The Ancient Mesosaurus

The name 'Mesosaurus' means:

• Middle lizard

• Ancient fish

• Giant reptile

• Sea monster

Where have Mesosaurus fossils been found?

• Antarctica and Africa

• North America and South America

• India and Africa

• South America and Africa

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

Mesosaurus were among the first reptiles to live in and around water, but their bodies weren't built for swimming long distances.

• True

• False

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Fill in the blank: Mesosaurus had webbed feet and grew to about _______ meter (3.3 feet) long.

• 1

• 2

• 0.5

• 1.5

Mesosaurus breathed while spending most of their lives in water by:

• using gills like fish

• holding their breath for long periods

• surfacing to breathe air

• absorbing oxygen through their skin

Tags

NGSS.MS-LS4-2

The mineralized remains of organisms, showing how long-dead organisms lived and how their bodies were structured

• law of superposition

• sedimentary layers

• fossils

• petrification

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

preserved remains or traces of ancient organisms

• Scat

• Fossils

• Rocks

• Crystals

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Two physical features of Mesosaurus are (a)   ​

• Narrow head and lungs
• Wings and Gills

Tags

NGSS.MS-LS4-2

What is another word for "embedded"?

• implanted

• sleep

• lizard

• extract

True or False. Mesosaurus could fly.

• True

• False