conodonts
1Conodont — Conodonts Temporal range: 495–199.6 Ma …
2conodont — /koh neuh dont , kon euh /, n. a Paleozoic microfossil occurring in various jagged or toothlike shapes and constituting the hard remains of an extinct marine animal of the order Conodonta (or Conodontophorida), found abundantly worldwide in… …
3polychaete hypothesis — ▪ paleontology theory that conodonts (minute toothlike structures found as fossils in marine rocks) are parts of the jaw apparatus of polychaete worms, a class of the annelid, or segmented, worms. Conodonts resemble the jaws (scolecodonts)… …
4Richard Aldridge — Infobox Scientist name = Richard Aldridge caption = birth date = birth place = death date = death place = residence = England flagicon|England nationality = British flagicon|UK field = Palaeontology work institution = University of Leicester alma …
5Конодонты — ? † Конодонты …
6Конодонт — ? † Конодонты Пять разных реконструкций внешнего облика конодонтоносителей (по разным авторам) Научная классификация Царство: Животные Тип: Хордовые …
7Конодонтофора — ? † Конодонты Пять разных реконструкций внешнего облика конодонтоносителей (по разным авторам) Научная классификация Царство: Животные Тип: Хордовые …
8Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …
9Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… …
10Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… …
