The climatic changes of the late Jurassic and Cretaceous provided for further adaptive radiation. The Jurassic was the height of archosaur diversity, and the first birds and eutherian mammals also appeared. Angiosperms radiated sometime in the early Cretaceous, first in the tropics, but the even temperature gradient allowed them to spread toward the poles throughout the period. By the end of the Cretaceous, angiosperms dominated tree floras in many areas, although some evidence suggests that biomass was still dominated by cycad and ferns until after the CretaceousPaleogene extinction.
When was the top of archosaur diversity?
Jurassic

He moved rapidly. First, he promoted Confucian orthodoxy and reversed what he saw as his father's laxness by cracking down on unorthodox sects and by decapitating an anti-Manchu writer his father had pardoned. In 1723 he outlawed Christianity and expelled Christian missionaries, though some were allowed to remain in the capital. Next, he moved to control the government. He expanded his father's system of Palace Memorials which brought frank and detailed reports on local conditions directly to the throne without being intercepted by the bureaucracy, and created a small Grand Council of personal advisors which eventually grew into the emperor's de facto cabinet for the rest of the dynasty. He shrewdly filled key positions with Manchu and Han Chinese officials who depended on his patronage. When he began to realize that the financial crisis was even greater than he had thought, Yongzheng rejected his father's lenient approach to local landowning elites and mounted a campaign to enforce collection of the land tax. The increased revenues were to be used for "money to nourish honesty" among local officials and for local irrigation, schools, roads, and charity. Although these reforms were effective in the north, in the south and lower Yangzi valley, where Kangxi had wooed the elites, there were long established networks of officials and landowners. Yongzheng dispatched experienced Manchu commissioners to penetrate the thickets of falsified land registers and coded account books, but they were met with tricks, passivity, and even violence. The fiscal crisis persisted.
What religion did Yongzheng ban?
Christianity

He assumed duties again at Camp Meade, Maryland, commanding a battalion of tanks, where he remained until 1922. His schooling continued, focused on the nature of the next war and the role of the tank in it. His new expertise in tank warfare was strengthened by a close collaboration with George S. Patton, Sereno E. Brett, and other senior tank leaders. Their leading-edge ideas of speed-oriented offensive tank warfare were strongly discouraged by superiors, who considered the new approach too radical and preferred to continue using tanks in a strictly supportive role for the infantry. Eisenhower was even threatened with court martial for continued publication of these proposed methods of tank deployment, and he relented.
When did Eisenhower leave Camp Meade?
1922