Taenidium barretti ichnofabric and rainfall seasonality:Insights into dryland suites of Scoyenia ichnofacies

作     者：Diego Luciano Nascimento Renata Guimaraes Netto Alessandro Batezelli Francisco Sergio Bernardes Ladeira Daniel Sedorko Diego Luciano Nascimento;Renata Guimar?es Netto;Alessandro Batezelli;Francisco Sérgio Bernardes Ladeira;Daniel Sedorko

作者机构：ICHNOS Research GroupGeology Graduate ProgramUnisinos UniversityAv.Unisinos95010 Sao LeopoldoRS93022-750Brazil Campinas State UniversityGeology and Natural Resources DepartmentZeferino Vaz University CityBarao GeraldoCampinasSP13083-970Brazil Laboratory of Pedology(LABPED)Department of GeographyGeosciences InstituteGeosciencesState University of CampinasCampinasSP13083-855Brazil Museu NacionalDepartamento de Geologia e PaleontologiaUniversidade Federal do Rio de Janeiro.Horto BotanicoParque Quinta da Boa VistaR.Gen.Herculano Gomes1340Sao CristovaoRio de JaneiroRJ20940-040Brazil 

出 版 物：《Journal of Palaeogeography》 (古地理学报（英文版）)

年 卷 期：2023年第12卷第1期

页      面：28-49页

核心收录：

学科分类：0303[法学-社会学] 0710[理学-生物学] 070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0705[理学-地理学] 0815[工学-水利工程] 0813[工学-建筑学] 0833[工学-城乡规划学] 

基　　金：the Sao Paulo Research Foundation(FAPESP)for supporting and funding this work(grant 2015/17632-5) The Brazilian National Council for Scientific and Technological Development(CNPq)is also thanked for the Ph.D.grant provided to DLN(140807/2017-9) the post-doctoral fellowship grant to DS(159548/2018-7) the research grants to AB(310734/2020-7) RGN(310377/2019-6) FSBL(307951/2018-9,303977/2021-3) 

主　　题：Ichnology Paleopedology Continental ichnofacies Meniscate burrows Ichnofabric 

摘      要：The present work analyzes the monotypic Taenidium barretti ichnofabric developed in abandoned channels and floodplains to understand its paleoecological significance in highly seasonal fluvial *** data come from the Cretaceous paleosols of the Marília Formation(Bauru Basin,SE Brazil),in which the *** ichnofabric and rhizoliths represent the biotic *** larvae are considered to be the most likely *** tracemakers in these *** intensity and recurrence of bioturbation suggest that the windows of opportunity for beetle population growth were very short and controlled by the progressive substrate desiccation after flood *** characteristics of the trace fossil assemblage suggest soil colonization by r-strategic organisms triggered by flooding events that provided the resource inputs necessary for their living during rainy *** results also show that in fluvial systems with high discharge variations,the boundaries between a“pre-desiccation suiteand a“desiccation suitein the Scoyenia ichnofacies can be diffuse due to the short duration of colonization windows and progressive terrestrialization of floodplains and ***,the frequency of flooding events,the lowered water table,and the rapidity of substrate desiccation constrained colonization by other burrowers and may be considered as firstorder factors controlling the generation of a monotypic *** ***,the monotypic Taenidium ichnofabric in the Scoyenia ichnofacies context is an ichnomarker of brief windows for colonization in highly seasonal environments.