Elrathia is a genus of trilobite species that lived during the Middle Cambrian of Utah, and possibly British Columbia. E. kingii is one of the most common trilobite fossils in the USA locally found in extremely high concentrations within the Wheeler Formation in the U.S. state of Utah. E. kingii...

Mars Rock (Martian Meteorite) Each display contains a genuine martian meteorite specimen on a card with a brief description on the back. The fragment on this card is from an authenticated Lunar Metorite. The planet Mars is half the diameter of Earth with 1/3 of Earth's gravity. It has a...

Moon Rock Lunar Meteorite The moon is 1/4 the diameter of Earth and about 238,000 miles away. Mankind has only been to the Moon 6 times during the Apollo missions. Occasionally large meteor impacts on the Mn will launch lunar rocks into space out of the Moon's gravity well; some...

Mosasaurs (from Latin Mosa meaning the 'Meuse river', and Greek σαύρος sauros meaning 'lizard') are large, extinct, marine reptiles. The first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. Mosasaurs probably evolved from semiaquatic squamates[1] known as aigialosaurs, which were more similar in...

Otodus obliquus, previously known as Lamna obliqua was one of the earliest mackerel sharks. Their teeth are noted for their wide triangular crown and large side cusps (occasionally multiple side cusps). Large Otodus obliquus teeth are not easily located in the phosphate pits in Atlas Mountains of Morocco, but can...