2 Rhodolith forming coralline algae in the Upper Miocene of Santa Maria Island (Azores, NE Atlantic): a critical evaluation

被引:24
作者
Rebelo, Ana Cristina [1 ,2 ,3 ,4 ]
Rasser, Michael W. [4 ]
Riosmena-Rodriguez, Rafael [5 ]
Neto, Ana Isabel [1 ,6 ,7 ]
Avila, Sergio P. [1 ,2 ,3 ,8 ]
机构
[1] Univ Acores, Dept Biol, Azores, Portugal
[2] Univ Acores, Dept Biol, Polo Acores,InBIO Lab Associado, CIBIO Ctr Invest Biodiversidade & Recursos Genet, P-9501801 Ponta Delgada, Acores, Portugal
[3] Univ Azores, MPB Marine Palaeobiogeog Working Grp, Ponta Delgada, Portugal
[4] SMNS Staatliches Museum Nat Kunde Stuttgart, D-70191 Stuttgart, Germany
[5] Univ Autonoma Baja California Sur, Dept Biol Marina, Programa Invest Bot Marina, La Paz 23080, Bcs, Bolivia
[6] Univ Porto, Interdisciplinary Ctr Marine & Environm Res CIIMA, P-4050123 Oporto, Portugal
[7] Univ Azores, CIRN, Ponta Delgada, Portugal
[8] Univ Porto, Fac Ciencias, P-4169007 Oporto, Portugal
关键词
Fossil algae; Oceanic Islands; Rhodoliths; Corallinales (Rhodophyta); RHODOPHYTA; SYSTEMATICS; SPONGITES; PALEOECOLOGY; REPRODUCTION; ARCHIPELAGO; DIVERSITY; OSTRACODS; PATTERNS; NOV;
D O I
10.11646/phytotaxa.190.1.22
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The Late Miocene Malbusca outcrop is located in the southeastern coast of Santa Maria Island (Azores, NE Atlantic), interspersed in volcanic formations. At similar to 20 meters above present sea level, a prominent discontinuous layer of rhodoliths seizes with an extension of similar to 250 meters. This paper presents the first taxonomic record of fossil rhodolith forming coralline algae for the Miocene of the Azores. The preserved taxonomic features used were the following: (1) arrangement of basal filaments, (2) epithallial cells (when observable), (3) presence of cell fusions, (4) conceptacle type, (5) number of cells layers which conceptacle chamber floors are situated below the surrounding thallus surface and (6) for the sporangial pores, the orientation of the filaments around the conceptacle pores. Based on these characters, six taxa were identified encompassing three Corallinaceae (Lithophyllum prototypum, Lithophyllum sp., Spongites sp. and Hydrolithon sp.) and one Hapalidaceae (Phymatolithon calcareum and of. Phymatolithon sp.). An unidentified coaxial thallus was also present, the coaxial construction ascribing the specimens to the genus Mesophyllum or Neogoniolithon. Taxonomic accounts for the identified taxa are described, illustrated and an identification key is provided. The report of L. prototypum represents the first Miocene record and the preservation of the specimens is very good. Miocene coralline algae seem very consistent among deposits but some species are relevant for particular areas, like in the Azores.
引用
收藏
页码:370 / 382
页数:13
相关论文
共 54 条
[1]  
ADEY WH, 1973, GEOL SOC AM BULL, V84, P883, DOI 10.1130/0016-7606(1973)84<883:CCAARI>2.0.CO
[2]  
2
[3]   STRUCTURE AND REPRODUCTION OF SPONGITES-WILDPRETII SP-NOV (CORALLINACEAE, RHODOPHYTA) FROM THE CANARY ISLANDS, WITH OBSERVATIONS AND COMMENTS ON SPONGITES-ABSIMILE COMB-NOV [J].
AFONSOCARRILLO, J .
BRITISH PHYCOLOGICAL JOURNAL, 1988, 23 (01) :89-102
[4]  
Aguirre J, 2000, PALEOBIOLOGY, V26, P651, DOI 10.1666/0094-8373(2000)026<0651:DOCRAO>2.0.CO
[5]  
2
[6]  
Aguirre J., 1993, Bull. Soc. Paleontol. Ital. Spec, V1, P1
[7]   Palaeoenvironmental and stratigraphic significance of Pliocene rhodolith beds and coralline algal bioconstructions from the Carboneras Basin (SE Spain) [J].
Aguirre, Julio ;
Braga, Juan C. ;
Martin, Jose M. ;
Betzler, Christian .
GEODIVERSITAS, 2012, 34 (01) :115-136
[8]   Patterns of diversity of the north-eastern Atlantic blenniid fish fauna (Pisces: Blenniidae) [J].
Almada, VC ;
Oliveira, RF ;
Gonçalves, EJ ;
Almeida, AJ ;
Santos, RS ;
Wirtz, P .
GLOBAL ECOLOGY AND BIOGEOGRAPHY, 2001, 10 (04) :411-422
[9]  
Amen R. G., 2005, Revista Espanola de Micropaleontologia, V37, P63
[10]  
[Anonymous], 1988, BRIT MUSEUM NATURAL