Time came to the Carboniferous 365-290 million years ago, the era of fish prosperity has passed, the Mudian Handenburg incident led to the decline and demise of the rulers at that time, the shield fish family came to an end, disappeared in the dust of history, the next Carboniferous, oxygen-rich, pelagic expansion, ocean depth gradually changed, the emergence of the real deep sea
Carboniferous restoration
The river was a paradise for freshwater fish and a habitat for early amphibians, as well as an oversized freshwater fish, the root-toothed fish, which was 7 meters long and weighed 2 tons, and this beast probably fed on the fish of the time, and even ate arthropods, the largest meat-finned fish born
River Trolls: Roottooth Fish
At that time, the development of the ocean was also more abundant, such as the still surviving trilobites, giant invertebrates and abundant marine fish, the wider ocean, at the same time, two kinds of cartilaginous fish were two-pronged, namely the ctenophore shark and the scissor shark in the shark, the scissor shark was not a shark, and the existing silver mackerel was closely related, it was a full-headed subclass, the largest greedy scissor shark was more than 10 meters, the tower ctenophore shark was only 9 meters, the Study of the Carboniferous Ocean was rare, less than the ecological niche study of the river, and the greedy scissor shark was probably the largest animal in the Carboniferous Period.
Scissor shark
At that time, there were also small cartilaginous fish in the ocean, also a full-headed subclass, it was a pectoral ridge shark, not yet a normal large person, survived the Devonian, extinct in the middle of the Carboniferous Period, offshore and reef hunters, respecting large sharks
The real horror of the Carboniferous period was the land, ruled by huge arthropods, so the Paleozoic was not only the golden age of cartilaginous fish, but also the flourishing of arthropods in the Carboniferous Period, centipedes as large as people and horse land, dragonflies as large as eagles
Giant veined dragonfly
The Carboniferous period was the coal period, when enrichment not only created the size of arthropods (here, rich farming has changed the size of arthropods, dinosaurs and cetaceans are specialized rather than oxygen changes), but also dense jungles When plants die after long geological changes, they become coal, and today's coal mines are also produced in the Carboniferous Period, when the continent was covered with dense trees, and the earth looked green.
However, at the end of the Carboniferous Period, due to abundance, the flames caused by lightning hitting dead wood stirred up the entire continent, and arthropods had no chance to rise