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Confirmation of the poriferan status of favositid tabulates

100%

Kazmierczak J.

Acta Palaeontologica Polonica

1994

tom 39

nr 3

233-245

Regulation of astogeny in halysitid tabulates

100%

Hammer O.

Acta Palaeontologica Polonica

1998

tom 43

nr 4

635-651

The question of whether branching and budding in halysitid tabulate corals was regulated by the availability of nutrients or exposure to waste products is important for taxonomy. Moreover, such regulation could have implications for paleoenvironmental interpretation. Although the statistical and morphological evidence presented here is not unequivocal, it is suggested as a working hypothesis that halysitid astogeny was indeed regulated. This would be in accordance with current theories on the growth of Recent corals and sponges. The simulation results are used to reevaluate functional advantages of the regulation of the halysitid colony.

Silurian aphrosalpingid sphinctozoans from Alaska and Russia

88%

Rigby J. K., Nitecki M. H., Soja C. M., Blodgett R. B.

Acta Palaeontologica Polonica

1994

tom 39

nr 4

341-391

Middle and Late Devonian sponge spicules of the Holy Cross Mountains and Silesian Upland

88%

Hurcewicz H.

Acta Palaeontologica Polonica

1992

tom 37

nr 2-4

291-296

Calcareous octactinellid sponge spicules are abundant in the Givetian and early Frasnian organic buildups in the Holy Cross Mts and Siewierz anticline, Silesian Upland. Monaxone-bearing siliceous Demospongea (or ?lyssakid Hyalospongea) occupied coeval quiet-water basin habitats. Significant reorganization within these generally deeper-water associations occurred late in the Frasnian (a local rise of the lithistids associated with dictyids and lyssakids) and early in the Famennian (profusion of Hyalospongea).

Wielka rafa niekoralowa

50%

Problemy

1992

nr 07

Ograniczanie wyników

4 Acta Palaeontologica Polonica

1 Problemy

1 Blodgett R. B.

1 Hammer O.

1 Hurcewicz H.

1 Kazmierczak J.

1 Nitecki M. H.

1 Rigby J. K.

1 Soja C. M.

1 hd

1 1998

2 1994

2 1992

Wyniki wyszukiwania

Confirmation of the poriferan status of favositid tabulates

Regulation of astogeny in halysitid tabulates

Silurian aphrosalpingid sphinctozoans from Alaska and Russia

Middle and Late Devonian sponge spicules of the Holy Cross Mountains and Silesian Upland

Wielka rafa niekoralowa