Steneosaurus bollensis | Holzmaden, Germany chatoyant Ammonites are excellent index fossils

Ammonites are excellent index fossils

squirting water to move

They are an ancient fossil group that first appeared in the seas of the mid Cambrian

Microstructural design of the stalk in the crinoid Seirocrinus supports its pseudoplanktonic lifestyle

Mars Rock: A piece of the Mars meteorite NWA 12269 (Shergottite)

Steneosaurus bollensis | Holzmaden, Germany chatoyant Ammonites are excellent index fossilsSteneosaurus bollensis Jurassic, Lias Epsilon, 180 million years old Urweltsteinbruch Holzmaden Quarry Holzmaden, Germany Size: H10o cm W100 cm D5 cm H39. 37 in W39. 37 in D1. 97 in DESCRIPTION Steneosaurus bollensis is a classic marine crocodile from the Lower Jurassic Posidonia Shale of Holzmaden, southern Germany. Preserved within the famous Lias Epsilon deposits, this specimen dates to approximately 180 million years ago, a time when warm, shallow