the most successful and versatile organisms ever to exist. Among the earliest forms of complex animal life, these hard-shelled marine invertebrates inhabited the primal seas of the Paleozoic Era. Their march through evolutionary time began in the Lower Cambrian, some 521 million years ago, and lasted until their demise at the end of the Permian, more than 250 million years later. During this vast stretch of planetary history, these adaptable animals filled virtually...

The Mesozoic or Secondary Era, extends for a period ranging from 251 to 65 million years ago. Also called as the Age of Reptiles, derives its name from the greek mesos, "middle", because it was placed in between the ancient (Paleozoic) and recent (Cenozoic) where he witnessed a veritable explosion in the number of living species and formed the majority of sedimentary rocks.

A beautiful little guide to one of life's simple pleasures – pebble spotting. Where science meets mindfulness. Learn to appreciate their beauty, discover the amazing journey that brought them to you, search for the rare ones. Leave no stone unturned.Turn a day on the beach or a seaside holiday stroll into a treasure hunt with this lovely little guide to identifying pebbles.Pebble spotting is one of life’s simple joys. There’s nothing quite ...

For most of us, the story of mammal evolution starts after the asteroid impact that killed the dinosaurs, but over the last 20 years scientists have uncovered new fossils and used new technologies that have upended this story.In Beasts Before Us, palaeontologist Elsa Panciroli charts the emergence of the mammal lineage, Synapsida, beginning at their murky split from the reptiles in the Carboniferous period, over three hundred million years ago. They made t...

"A tour de force…highlights the odd reptiles that roamed all corners of the earth millions of years ago."— Sydney Morning HeraldFrom the outback of Australia to the Gobi Desert of Mongolia and the savanna of Madagascar, the award-winning science writer and dinosaur enthusiast John Pickrell embarks on a world tour of new finds, meeting the fossil hunters who work at the frontier of discovery. He reveals the dwarf dinosaurs unearthed by an eccentric Transylv...

This valuable and beautiful book is the work of two animal lovers — James F. Coleman is a zoologist and the author of many books on prehistoric animals; Arthur Lobus is an illustrator of many popular encyclopaedias and books about the animal kingdom. His realistic and very graphic illustrations not only skilfully bring dinosaurs to life but lend an incredible atmosphere to the times in which these prehistoric animals lived.This encyclopaedia is intended for children from age 7 to 1...

This color-illustrated Encyclopedia of dinosaurs introduces over 50 types of dinosaurs. Clearly written and easy to understand text introduces us to the most important of these amazing rulers of our planet Earth which suddenly disappeared about 65 million years ago.The first animals we can recognize as dinosaurs lived about 225 million years ago. To begin with dinosaurs were small animals about a meter long, running on their hind legs. Early dinosaurs were among the first animals t...

Open The Urban Tree Book and discover the joys of forest trekking--right in your city or town. This first-of-a-kind field guide introduces readers to the trees on their block, in neighborhood parks, and throughout the urban landscape. Unlike traditional tree guides with dizzying numbers of woodland species, The Urban Tree Book explores nature in the city, describing some 200 tree types likely to be found on North America's streets and surrounding spaces, including suburban...

A scientist recounts his global adventure documenting trilobite fossils in this full-color book perfect for armchair paleontologists.Distant relatives of modern lobsters, horseshoe crabs, and spiders, trilobites swam the planet's prehistoric seas for 300 million years, from the Lower Cambrian to the end of the Permian eras—and they did so very capably. Trilobite fossils have been unearthed on every continent, with more than 20,000 species identified by science. One ...