000161723 001__ 161723 000161723 005__ 20251017144651.0 000161723 0247_ $$2doi$$a10.1007/s41513-025-00299-5 000161723 0248_ $$2sideral$$a144367 000161723 037__ $$aART-2025-144367 000161723 041__ $$aeng 000161723 100__ $$aBarrón, Eduardo 000161723 245__ $$aPalynological trends and sedimentological framework of a Barremian estuarine and barrier-island system in the western Tethys (Camarillas Formation, eastern Spain) 000161723 260__ $$c2025 000161723 5060_ $$aAccess copy available to the general public$$fUnrestricted 000161723 5203_ $$aThe Early Cretaceous Camarillas Formation represents a thick and extensive estuarine and barrier island-lagoonal depositional system that developed in the Western Tethys (Iberian Basin, eastern Spain). Thirty-seven percent (7 out of 19) of the palynological samples collected from three stratigraphic sections of this formation (six from the sedimentary stage 2 and one from the stage 3) were productive, containing well-preserved palynological assemblages, including 105 taxa. Despite having similar facies to the productive ones, the remaining 63% of the samples were barren of palynomorphs, suggesting that environmental conditions, rather than taphonomical bias, played a key role in preservation. In general, gymnosperm pollen grains and fern spores dominate the palynoflora. Scarce angiosperm pollen grains and aquatic palynomorphs also occur. The most representative taxon in the studied levels is Classopollis obidosensis. Angiosperm pollen predominates in the uppermost productive level, whereas the Cyathidites/Deltoidospora spore-type abounds in a basal one. The palynological study confirms a Barremian age for the Camarillas Formation and provides insights into vegetation mosaics that included conifer-forests along the western Tethyan coasts. However, the data suggest a palaeofloristic change throughout the succession. Firstly (Stage 2), it is characterized by the alternation between xerophytic conifer-woodlands that developed in arid and/or coastal areas and freshwater swamps containing taxodioids and ferns. Then (Stage 3), gymnosperm-producers of the pollen type Cycadopites/Monosulcites and pioneer angiosperms inhabited brackish swamps. 000161723 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2019-108705GB-I00$$9info:eu-repo/grantAgreement/ES/AEI/PID2022-137316NB-C22$$9info:eu-repo/grantAgreement/ES/DGA/E32-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2023-148949NB-I00 000161723 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es 000161723 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000161723 700__ $$0(orcid)0000-0002-7739-6096$$aNavarrete, Rocío 000161723 700__ $$aRodríguez-López, Juan Pedro 000161723 700__ $$0(orcid)0000-0003-2963-8422$$aSoria, Ana R.$$uUniversidad de Zaragoza 000161723 700__ $$aLassaletta, Luis 000161723 700__ $$0(orcid)0000-0002-9130-117X$$aLiesa, Carlos L.$$uUniversidad de Zaragoza 000161723 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía 000161723 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna 000161723 773__ $$g(2025), [25 pp.]$$pJ. iber. geol.$$tJOURNAL OF IBERIAN GEOLOGY$$x1698-6180 000161723 8564_ $$s14785196$$uhttps://zaguan.unizar.es/record/161723/files/texto_completo.pdf$$yVersión publicada 000161723 8564_ $$s2253299$$uhttps://zaguan.unizar.es/record/161723/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000161723 909CO $$ooai:zaguan.unizar.es:161723$$particulos$$pdriver 000161723 951__ $$a2025-10-17-14:36:30 000161723 980__ $$aARTICLE