A Mosasaurus, an elongated reptile of the Mesozoic Era, the appearance of which is as fearsome as its name. This scraper-board drawing was based on data in S. W. Williston's 'Water Reptiles of the Past.'
A Mosasaurus, an elongated reptile of the Mesozoic Era, the appearance of which is as fearsome as its name. This scraper-board drawing was based on data in S. W. Williston's 'Water Reptiles of the Past.'