Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Heterocorallia

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Carboniferous Rugosa and Heterocorallia from boreholes in the Lublin region (Poland)

100%

Khoa N. D.

Acta Palaeontologica Polonica

1977

tom 22

nr 4

Fourty two species referred to 21 genera and 2 subgenera are described; one genus and 5 species are new: Diphyphyllum rarevesiculosum sp.n., Lithostrotion (Siphonodendron) dobrolyubovae sp.n., L. (S.) rossicum strzelcense subsp.n., L. (S.) rossicum parvum subsp.n., Lublinophyllum fedorowskii gen. et sp.n. Genera Orionastraea and Turbinatocaninia are for the first time recorded in Poland. Heterophyllidae with 5 septa and pentagonal cross-section are recorded. Blastogeny has been studied in 13 species and subspecies. Axial increase has been studied in detail in Lithostrotion (Siphonodendron) dobrolyubovae sp.n. Taxonomic division of Rugosa based on blastogeny, is demonstrated to be questionable in some cases. Fusion of corallites has been observed in colonies of Lithostrotion and Lonsdaleia colonies. Existence of holotheca in Orionastraea aff. magna Kato & Mitchell has been proved.

A new Middle Devonian heterocoral from Spain

84%

Fernandez-Martinez E., Tourneur F., Lopez-Alcantara A.

Acta Palaeontologica Polonica

2003

tom 48

nr 4

Most of the heterocorals described up to now from strata older than Famennian are of doubtful affinities. Numerous specimens of the new genus and new species here described were collected during a sedimentological study of the Santa Lucía Formation in La Pola de Gordon (León province, Cantabrian Mountains, NW Spain). Stellaphyllia luciensis gen. et sp. nov. is characterized by cylindrical coralla, with a diameter of less than 2 mm and more than 2 cm long, having stellate to more or less rounded outer profile. Four to six septa, less frequently seven, are cojoined axially by a short oblique septum. The few tabulae present are steeply arched. The microstructure of the septa and interseptal elements shows thin elongate microlamellae parallel to a median plate which is granular in appearance. The new genus dated to the lower Eifelian age could be important in understanding the early phylogeny and origin of the order Heterocorallia.

Ograniczanie wyników

2 Acta Palaeontologica Polonica

1 Fernandez-Martinez E.

1 Khoa N. D.

1 Lopez-Alcantara A.

1 Tourneur F.

1 2003

1 1977

Wyniki wyszukiwania

Carboniferous Rugosa and Heterocorallia from boreholes in the Lublin region (Poland)

A new Middle Devonian heterocoral from Spain