Výsledky vyhledávání

A new Late Olenekian (Triassic) ammonoid of low palaeolatitude affinity from Arctic Asia (Eastern Taimyr)

Autor: Algirdas S. Dagys

Publikováno v: Paläontologische Zeitschrift. 71:217-220

The new exotic ammonoid genusByrrangoceras is described from the Upper Olenekian of the Boreal Triassic (Arctic Siberia). The phylogenetic affinities and palaeobiogeographic distribution of the new genus are discussed.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c371ebd1a25c7463a4734e9368604a1b
https://doi.org/10.1007/bf02988490

Zobrazit plný text záznamu

Extensive intraspecific variation in a Triassic ammonoid from Siberia

Autor: Algirdas S. Dagys, Wolfgang Weitschat

Publikováno v: Lethaia. 26:113-121

The ammonoid species Czekanowskites rieberin.sp. from the Lower Anisian of Arctic Siberia (River Olenek) shows an enormous range of intraspecific variability. The 700 investigated specimens are packed in one single concretion. They are all adult with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45138bf4f04e45c16ae8d4bde4a05f20
https://doi.org/10.1111/j.1502-3931.1993.tb01801.x

Zobrazit plný text záznamu

Geographic differentiation of Triassic brachiopods

Autor: Algirdas S. Dagys

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 100:79-87

The main palaeobiogeographic patterns and trends of Triassic brachiopods are analysed. During the Triassic taxonomic diversity of brachiopods increased and this was accompanied by intensification of their geographic differentiation. Thus, the maximum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ecec0ccaa1a76ee7d89a56a67c3d4ab9
https://doi.org/10.1016/0031-0182(93)90033-f

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání