Paleontological classification and evolution - Animal Top 10

Characteristics and evolution of lungfish

The earliest representative of lungfish is the bifin fish of the middle Devonian period. On this basis, lungfishes were ···

air breathing fish

During the Devonian period, the earliest lobe-finned fishes appeared and differentiated into two major categories: lungf···

The relationship between reptiles (reptile family tree)

We already know that based on the development of the temporal part of the skull, that is, the relationship between the d···

Salamanders and the Origin of Reptiles

There is a city called Seymour in Texas, USA. A large area of early Permian sediments is exposed in the north of the cit···

The evolution and characteristics of reptiles

Reptiles are the earliest amniotes to appear on earth. They evolved from labyrinths among amphibians. The transition fro···

Wave-like evolution of ray-finned fishes

Actin-finned fishes are the most successful aquatic group of all vertebrates, occupying almost all ecological niches in ···

The evolutionary path of primitive bony fishes (real conquerors of waters)

In the middle Devonian period, some more advanced bony fishes appeared. Part or all of their bones ossify into hard bone···

Structure of the Gap Shark (Ancient Ocean Killer)

The sharks we are familiar with are cartilaginous fishes. Nearly all cartilaginous fishes are marine animals. Throughout···

The story of a high-class fish riding and shooting in Hufu

Life originated in the primitive ocean, and the earliest vertebrates were also born in the waters. Both armored fish and···

The evolution of the most primitive placoderm fish

The most primitive gnathostomes discovered so far are placoderms (class). They first appeared in the late Silurian Perio···

The most primitive bony fish - acanthus

As early as the late Silurian period when placoderms just appeared, the most primitive bony fishes, the acanthus, also q···

The first revolution in the history of biological evolution (the origin of the jaw)

In the history of biological evolution, some major events have occurred. The significance of these major events exceeds ···

Lamprey’s appearance characteristics and living habits

Lampreys look very much like ordinary eels. They have a slender body with exposed skin without scales. There is a long d···

The rise and fall of the armored fish family

Before the earliest vertebrates were discovered in the Chengjiang fauna in China, scale fossils with bony structures fou···

The emergence of backbone and the origin of fish-like animals

Vertebrates are the highest group in the animal kingdom. They form a subphylum of the phylum Chordata in the animal king···

The shape and structure of conodonts

Across the world, scientists have discovered a large number of tiny fossils from various marine strata from the Cambrian···

Plants with flowers are not necessarily "flowering plants"

If you go to the botanical garden to play, you will definitely be attracted by the various colorful flowers there; every···

Plants with naked seeds - gymnosperms

When the ferns of the Paleozoic Era formed the first primeval forests on earth, gymnosperms, which were more advanced th···

Plants with leaves that look like sheep's teeth - ferns

The leaves of modern ferns all look like sheep's teeth, so the earliest scientists who studied them called them "ferns".···

The earliest land "producer"

When the American paleobotanist Letariak was analyzing and studying the Late Ordovician ancient soil in Pennsylvania, he···

The form and life of graptolite (representative of ancient hemichordates)

Hemichordates are also called "cryptozoans" and they all live in the ocean. Their most striking feature is a nerve cord ···

How did insect wings evolve?

Fossil evidence shows that the earliest winged insects appeared in the late Carboniferous period. That was about 300 mil···

The origin of insects (the earliest fliers)

The oldest insect fossil is a wingless springtail insect found in the middle Devonian strata 350 million years ago. The ···

The Trilobite World of the Cambrian

As early as more than 300 years ago during the Chongzhen period of the Ming Dynasty, a man named Zhang Huadong discovere···