The FossilFlip Journal

Field guides, paleontology deep dives, and fossil identification tips — published fresh every week.

Decoding Ammonite Sutures: Nature's Intricate Fossil Patterns
Paleontology·Oct 26, 2026·3 min read

Decoding Ammonite Sutures: Nature's Intricate Fossil Patterns

Discover the secrets behind the mesmerizing, leaf-like patterns on ammonite fossils and learn how these 'sutures' reveal the history of ancient oceans.

Ammonites: Unlocking the Secrets of Ancient Oceans
Paleontology·Oct 19, 2026·3 min read

Ammonites: Unlocking the Secrets of Ancient Oceans

Discover the fascinating world of ammonites, the spiral-shelled cephalopods that serve as nature's own geological clocks for dating Earth's history.

Megalodon Teeth: How to Spot a Real One and What They're Worth
Paleontology·Oct 12, 2026·3 min read

Megalodon Teeth: How to Spot a Real One and What They're Worth

Discover how to identify an authentic Megalodon tooth, avoid common fakes, and understand the factors that determine their market value.

How Do Fossils Form? The Science of Ancient Preservation
Paleontology·Oct 5, 2026·3 min read

How Do Fossils Form? The Science of Ancient Preservation

Ever wonder how a bone turns into stone? Discover the incredible journey from living organism to fossilized treasure in this beginner's guide.

How Paleontologists Date Fossils: A Beginner's Guide
Paleontology·Sep 28, 2026·3 min read

How Paleontologists Date Fossils: A Beginner's Guide

Ever wonder how scientists know exactly how old a dinosaur bone is? Discover the fascinating science behind relative and absolute dating methods.

Green River Formation: The Eocene's Preservation Masterpiece
Paleontology·Sep 21, 2026·2 min read

Green River Formation: The Eocene's Preservation Masterpiece

Discover the Green River Formation, a world-renowned fossil site in the American West that offers an unparalleled window into life during the Eocene epoch.

Brachiopods vs Bivalves: Telling Two Ancient Shells Apart
Fossil Guide·Sep 14, 2026·5 min read

Brachiopods vs Bivalves: Telling Two Ancient Shells Apart

Discovered a prehistoric shell fossil? Learn how planes of symmetry, hinge mechanics, and evolutionary history help you easily distinguish brachiopods from bivalves.

Brachiopods vs Bivalves: Telling Ancient Shells Apart
Fossil Guide·Sep 7, 2026·5 min read

Brachiopods vs Bivalves: Telling Ancient Shells Apart

Discovered a fossil shell and not sure if it is a clam or a lamp shell? Learn the symmetry trick to easily distinguish brachiopods from bivalves.

The Jurassic Period: Dinosaurs, Climate, and Geography Explained
Paleontology·Aug 31, 2026·3 min read

The Jurassic Period: Dinosaurs, Climate, and Geography Explained

Discover the wonders of the Jurassic Period, a golden age of dinosaurs defined by lush landscapes, shifting continents, and a warm, humid climate.

The Jurassic Period: A Beginner's Guide to the Age of Giants
Paleontology·Aug 24, 2026·5 min read

The Jurassic Period: A Beginner's Guide to the Age of Giants

Step back 200 million years to explore the Jurassic Period, an era of shifting continents, lush tropical climates, and the rise of Earth's most iconic dinosaurs.

Trilobites: The Dominant Arthropods of the Paleozoic Era
Paleontology·Aug 10, 2026·6 min read

Trilobites: The Dominant Arthropods of the Paleozoic Era

Discover the incredible 300-million-year history of trilobites, the armored marine icons that ruled the Paleozoic seas with high-tech eyes and diverse adaptations.

Fossil Hunting USA: A State-by-State Guide for Beginners
Paleontology Guide·Aug 3, 2026·5 min read

Fossil Hunting USA: A State-by-State Guide for Beginners

Embark on a prehistoric adventure with our guide to finding fossils across the United States, from ancient marine life to massive dinosaurs.

Gastropod fossils: 500 million years of snail evolution
Paleontology·Jul 27, 2026·1 min read

Gastropod fossils: 500 million years of snail evolution

The Day the Dinosaurs Died: The Cretaceous Extinction Explained
Paleontology·Jul 20, 2026·4 min read

The Day the Dinosaurs Died: The Cretaceous Extinction Explained

Explore the cataclysmic event that ended the Age of Reptiles and paved the way for the rise of mammals 66 million years ago.

Unlocking the Past: How Ammonites Reveal the Secrets of Ancient Seas
Paleontology·Jul 15, 2026·5 min read

Unlocking the Past: How Ammonites Reveal the Secrets of Ancient Seas

Discover the fascinating process of ammonite fossilization and learn how these spiral-shelled creatures act as time capsules for Earth's prehistoric oceans.