Autor: Vinn, O. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Crinoids from the Silurian of Western Estonia
Autorzy:: Ausich, W.I.
Wilson, M.A.
Vinn, O.
Powiązania:: https://bibliotekanauki.pl/articles/21031.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: crinoid
Silurian
Western Estonia
Estonia
Echinodermata
Crinoidea
Pridoli
paleontology
new species
Calceocrinus balticensis
Desmidocrinus laevigatus Eucalyptocrinites tumidus
Saaremaacrinus estoniensis
Opis:: The Silurian crinoids of Estonia are re−evaluated based on new collections and museum holdings. Nineteen species−level crinoid taxa are now recognized. All crinoid names applied to Estonian Silurian crinoids during the middle 19th century are disregarded. Especially significant is the fauna reported herein from the Pridoli because coeval crinoids are very poorly known from the Baltic region and elsewhere. One new genus and four new species are described from Estonia, namely Calceocrinus balticensis sp. nov., Desmidocrinus laevigatus sp. nov., Eucalyptocrinites tumidus sp. nov., and Saaremaacrinus estoniensis gen. et sp. nov.
Źródło:: Acta Palaeontologica Polonica; 2012, 57, 3
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: A new microconchid tubeworm from the Artinskian (Lower Permian) of central Texas, USA
Autorzy:: Wilson, M.A.
Vinn, O.
Yancer, T.E.
Powiązania:: https://bibliotekanauki.pl/articles/20377.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:: Calcareous tubeworms are common in the Artinskian (Lower Permian) shale and limestone rocks of the Wichita−Albany Group in central Texas. In some units they form small reefs of budding tubes spreading outward from a common origin. These tubular fossils have been traditionally referred to as serpulids, but here we identify them as microconchids (Helicoconchus elongatus gen. et sp. nov.) These microconchids are unusual because of their greatly elongated impunctate tubes with centrally pitted diaphragms. They also show two types of budding: lateral with small daughter tubes that begin as small coils, and binary fission that produced two daughter tubes of equal diameters. These microconchids flourished in shallow marine environments with a fauna dominated by mollusks, echinoids, and foraminifera.
Źródło:: Acta Palaeontologica Polonica; 2011, 56, 4
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

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