Brachiopods first appeared in rocks dating back to the early part of the Cambrean Period, about 525 million years ago. The were extremely abundant during the Paleozoic Era (543 to 248 million years ago). At the end of the Paleozoic era, they were decimated in the mass extinction that marks the end of the Permian Period, about 250 million years ago. This event may have killed more than 90 percent of all living species. It was the largest of all extinction events (larger than the major extenction at the end of the Cretaceous period that killed off the dinosaurs). Only about 300 to 500 species of brachiopods exist today, compared to 12,000 to 15,000 species during the Paleozoic Era.
Price: $2.00 ea
Items for the body, mind and spirit
Orthoceras ("straight horn") are the ancestors of the modern day squid. They could swim as well as crawl on the ocean floor. By filling the chambers in their shells with air they could float through the seas propelling themselves by squirting jets of water. As they died their shells accummulated on the ocean floor, then covered by sediments (mud) they transformed into stone over the ages. Specimens are from the Atlas Mountain Range in Morocco, dated to the Devonian Age, about 390 million years ago.
9-1/2" x 3-1/2" (24.13cm x 8.89cm)
Price ranges from $32.00 to $35.00
This orthoceras in matrix pictured at left has been sold, but we have others very similar to it.
We also have flat orthoceras starting at $30.00 Not pictured.
We are open: Tues-Fri 11:00-6:00 Sat 11:00-5:00
Closed: Sunday and Monday
Ammonites were predatory, squid-like creatures that lived in coil-shaped shells. They constantly added to their shell as they grew but only lived in the outer chamber.
Ammonites are shaped like a ram's horn. They were named after the Egyptian God Ammon who is depicted as a man with ram's horns. The fossil was considered Ammon's stone, thus the name Ammonite.
Though they are now extinct, ammonites appeared more than 400 millions years ago and lived till 65 million years ago. They became extinct at the same time as Dinosaurs.
Ammonites have been found in the Sahara Desert and in Alberta, which were once ancient seabeds.
Sizes and prices vary. Some are whole, and some are cut in half and sold in pairs.
Our largest ammonite is 4-1/2" wide (11.43 cm), and our smallest is 1-1/2" wide (3.81cm)