RT Journal Article
T1 Extreme habitat adaptation by boring bivalves on volcanically active palaeoshores from North Atlantic Macaronesia
A1 Santos, Ana
A1 Johnson, Markes
A1 Baarli, Gudveig
A1 Cachão, Mario
A1 Marques da Silva, Carlos
A1 Ledesma-Vázquez, Jorge
A1 Mayoral Alfaro, Eduardo
K1 Paleoicnología
K1 Paleontología
AB Extensive bivalve borings are described in detail for the first time from basalt rockgrounds in the North Atlantic volcanic islands of Macaronesia. They occur on a Middle Miocene rocky shore of a small islet of Porto Santo (Madeira archipelago of Portugal), as well as on Plio-Pleistocene rocky shores on Santiago (Cape Verde archipelago). A basalt substrate is widely penetrated by clavate-shaped borings belonging to the ichnogenus  Gastrochaenolites interpreted as dwelling structures of suspension-feeding bivalves. Some of these borings still retain evidence of the alleged trace-makers preserved as body fossils, while others are filled with their casts. The ichnofossil assemblage present on these bioeroded surfaces belongs to the Entobia ichnofacies. Recognition of Gastrochaenolites borings in volcanic rocks provides useful palaeoenvironmental information regarding an expanded strategy for hard-substrate colonization. Preliminary results from fieldwork in the Cape Verde Islands indicate that such borings are more widespread through Macaronesia than previously thought.
PB Springer
SN 1612-4820 online
SN 0172-9179
YR 2012
FD 2012-04
LK https://hdl.handle.net/10272/24838
UL https://hdl.handle.net/10272/24838
LA eng
NO Santos, A., Mayoral, E., Johnson, M.E. et al. Extreme habitat adaptation by boring bivalves on volcanically active paleoshores from North Atlantic Macaronesia. Facies 58, 325–338 (2012). https://doi.org/10.1007/s10347-011-0283-z
NO Financial support to A. Santos came from the Spanish Ministry of Science and Technology (Juan de la Cierva subprogram, Ref: JCI-2008-2431). Johnson’s participation was supported by a travel grant from the Class of 1945 Faculty World Fellowship during sabbatical leave from Williams College in 2009–2010. Participation by J. Ledesma-Vázquez was supported by travel grants from the Universidad Autonóma de Baja California under the 14th Research Program, as well as from the Cuerpo Academico de Geología Costera/Programa Integral de Fortalecimiento Institucional. Financial support also was provided in 2011 through by the Ministry of Science and Innovation of Spain Spanish by the project CGL2010-15372-BTE. Support by the Junta de Andalucía (Spanish government) to the Research Group RNM316 (Tectonics and Palaeontology) is acknowledged
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026