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Message:: [QUOTE="Parthicus, post: 2624000, member: 81887"][USER=76111]@Carthago[/USER] : Sadly you are correct, the type specimen (first one scientifically described) of Spinosaurus was destroyed in WWII when a stray bomb hit the museum in Berlin.  There are photos of those original fossils, and further remains have been found in Northern Africa, but some knowledge has probably been lost forever. [USER=73358]@ro1974[/USER] :  I think the top "plant fossil" you posted looks more like a dendrite, a non-fossil mineral formation of manganese crystals that grows in a branching pattern that resembles plants.  Still pretty cool, even if it's not a fossil.  (Fossils, by definition, are the remains or traces of ancient life, while dendrites form purely by chemical action.) [USER=76194]@Sallent[/USER] : If you want to find pre-Cambrian fossils on the market, your best bet is to look for a stromatolite (a rather plain-looking lump that is formed by algal mats). Not very glamorous, but even worm trails aren't common before the Cambrian. [USER=72818]@Mikey Zee[/USER] : I do have one fossil of a synapsid (mammal-like reptile), a small piece of the dorsal sail from Edaphosaurus, a plant-eating relative of the much more famous carnivore Dimetrodon.  Here's my fossil, from Texas:[ATTACH=full]576129[/ATTACH] And a reconstruction of the animal in life:[ATTACH=full]576130[/ATTACH] (Image source: Public domain, via Wikipedia)[/QUOTE]