Evolution and Geological Significance of Larger Benthic Foraminifera

Abstract

on his work in my discussions of the biology of the larger foraminifera as presented in Chapter 1.I would like to refer readers to Prof Lukas Hottinger's outstanding web pages "Illustrated glossary of terms used in foraminiferal research" which can be found at http://paleopolis.rediris.es/cg/CG2006_M02/4_droite.htm. Some of these illustrations are reproduced in this book, courtesy of Prof Hottinger.I would like to thank Prof McMillan for access to his South African collection of larger foraminifera, Dr Michelle Ferrandini, Université de Corse, for access to her Corsican collections and Prof K. Matsumaru for access to some of his original material.I would also like to thank the Natural History Museum, London for giving me access to their excellent collection, which includes type species of many early workers. I would like to thank all scientists who contributed to this collection and thus to my book. My gratitude is also expressed to the Senckenberg-Forschungsinstitut und Naturmuseum, Germany for their Permian collection and UCL Geological Sciences, Micropalaeontology unit collections. I am particularly grateful for the assistance of Mr Jim Davy, UCL, and in Mr Clive Jones, NHM. Mr Jones was very helpful in locating specimens and his methods of filing and storing the NHM collection were so very useful.Finally, I am especially grateful for the careful editing and reviewing carried out by Prof Alan Lord (of the Senckenberg-Forschungsinstitut und Naturmuseum, Germany) and Prof David Price (UCL). Prof Price' s advice throughout the book, and our useful discussions on the causes of extinctions gave me many ideas on the relationship between sensitive, small, living organisms, such as the larger foraminifera, and large scale geological processes. I also thank him for helping me to look into the wider processes involved in evolution and for his encouragement.

Numerical analyses of selected microencrusters from the Cipit boulders of the St Cassian Formation (Dolomites, NE Italy): palaeoecological implications

“…A notable feature of Cipit boulders, according to Fürsich & Wendt (1977) and to Biddle (1984), is the significant absence of dolomitization and diagenesis in most of them, which allows the identification of the biota and the microfacies. This feature was also recognized by Reitner (1987), Russo et al (1991), Neuweiler & Reitner (1995), Russo (2005) and Sánchez-Beristain & Reitner (2012, 2018. In turn, the microfacies and biotic heterogeneity at the Cipit boulders from the St Cassian Formation have since long been defined (e.g.…”

“…For instance, Popa et al (2014) reported Tubiphytes and cement crusts as the main reef builders from the Anisian of North Dobrogea, Romania. The role of microencrusters during the Triassic continued to take more relevance in the Ladinian-Carnian [Flügel et al 2002 (and references therein); Flügel 2010;Sánchez-Beristain & Reitner 2012, 2018Sanchez-Beristain et al 2013;Gale et al 2016Gale et al , 2018], until the Carnian extinction event (Benton et al 2018) and up to the Norian-Rhaetian in the Tehyan realm [e.g. Schäfer 1979;Senowbari-Daryan 1980;Bernecker et al 1999;Flügel et al 2002 (and references therein); Cherchi & Schroeder 2010;Senowbari-Daryan et al 2011;Uţa 2012;Senowbari-Daryan & Link 2018].…”

“…In turn, the microfacies and biotic heterogeneity at the Cipit boulders from the St Cassian Formation have since long been defined (e.g. Wendt & Fürsich 1980;Wendt 1982;Reitner 1987;Keupp et al 1989;Sánchez-Beristain & Reitner 2012, 2018.…”

“…Nevertheless, this does not represent a problem, since the overall total of microencrusters in this Fossillagerstätte is high. For an overview of this diversity, the works of Sánchez-Beristain & Reitner (2012, 2018 and references therein can be consulted.…”

“…Dendronella-Hexactinellida association; CT, Ceratoporella-Tubiphytes association; CM, Cryptocoelia-Mesophyllum; CS, Cladogirvanella-Stromatolite association; Tm, thrombolite-microencruster association; CGII, Cassianothalamia association II; PRI, patch-reef association I; MMI, mud-mound association I; PRII, patch-reef association II; PRIII, patch-reef association III; Cm, Chaetetid-microencruster association; AM, Amblysiphonella-Megalodon association; CGI, Cassianothalamia association I; MMII, mud-mound association II. See text and the works bySánchez-Beristain & Reitner (2016, 2018 for further information.…”