Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-3-6399-5187-5 |
Объём: | 96 страниц |
Масса: | 166 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! Xenusion is a possible very primitive arthropod/onychophore known from two specimens found in glacial debris in Germany. They probably originated in the Kalmarsund Sandstone of Southern Sweden (Jaeger and Martinsson 1966) and are probably late Neoproterozoic. The specimens are not especially well preserved. The older specimen is 10 cm or so in length with a narrow, weakly segmented body. A depression runs up the bottom on all but the rearmost segments. There is a slightly bulbous tail, and each segment beyond that seems to have a single pair of tapering annulated legs similar to the modern onychophore, but without claws. Nine segments are present.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.