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CERATITES AMMONITE ON REMOVABLE MATRIX Upper Muschelkalk Formation - Elm (Schoningen), Germany TRIASSIC PERIOD: 230 million years ago For the ultimate in uniqueness to compliment any advanced collection of ammonites, this Ceratites specimen with its original matrix offers both a unique provenance AND time period from which it once lived. This is a nice example of this genus and even part of the inner chambers are visible. The ammonite can be lifted off the matrix to expose BOTH sides and see the impression in the host rock as seen in the third photo from the top. This is a perfect addition for an ammonite collector wishing to augment their collection with a specimen from a lesser common geological period for ammonites - the Triassic. This ammonite preferred warm, shallow seas of depths less than 100 meters.Approximately 230 million years ago during the Triassic Period, vast areas of Germany were covered with a flat inland sea. Through the geological periods, this ancient seabed fossilized into hard, shelly limestone layers. Embedded in the Upper Muschelkalk rock, we find the Ceratites ammonites with their classic four-lobed chamber structures visible in the fossils. Additional lobes are sometimes seen in larger ceratites but this is simply a division of the umbilical lobe (closest to center). The Ceratites with its four-lobe chambers is a unique ammonite to the Triassic. No ammonite collection should be without fine examples of Triassic ammonites from the order Ceratitina (or Ceratitidae). These unique cephalopods were the first types to evolve from more primitive ammonites and show a much more complex suture line, shell shape and external features. Dinosaurs were just beginning to emerge on our planet when this ammonite was alive! CLASSIC TRIASSIC AMMONITE WHICH CAN BE PICKED UP OFF ITS ORIGINAL MATRIX BASE! 3" in width SOLD AMX-019 Actual Item - One Only |
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