Tabulate corals from the Lower Silurian of Jämtland (Sweden)
DOI | 10.1080/11035890401264339 |
---|---|
Aasta | 2004 |
Ajakiri | GFF |
Köide | 126 |
Number | 4 |
Leheküljed | 339-352 |
Tüüp | artikkel ajakirjas |
Eesti autor | |
Keel | inglise |
ISSN | 1103-5897 |
Id | 2319 |
Abstrakt
The tabulate species of the genera Paleofavosites, Favosites, Parastriatopora, Propora, Aulopora and Catenipora recorded in Jämtland, Sweden, Scandinavian Caledonides, are taxonomically revised. Biometrics is used for species definition. The intraspecific variability is considered, and the analyses of type material and other similar specimens from Estonia are included in the taxonomical section. The neotype of Catenipora distans is illustrated and remeasured together with two other specimens from the same locality. Paleofavosites primus is synonymised with P. hystrix and Favosites favosiformis is synonymised with F. favosus. Several species are tentatively synonymized, what mostly demonstrates the problem of typological species in Baltoscandia. The tabulates known from Jämtland are also found in Estonia. The close relation of the development of tabulate faunas in both areas is suggested. The stratigraphical position of the Ede Formation at Ede, and the Berge Formation at Verkön and Norderön is discussed, comparing the tabulate successions from Jämtland and Estonia. The tabulate record from the Berge Formation proves the Aeronian age of the unit.