Fossil Gift Box
Fossil Gift Box
Looking for a gift for a budding paleontologist the our fossil gift boxes are the ideal way to start a fossil collection. This box contains the following:
1 Small Fossil Shark Tooth from Morocco
1 Fish Fossil from the Green River Formation in the USA
1 White Spined Ammonite from Madagascar
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Otodus is an extinct genus of mackerel shark which lived from the Paleocene to the Miocene epoch. These teeth are between 55 and 45 million years old and are from Morocco. This shark is known from its fossilized teeth and vertebral centra. Like other elasmobranchs, the skeleton of Otodus was composed of cartilage and not bone, resulting in relatively few preserved skeletal structures appearing within the fossil record. The teeth of this shark are large with triangular crown, smooth cutting edges, and visible cusps on the roots. Some Otodus teeth also show signs of evolving serrations.
Green river has been noted for its well-preserved fish since mid-way through the 19th century. The unusually excellent preservation of the Green River fish fossils is usually attributed to a combination of two factors: 1) a cold period during the Eocene that would have caused dead fish to sink faster due to a less inflated swim bladder; and 2) the great depth of the lakes and the consequent anoxic conditions that would have often prevented scavengers from disturbing the carcasses.
White Spined Ammonite
Ammonoid, also called ammonite, any of a group of extinct cephalopods (of the phylum Mollusca), forms related to the modern pearly nautilus (Nautilus), that are frequently found as fossils in marine rocks dating from the Devonian Period (began 419 million years ago) to the Cretaceous Period (ended 66 million years ago).