Large multi-biotic cyanoliths from relatively deep-water facies in the early Serpukhovian of SW Spain

  title={Large multi-biotic cyanoliths from relatively deep-water facies in the early Serpukhovian of SW Spain},
  author={Pedro C{\'o}zar and Sergio Rodr{\'i}guez and Ian D. Somerville},
SummaryLarge cyanoliths reaching up to 12 cm in size and mainly prolate, discoidal and spheroidal in shape occur in early Serpukhovian rocks from the San Antonio-La Juliana Unit (Guadiato Area, SW Spain). The main component in the cyanoliths is Girvanella, but other important components are the problematic-algae Sparaphralysia, Calcifolium and crustose Fasciella. A diverse assemblage of invertebrates, algae and aoujgaliids also occur in the cyanoliths. The internal structure of cyanoliths shows… 

Early Serpukhovian (late Mississippian) microflora from the Guadiato Area (southwestern Spain)

  • P. Cózar
  • Environmental Science, Geography
  • 2005
Calcareous microflora occur commonly in the early Serpukhovian (late Mississippian) rocks from the Guadiato Area (southwestern Spain) despite the fact that this area contains mostly siliciclastic


Abstract The upper Viséan–lower Serpukhovian Roque Redonde Formation in the southern part of the Montagne Noire, SW France, contains carbonate mounds with predominant micropeloidal facies tens of

Biostratigraphy, microfacies and depositional environments of upper Viséan limestones from the Burren region, County Clare, Ireland

The Burren region in western Ireland contains an almost continuous record of Viséan (Middle Mississippian) carbonate deposition extending from Chadian to Brigantian times, represented by three

Palaeoenvironmental analysis based on rugose corals and microfacies: a case study at La Cornuda section (early Serpukhovian, Guadiato Area, SW Spain)

Combined analysis of microfacies and rugose coral features provides a useful tool for palaeoenvironmental studies in areas where outcrops are not appropriate for field observations. A detailed study

Yakhtashian (Artinskian–Early Kungurian) cyanobacteria and calcareous algae from the Carnic Alps (Austria/Italy)

The Lower Permian calcareous algae are revised in the Zweikofel, Zottachkopf and Trogkofel formations of the Carnic Alps (Austria–Italy border) and the phylloid algae are formally assigned to the family Anchicodiaceae emend.



Pendleian (early Serpukhovian) marine carbonates from SW Spain: sedimentology, biostratigraphy and depositional model

The San Antonio–La Juliana tectono‐sedimentary unit contains the only Namurian marine carbonates in the southwestern part of the Iberian Peninsula. The analysis of this unit is fundamental in

Peyssonnelid Rhodoliths from the Late Pleistocene Ironshore Formation, Grand Cayman, British West Indies

Abstract Rhodoliths from the Late Pleistocene Ironshore Formation in the Crystal Harbour area on the western part of Grand Cayman, which are up to 14 cm long, are characterized by thick cortices that

Depth-related ecological zonation of a carboniferous carbonate ramp: Upper Viséan of Béchar Basin, Western Algeria

SummaryFollowing the demise of the stromatoporoid-coral reef community in Late Frasnian time, Lower Carboniferous carbonate shelf profiles possessed a ramp geometry, with major organic buildups

Stratigraphic position and facies significance of the limestone bands in the subsurface Carboniferous succession of the Lublin Upland

The Carboniferous paraIic succession (late Visean - Westphalian A ) of the subsurface Lublin Basin in eastern Poland yields carbonate deposits, which dominate in the Visean phase of sedimentation,

The stratigraphy and cyclicity of the late Dinantian platform carbonates in parts of southern and western Ireland

  • S. Gallagher
  • Geography, Environmental Science
    Geological Society, London, Special Publications
  • 1996
Abstract The late Dinantian platform carbonate successions of the Burren, Buttevant and Callan areas in Ireland have been correlated using detailed litho- and biostratigraphy. Several subdivisions or

Tetrataxis: a loosely attached limpet‐like foraminifer from the Upper Palaeozoic

Associations of Tetrataxis preserved in situ and attached to a varicty of biogenic substrates are described from the Carboniferous of northern and central England. Environmental changes considered

Cyanoliths (Cyanoids): Oncoids Formed by Calcified Cyanophytes

A wide variety of calcareous nodules have been regarded as being probably formed by the activity of cyanophytes. Stromatolites too, are generally assumed to be mainly of cyanophyte origin. But it is