Twenty-seven Tertiary species belonging to the cosmopolitan reef-building scleractinian genus Actinacis, have been described in the literature. A detailed systematic revision has been carried out for Italian and European species by thin section measurements. A combination of several measured corallite morphologic characters and diagnostic features is proposed as a realiable tool for species recognition. Preliminary examination of the stratigraphic and geographic distribution of Actinacis species suggests that: 1) the Tertiary distribution of the genus ranges from the Late Paleocene to the Late Oligocene; 2) the highest species diversity occrred during the Middle Eocene, when the genus consisted of a relatively large number of geographically restricted species; 3) only two widespread species survived the Eocene/Oligocene turnover and reached the Late Oligocene, when the genus became globally extinct.
The Scleractinian genus Actinacis. Systematic revision and stratigraphic record of the Tertiary species with special regard to Italian occurrences / Bosellini, Francesca; Russo, A.. - In: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA. - ISSN 0035-6883. - STAMPA. - 101 (2)(1995), pp. 215-230.
Data di pubblicazione: | 1995 |
Titolo: | The Scleractinian genus Actinacis. Systematic revision and stratigraphic record of the Tertiary species with special regard to Italian occurrences. |
Autore/i: | Bosellini, Francesca; Russo, A. |
Autore/i UNIMORE: | |
Rivista: | |
Volume: | 101 (2) |
Pagina iniziale: | 215 |
Pagina finale: | 230 |
Codice identificativo Scopus: | 2-s2.0-0029474941 |
Citazione: | The Scleractinian genus Actinacis. Systematic revision and stratigraphic record of the Tertiary species with special regard to Italian occurrences / Bosellini, Francesca; Russo, A.. - In: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA. - ISSN 0035-6883. - STAMPA. - 101 (2)(1995), pp. 215-230. |
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