a new species of Tynskya Mayr, 2000 (Aves, Messelasturidae) from the LondonClay highlights the osteological distinctness of a poorly known early Eocene
Animals. London: Marshall Editions. 1999: 75. ISBN 1-84028-152-9. Seeley, HG. 1874. On Murænosaurus Leedsii, a Plesiosaurian from the Oxford Clay. Part