Reviews
This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
8.6" Priscacara With Four Knightia Fossil Fish - Wyoming
his is an exceptional multiple-fish plate from the famed 18" layer of the Green River Formation, collected at the Clear Creek Quarry near Kemmerer, Wyoming. The highlight is an uncommon 8.6" Priscacara serrata with beautifully splayed spines, accompanied by four large Knightia eocaena, all showing excellent detail and contrast.
The five fossils are attractively displayed on a 14 x 13.5" limestone slab. A display stand is included, and for an additional $100, we can professionally back the piece and install a wall hanger for ready-to-mount presentation.
The five fossils are attractively displayed on a 14 x 13.5" limestone slab. A display stand is included, and for an additional $100, we can professionally back the piece and install a wall hanger for ready-to-mount presentation.
About Priscacara
Priscacara is an extinct genus of temperate bass that lived during the Eocene. It is an uncommon species in the Green River Formation, representing less than 1 percent of total fish fossils. It is a favorite among fossil collectors, particularly those specimens with all of their dorsal spines pointing upwards. It can occasionally reach impressive sizes in excess of 16 inches in length. Priscacara has a large mouth and impressive array of teeth can often be seen in detail on larger, well-preserved specimens.
Priscacara is more frequently found in shoreline lake deposits and less frequently found in rocks deposited in the center of the lake. Its appearance is very similar to that of Cockerellites, a genus of smaller schooling fish found in large numbers in the mid-lake quarries. Cockerellites maxed out in the 5 to 6-inch range, so specimens larger than that can be easily classified as Priscacara. Cockerellites have more dorsal and anal fin rays than Priscacara and a significantly smaller mouth.
Priscacara is an extinct genus of temperate bass that lived during the Eocene. It is an uncommon species in the Green River Formation, representing less than 1 percent of total fish fossils. It is a favorite among fossil collectors, particularly those specimens with all of their dorsal spines pointing upwards. It can occasionally reach impressive sizes in excess of 16 inches in length. Priscacara has a large mouth and impressive array of teeth can often be seen in detail on larger, well-preserved specimens.
Priscacara is more frequently found in shoreline lake deposits and less frequently found in rocks deposited in the center of the lake. Its appearance is very similar to that of Cockerellites, a genus of smaller schooling fish found in large numbers in the mid-lake quarries. Cockerellites maxed out in the 5 to 6-inch range, so specimens larger than that can be easily classified as Priscacara. Cockerellites have more dorsal and anal fin rays than Priscacara and a significantly smaller mouth.
About The Megalodon Shark
The megalodon was not only the biggest and baddest prehistoric shark that ever lived, it was the largest marine predator in the history of the planet. Today’s great white sharks would be a mere bite-size snack for this monster. It terrorized the diverse ocean waters around the world from 15.9 to 2.6 million years ago, from the late Oligocene to the early Pleistocene. This massive and extinct species of shark was estimated to grow to nearly 60 feet in length and has often been declared the greatest vertebrate predator that ever lived.
Reconstructed jaws on display at the National Aquarium in Baltimore.
These mega-toothed sharks were a giant and more robust version of the great white. They had 276 teeth in 5 rows and, like today's sharks, shed their teeth throughout their lifetime. The largest megalodon teeth on record reached a staggering 7.5 inches (190mm)! Compare this to the largest great whites, whose teeth top out around 3 inches long. Wow!
Their teeth were bone-crunching and flesh-cutting tools evolved for grasping powerful prey such as baleen whales. Fossil evidence supports that megalodon focused its attack on the hard, bony parts of its prey, such as rib cages, flippers, shoulders, and spines, effectively disabling large whales and harming major organs such as the heart and lungs. This strategy explains their thick, robust teeth.
Megalodon had a cosmopolitan (global) distribution and its giant teeth can be found in deposits throughout the world. Some are collected on land in phosphate deposits, while many are collected from rivers and coastlines after eroding out of the rocks. This contributes to the water-worn, polished appearance of many teeth.
The standard measure for megalodon teeth is slant height, or the longest edge of the tooth. Adult megalodon teeth were typically in the 4 to 5 inch range: teeth over 6 inches are rare and represent super-sized individuals. Only a handful of teeth have ever been found over seven inches.
No one knows for sure why the megalodon went extinct 2.6 million years ago, but the cooling of the climate and gradual disappearance of many of the large whales it relied on for food are suspects.
The megalodon was not only the biggest and baddest prehistoric shark that ever lived, it was the largest marine predator in the history of the planet. Today’s great white sharks would be a mere bite-size snack for this monster. It terrorized the diverse ocean waters around the world from 15.9 to 2.6 million years ago, from the late Oligocene to the early Pleistocene. This massive and extinct species of shark was estimated to grow to nearly 60 feet in length and has often been declared the greatest vertebrate predator that ever lived.
Reconstructed jaws on display at the National Aquarium in Baltimore.
These mega-toothed sharks were a giant and more robust version of the great white. They had 276 teeth in 5 rows and, like today's sharks, shed their teeth throughout their lifetime. The largest megalodon teeth on record reached a staggering 7.5 inches (190mm)! Compare this to the largest great whites, whose teeth top out around 3 inches long. Wow!
Their teeth were bone-crunching and flesh-cutting tools evolved for grasping powerful prey such as baleen whales. Fossil evidence supports that megalodon focused its attack on the hard, bony parts of its prey, such as rib cages, flippers, shoulders, and spines, effectively disabling large whales and harming major organs such as the heart and lungs. This strategy explains their thick, robust teeth.
Megalodon had a cosmopolitan (global) distribution and its giant teeth can be found in deposits throughout the world. Some are collected on land in phosphate deposits, while many are collected from rivers and coastlines after eroding out of the rocks. This contributes to the water-worn, polished appearance of many teeth.
The standard measure for megalodon teeth is slant height, or the longest edge of the tooth. Adult megalodon teeth were typically in the 4 to 5 inch range: teeth over 6 inches are rare and represent super-sized individuals. Only a handful of teeth have ever been found over seven inches.
No one knows for sure why the megalodon went extinct 2.6 million years ago, but the cooling of the climate and gradual disappearance of many of the large whales it relied on for food are suspects.
SPECIES
Priscacara serrata & Knightia eocaena
LOCATION
Clear Creek Quarry, Kemmerer, Wyoming
FORMATION
Green River Formation - 18 Inch Layer (Bottom Cap)
SIZE
Priscacara 8.6" long on 14 x 13.5"
CATEGORY
SUB CATEGORY
ITEM
#342482
We guarantee the authenticity of all of our specimens.
