Wyniki wyszukiwania

Filtruj wyniki

  • Czasopisma
  • Autorzy publikacji
  • Słowa kluczowe
  • Data
  • Typ

Wyniki wyszukiwania

Wyników: 2
Wyników na stronie: 25 50 75
Sortuj wg:

Abstrakt

Trace fossils Phymatoderma melvillensis isp. nov., Thalassinoides isp., ?Nereites isp. and Planolites isp. are reported from the glacio−marine sediments of the Cape Melville Formation (Lower Miocene) of King George Island, West Antarctica. Their occurrence and strong bioturbation of sediments point to an offshore or deeper (outer shelf or upper slope) en− vironment. Deep marine crab Antarctidromia inflata Förster, 1985, has been found in Thalassinoides isp. The tracemaker (?crustacean) of Phymatodermamelvillensis re−reworked pelletal sediments probably during times of food deficiency.
Przejdź do artykułu
Słowa kluczowe Arctic Svalbard crinoid Permian

Abstrakt

An early Permian (late Artinskian–Roadian) cladid crinoid (Catacrinidae gen. et sp. indet.) is reported for the first time from the V ø ringen Member of the Kapp Starostin Formation of Spitsbergen. The specimen is partly articulated and preserves a considerable part of its stalk and a complete cup, but only the proximal portions of its arms. Thus, it cannot be identified with any degree of certainty at the generic level. Despite this, our finding is important as it constitutes one of the youngest records of catacrinid crinoids to date and considerably extends the palaeogeographic distribution of this group.
Przejdź do artykułu

Ta strona wykorzystuje pliki 'cookies'. Więcej informacji