Four new species of cheilostomate Bryozoa encrusting rhodoliths on Maërl beds are described from material collected at a single locality at Madeira Island. These are Coronellina atlantica n. sp., Hippothoa muripinnata n. sp., Chorizopora rosaria n. sp. and Hippoporella maderensis n. sp. A species of Schizomavella is left in open nomenclature. The genus Coronellina is transferred from the family...

Shallow-water rhodolith beds are rare in the Mediterranean Sea and generally poorly known. The Punta de la Mona bed extends for 16,000 square meters shallow oligotrophic waters at southern coast of Spain, off Almuñecar Alborán Sea. We present a detailed analysis structure (rhodolith cover density, size shape, sediment granulometry) morphospecies composition along depth gradient. A stratified sa...

The green alga Caulerpa cylindracea Sonder (Chlorophyta; Bryopsidales) is one of the most invasive alien macroalgae in Mediterranean Sea, where it also spreading on rhodolith beds, an important biogenic assemblage typical deep substrates. Despite importance rhodoliths, data competitive interactions with C. are still scarce. To deepen knowledge topic, occurrence bed Capo Carbonara Marine Protect...

(First record of Reticulocaulis mucosissimus I. A. Abbott (Naccariaceae, Rhodophyta) for the western Atlantic Ocean). Espírito Santo State lies in the transition region (18°-21° S) between the tropical and subtropical marine-algal provinces and is considered the richest area of the Brazilian fl ora. The subtidal substratum presents extensive areas of rhodoliths associated with a diversifi ed ma...

We investigated rhodoliths (coralline red algae) from a subtropical ocality in the Gulf of California (Lithotharnniurn crassiusculurn) and a subarctic locality in Newfoundland (Lithotharnniurn glaciale) for their potential as paleoenvironmental rchives using microanalytical geochemical techniques tomeasure variations in ;5•80, Mg, and Ca. Rhodoliths are potentially well suited as recorders of s...

Rhodolith limestones occur in the upper part of Miocene infill Ronda Basin southern Spain. This basin was an embayment at margin Atlantic-linked Guadalquivir Basin, foreland Betic Cordillera. Messinian rhodolith crop out mesa Roman settlement Acinipo. They mostly consist trough cross-bedded rudstones, which change basinward to large-scale planar turn pass laterally and flat-bedded bryozoan ruds...