Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Algirdas S. Dagys"'
Autor:
Algirdas S. Dagys, Helmut Keupp
Publikováno v:
Zeitschrift der Deutschen Geologischen Gesellschaft. 149:81-89
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb207b54d5f16b004c5f79f4c8dd0207
https://doi.org/10.1127/zdgg/149/1998/81
https://doi.org/10.1127/zdgg/149/1998/81
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
https://doi.org/10.1007/bf02988490
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
https://doi.org/10.1111/j.1502-3931.1993.tb01801.x
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
https://doi.org/10.1016/0031-0182(93)90033-f
Autor:
Wolfgang Weitschat, Algirdas S. Dagys
Publikováno v:
Geobios. 26:107-109
Investigations on ammonoid assemblages from the boreal Triassic of NE-Siberia and Spitsbergen allow to give information on ecology. Special attention is drawn to the enormous, intraspecific variation and its consequences for ammonoid ecology and taxo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1702255d30e9eaae922d33ce3c2eb75a
https://doi.org/10.1016/s0016-6995(06)80365-7
https://doi.org/10.1016/s0016-6995(06)80365-7
Autor:
Algirdas S. Dagys
Publikováno v:
Advancing Research on Living and Fossil Cephalopods ISBN: 9781461371939
Phenotypic history, modes of evolution and taxonomic relationships of the Late Olenekian family Sibiritidae, including five successive genera (Boreoceras, Epiboreoceras, Praesibirites, Parasibirites and Sibirites) are discussed. Detailed scheme of bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7e4b0cde757c1f72137b56f52d6c447
https://doi.org/10.1007/978-1-4615-4837-9_9
https://doi.org/10.1007/978-1-4615-4837-9_9
Publikováno v:
Paläontologische Zeitschrift. 63:41-53
A b s t r a c t: The present state of knowledge concerning the function of anaptychi, aptychi, and opercula of ammonoids is reviewed. The jaw apparati found associated with the lytoceratid genera Gaudryceras and Tetragonites by KANI~ et al. (1978) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9957784fcb875ee446130acf31db3ae
https://doi.org/10.1007/bf02989525
https://doi.org/10.1007/bf02989525