Foraminifera eco-biostratigraphy of the southern Evoikos outer shelf, central Aegean Sea, during MIS 5 to present

Suborbital Hydrological Variability Inferred From Coupled Benthic and Planktic Foraminiferal‐Based Proxies in the Southeastern Mediterranean During the Last 19 ka

“…The major changes in the benthic foraminiferal community mainly occur during three contrasting time periods: the glacial-deglaciation, Holocene-sapropel, and post-sapropel/Holocene intervals. This is in line with earlier studies from the EM for this time period (Abu-Zied et al, 2008;Drinia et al, 2016;Kuhnt et al, 2007;Louvari et al, 2019;Schmiedl et al, 2010). In our study, this subdivision is clearly expressed in the community changes (Figure 3), in the BFAR and diversity index ( Figure 2), and in the stable carbon and oxygen isotopes ( Figure 5).…”

Eco-biostratigraphic advances in late Quaternary geochronology and palaeoclimate: the marginal Gulf of Mexico analogue

“…The quan ti ta tive dis tri bu tion of plank tonic foraminifera from the LGM to the pres ent dis plays a suc ces sion of microfaunal as sem blages (biozones) char ac ter iz ing the pro gres sively chang ing sur face wa ter en vi ron ment. In such mar ginal bas ins, the suc ces sive fau nal zones can be in di cated as ecozones, because the ma jor ity of the spe cies are sen si tive in di ca tors of past en vi ron men tal changes with am pli fied sig nals (Drinia and Antonarakou, 2003;Antonarakou et al, 2007Antonarakou et al, , 2018Antonarakou et al, , 2019Drinia et al, 2007Drinia et al, , 2008Drinia et al, , 2016Kontakiotis, 2012Kontakiotis, , 2016Kontakiotis et al, 2013Kontakiotis et al, , 2016aKontakiotis et al, , b, 2017Fenton et al, 2016;Karakitsios et al, 2017a, b). The eco log i cal di ver gence between the spe cies (Hemleben et al, 1989;Rohling et al, 1993), even be tween dif fer ent morphotypes of the same spe cies (Antonarakou et al, 2015;Kontakiotis et al, 2017), de ter mined by dif fer ent con trol ling fac tors (e.g., depth hab i tats, growth op timum/stressed con di tions, pro duc tiv ity, strat i fi ca tion, near-/offshore-con di tions), in com bi na tion with their dif fer ent test morpho logies (e.g., re lated to shell shape and size, thick ness, in ner po ros ity and pore sur face dis tri bu tion; Morard et al, 2009;Kontakiotis et al, 2017), con trol di rectly their dis tri bu tion pat tern and re flect the re gional cli mate vari abil ity (Marcott et al, 2013).…”

“…Af ter wash ing and dry ing at 50°C, the sam ples were sieved and the >125 µm size frac tion was split with an Otto mi cro-split ter into aliquots, from which at least 300 spec i mens The top-right in set shows the names of the main cur rents, as de scribed in the text of plank tonic foraminifera were picked, iden ti fied and counted us ing morphospecies-spe cific and/or spe cial ized tax o nomic ref er ences (Ken nett and Srinivasan, 1983;Hemleben et al, 1989;Kontakiotis et al, 2017). The num ber of plank tonic foraminifera counted is sta tis ti cally re li able for both ecobiostratigraphic and palaeoclimatic re con struc tions (Pat ter son and Fishbein, 1989;Capotondi et al, 1999;Drinia and Antonarakou, 2003;Sprovieri et al, 2003;Sbaffi et al, 2004;Budillon et al, 2009;Triantaphyllou et al, 2009;Siani et al, 2010;Drinia et al, 2016;Bonfardeci et al, 2018). All the spec imens iden ti fied showed very good lev els of pres er va tion, with no traces of dis so lu tion or dam age found in the tests.…”

“…To better un der stand the im pact of these pa ram e ters on the re gional cli mate, a num ber of stud ies based on var i ous ma rine prox ies has fo cused on the hydrologic evo lu tion of the ba sin dur ing the late Qua ter nary (Metcalfe et al, 2000;Aharon, 2003Aharon, , 2006Poore et al, 2003;Flower et al, 2004;LoDico et al, 2006;Nürnberg et al, 2008;Ziegler et al, 2008;Richey et al, 2011Richey et al, , 2012Spear et al, 2011a; Ras mus sen and Thom sen, 2012; Limoges et al, 2014;del Monte-Luna et al, 2015;Antonarakou et al, 2015;Shakun et al, 2016;Reynolds et al, 2018). How ever, the re con struc tion of the vari abil ity of late Qua ter nary cli mate needs de tailed eco-litho-chronostratigraphic con trol (Triantaphyllou et al, 2009;Siani et al, 2010;Drinia et al, 2016;Koutrouli et al, 2018). In this re spect, no ta ble con tri bu tions are re quired from micropaleontological, biogeochemical, and sedimentological stud ies.…”

The evolution of the Carpathian Foredeep Basin during the latest Badenian and Sarmatian (Middle Miocene): inferences from micropalaeontological data

“…As sem blage IX (Figs. 2 and 3) of the Up per Sarmatian, com posed of high abundant infaunal spe cies be long ing to Bulimina and Bolivina, in dicates deeper sea depths (mid dle neritic) with gen er ally normal-sa lin ity and low ox y gen-con tent at the sea-floor (Murray, 1991;Sen Gupta and Machain-Castillo, 1993;Jorissen et al, 1995;Dubicka et al, 2014;Drinia et al, 2016;Pezelj et al, 2016). Sim i lar con di tions can be pos tu lated for the de pos its of the up per most part of the Costeºti sec tion, rep re sented by As sem blage XI, which is en tirely com posed of rep re sen ta tives of Fissurina (Silye, 2015).…”