Starfish are included in this group along with animals such as sea urchins
They are found singularly or in large groupings
Atlasaurus is represented by a single
Its teeth show advanced specialization for a herbivorous diet that is not found in any other type of early Permian animal
consisting mostly of limb bones and isolated cervical vertebrae and ribs
Mesolimulus walchi, Horseshoe Crab, small (Replica) Protoceratops Starfish are included in thisComing from the famous 150 million year old Jurassic Solnhofen Lithographic Limestone deposits near Eichstatt, Germany, this is a fine replica example of the Horseshoe Crab Mesolimulus walchi. Xiphosura, the horseshoe crabs, are related to the extinct Eurypterids, and more distantly to spiders and scorpions. Their lineage traces back to the Cambrian, and extends to modern times as the genus Limulus. This fossil is of a similar genus known as