Open AccessPaleoecology of the Mollusca of the Tjörnes sequence, Iceland
Author(s) -
NORTON PETER E. P.
Publication year - 1975
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.1975.tb00682.x
Subject(s) - geology , fauna , pleistocene , paleontology , arctic , boreal , oceanography , structural basin , paleoecology , ecology , biology
A long sequence of open‐coast tidal flat deposits with a restricted, mainly boreal fauna, comprises the Tapes and Mactra Zones. Characteristic species are Venerupis aurea, Spisula arcuata, Arctic islandica and Lentidium complanatum . This stage is provisionally correlated with the Upper Pliocene of the North Sea Basin. During the time of deposition of the Serripes Zone the basin apparently deepened and the fauna greatly diversified with immigration of arctic elements. It went back finally to beach‐deposit conditions. The characteristic species — Serripes groenlandicus, Macoma praetenius , and Beta borealis — are also characteristic of the Early Pleistocene of the North Sea Basin with which the Serripes Zone is provisionally correlated. The climate is interpreted as having been colder than that of the Tapes and Mactra zones. A preliminary list of the Mollusca is given.