Due to the number of specimens that have been found, from unborn embryos to adults, the life cycles of the ancient species can be studied. The fish and many plants and insects were entombed in goethite, an iron‑oxide mineral that precipitated rapidly in the stagnant lake water Dive into the ancient depths of history with our remarkable collection of fossil fish for sale
cass (@caxxide) • Instagram photos and videos
Not all fish fossils are peaceful snapshots of ancient life
Some are grim tableaux of mass death, preserved in layers of rock laid down during catastrophic events.
Where to find fossil fish is a common question for fossil enthusiasts and rockhounds alike Some people like to rockhound on a sand, even pink sand beach picking up really pretty shells, agatized coral and sea glass. The upper part of the near shore shale may contain marine invertebrate fossils such as brachiopods, mollusks, and occasional fish teeth or spines These deposits are followed by the deposition of a fairly thin, dense, finely crystalline limestone that is called the transgressive limestone.
The fossil record includes the prehistoric relatives of sharks, turtles, crabs, stingrays, shrimp and starfish, as well as dozens of fish species that ranged in size from minuscule to several metres long. The green river formation of colorado, utah, and wyoming is one of the world's best locations for finding fossil fish These eocene fossils were preserved in intermountain lake basins while the rocky mountains were still growing! Knightia is an extinct freshwater herring from the eocene period (about 40 to 55 million years ago)
It lived with many other kinds of fishes in lakes that once covered parts of wyoming, utah, and colorado
The newly developing rocky mountains added sediment to the lakes that later formed the rocks in which these fossils were found These fossils exhibit intricate details, including scales, fins, and sometimes even soft tissues, providing valuable information about the anatomy and biology of ancient fish The physical properties of wyoming fish fossils can vary depending on the type of rock in which they are preserved.
