Paleonet: Calcareous algae and global change: from identification to quantification

Bruno Granier bruno.granier at
Mon Apr 2 11:49:31 GMT 2012

Dear Colleagues,
it is my pleasure to announce the publication of this special volume of 
You can either order a paper copy (239 p. • 38,29 €) or access the volume 
contents on internet because the publisher (MNHN Paris) is not a 
"commercial publishing house", because the journal is an open access 
journal (you only have to pay if you want to get the paper-printed version!).

Calcareous algae and global change: from identification to quantification
Daniela Basso & Bruno Granier (eds.)
This special issue of Geodiversitas compiles scientific contributions 
originally presented at the 6th Regional – European – Symposium of the 
International “Fossil Algae” Association (IFAA), Milan 2009. This symposium 
was jointly organized by the University of Milano-Bicocca and the 
University of Genova.
Eleven articles encompass many geological and paleontological aspects of 
red and green calcareous algae, including their current distribution and 
ISSN : 1280-9659 • 239 p. • 38,29 € TTC • mars 2012

To purchase this issue, please contact the bookshop of the Publication 
Ahmed Abdou
Publications scientifiques du Muséum national d'Histoire naturelle
case postale 41, 57 rue Cuvier
F-75231 Paris cedex 05 (France)
Tel. : +33 (0)1 40 79 48 05
email : at
Publications Scientifiques du Muséum

Click on the doi link of an article to download it (PDF)

Daniela BASSO & Bruno GRANIER
Calcareous algae in changing environments (5-11)
Daniela BASSO
Carbonate production by calcareous red algae and global change (13-33)
The contribution of calcareous green algae to the production of limestones: 
a review (35-60)
Abstract: Calcareous green algae (CGA) are an artificially united but 
highly heterogeneous group of large unicellular benthic algae with one 
character in common: all have the capability of secreting a calcareous 
coating on the outer side of the cytoplasmic envelope. Today, they are a 
major contributor to carbonate sedimentation at all scales from clay-sized 
particles (aragonitic needles) to coarser grains (sand and gravel) and even 
to plurimetric sedimentary structures. There are fossil analogues to the 
features listed above. Phycologists know best Halimeda, Penicillus, 
Acetabularia and Cymopolia; micropaleontologists and carbonate 
sedimentologists are most knowledgeable about Acicularia, Clypeina, 
Neoteutloporella, Salpingoporella, Anthracoporella, Boueina, and 
Eugonophyllum. The CaCO3 precipitated to form the coating is generally 
aragonite (the orthorhombic form) but there are short periods in the 
geologic record during which its calcite variant (the rhombohedric form) 
existed contemporaneously in discrete species. Recent studies on Halimeda 
have shown that some of the Bryopsidales have the capability to calcify 
strongly in the lower portion of the euphotic zone (where respiration 
becomes more important than photosynthesis in the process of 
mineralization) and to produce positive sedimentary reliefs (bioherms) in 
situ below the fair-weather wave base. Previous models of paleoenvironments 
considered the presence of Dasycladales or Bryopsidales to indicate 
shallow-water, that is the upper euphotic zone (from the sea surface down 
to –25 m), and predominantly low-energy, protected, lagoonal environments. 
When the algal remains were found in grain-supported facies, they were 
taken to have been subjected to dynamic transport and therefore indicative 
of high-energy environments of deposition. The new deeper-water finds have 
changed interpretations of the environments ascribed fossil algae. A 
current conception is that ancestral inarticulated Bryopsidales could have 
grown at depths as great as –120 m (near the base of the lower euphotic 
zone). This preliminary review concludes with suggestions about fields for 
continuing investigations.
Valentina Alice BRACCHI & Daniela BASSO
The contribution of calcareous algae to the biogenic carbonates of the 
continental shelf: Pontian Islands, Tyrrhenian Sea, Italy (61-76)
Alessandra SAVINI, Daniela BASSO, Valentina Alice BRACCHI, Cesare CORSELLI 
Maerl-bed mapping and carbonate quantification on submerged terraces 
offshore the Cilento peninsula (Tyrrhenian Sea, Italy) (77-98)
Jochen HALFAR, Markus EISELE, Bernhard RIEGL, Steffen HETZINGER & Lucio 
Modern Rhodolith-dominated carbonates at Punta Chivato, Mexico (99-113)
Julio AGUIRRE, Juan C. BRAGA, Jose M. MARTIN & Christian BETZLER
Palaeoenvironmental and stratigraphic significance of Pliocene rhodolith 
beds and coralline algal bioconstructions from the Carboneras Basin (SE 
Spain) (115-136)
Daniela BASSO, Francesca QUARANTA, Grazia VANNUCCI & Michele PIAZZA
Quantification of the coralline carbonate from a Serravallian rhodolith bed 
of the Tertiary Piedmont Basin (Stazzano, Alessandria, NW Italy) (137-149)
Coralline algae as environmental indicators: a case study from the Attard 
member (Chattian, Malta) (151-166)
Lucia SIMONE, Gabriele CARANNANTE, Davide BASSI & Antonietta CHERCHI
Rudist-bearing rhodalgal facies in the post- Turonian recovery of 
peri-Tethyan carbonate systems: a case history from the Nurra region 
(northwestern Sardinia, Italy) (167-187)
Hideko TAKAYANAGI, Yasufumi IRYU, Motoyoshi ODA, Tokiyuki SATO, Shun 
Temporal changes in biotic and abiotic composition of shallow-water 
carbonates on submerged seamounts in the northwestern Pacific Ocean and 
their controlling factors (189-217)
Ioan I. BUCUR & Emanoil SASARAN
Large dasycladalean algae from Upper Jurassic limestone deposits of the 
Apuseni Mountains (Romania) – habitat and depositional environment (219-239)

I hope you will enjoy these papers,
Bruno Granier
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