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17 results for “Messinian salinity Crisis”
Revised marine fossil record of the Mediterranean before and after the Messinian Salinity Crisis
<p>This is a unified and revised marine fossil record of the Mediterranean covering the Tortonian stage, the pre-evaporitic Messinian and the Zanclean stage and encompassing 23032 occurrences of calcareous nannoplankton, dinoflagellates, foraminifera, corals, ostracods, bryozoans, echinoids, mollusks, fishes, and marine mammals. It consists of four files in .csv format: 1) 'MessinianDB' contains the fossil occurrences; 2) 'coord' has the list of fossiliferous localities with their coordinates and the groups of organisms reported from each one; 3) 'DBrefs' contains the full citations of the references in the database; 4) 'corals' contains the list of coral genera in the database, indicating whether or not they include zooxanthellate (z-corals) or azooxanthellate (az-corals) species, or both. In the latter case, we further indicate if the species found in the database should be considered z- or az-corals, based on the accompanying fauna. </p>
Figure 5 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 5. Unrooted COI ML trees for populations of taxon A (three populations, 15 specimens), Adriohydrobia gagatinella (four populations, 40 specimens; adapted from Wilke & Falniowski, 2001), and Peringia ulvae (three populations, 14 specimens; modified from Wilke & Davis, 2000; see text for details). Circle sizes are proportional to the observed number of individuals with each haplotype. Missing haplotypes are indicated by small black circles. All individuals of taxon A are areacoded (Ba = Bambinello Spring, Id = Idume Creek, TC = Torre Castiglione).
Figure 6 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 6. Salenthydrobia ferrerii sp. nov., individuals preserved in ethanol. A, holotype (ANSP, A19754). B-D, paratypes (ANSP, A19755). E, F, paratypes (SMF 323031/2).
Figure 3 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 3. Maximum likelihood tree for hydrobiine taxa based on 1127 bp of the combined COI and 16S genes. Mercuria similis and Pseudamnicola lucensis were used as outgroups. The scale bar indicates the expected number of substitutions according to the model of sequence evolution applied. For taxon A, individual DNA isolation numbers are given. Bootstrap values (in percentage) are provided (for details see text).
Figure 1 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 1. Southern Italy with sampling localities on the Salentina Peninsula. The shaded areas show the land mass after the Pliocene flooding (about 4.5 Mya).
Figure 2 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 2. Head-penis complex in the four known genera of the Hydrobiinae (sensu Radoman, 1977): Hydrobia (A), Peringia (B), Ventrosia (C), Adriohydrobia (D), as well as in taxon A (E). Note that the general penis morphology is constant within the putative genera of the Hydrobiinae. All drawings are to scale.
Figure 4 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 4. Time scale for cladogenic events in hydrobiine taxa based on a ML analysis of the COI gene under the constraint of the molecular clock hypothesis. The outgroup taxa were removed a postori. The thick bars represent population divergence (±SE) for the two nodes involving the splits of taxon A as well as Adriohydrobia. Rates of evolution (1–3% population divergence per Myr) are shown above the time scale.
Text-fig. 2. Stratigraphic column of the Govone section with a detail of the sampled intervals on the right. CCS – Cassano Spinola Conglomerates; Gm and Gg – sedimentary cycles, respectively marl-dominated or gypsum-dominated; MES – Messinian Erosional Surface; MSC – Messinian Salinity Crisis; PLG – Primary Lower Gypsum; RLG – Resedimented Lower Gypsum. in Remains Of A Subtropical Humid Forest In A Messinian Evaporitebearing Succession At Govone, Northwestern Italy - Preliminary Results
Text-fig. 2. Stratigraphic column of the Govone section with a detail of the sampled intervals on the right. CCS – Cassano Spinola Conglomerates; Gm and Gg – sedimentary cycles, respectively marl-dominated or gypsum-dominated; MES – Messinian Erosional Surface; MSC – Messinian Salinity Crisis; PLG – Primary Lower Gypsum; RLG – Resedimented Lower Gypsum.
Calcareous nannofossil size and abundance response to the Messinian Salinity Crisis onset and paleoenvironmental dynamics
<p>The file contains calcareous nannofossils (<em>Helicosphaera carteri, Sphenolithus abies, Umbilicosphaera rotula, Coccolithus pelagicus, Reticulofenestra minuta</em>) biometry data collected in the Messinian Perales section (Sorbas Basin, Spain) and in the Banengo and Pollenzo sections (Piedmont Basin, Italy)</p>
Figure 8 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 8. Salenthydrobia ferrerii sp. nov., bursa copulatrix complex.
Figure 7 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 7. Salenthydrobia ferrerii sp. nov., penis morphology.
FIGURE 3 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 3 Bayesian phylogenetic trees for the concatenated mitochondrial loci (a) and nuclear EF-1α (b). Posterior probabilities>0.90 are shown next to branch nodes. Scale bar represents the number of estimated changes per branch length. Hilaphura varipes (Hva608), Cicada barbara (Cba203), and Cicada orni (Cor298) were set as outgroup. Root length was truncated for imaging purposes.
FIGURE 6 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 6 DensiTree output of the Bayesian inference species tree of Tettigettalna with the partitioned unlinked mtCOI and nuEF-1α dataset. The consensus trees are shown by the bold blue line. Uncertainty of node heights and topology is shown by the transparent green, purple and red lines. Core Tettigettalna refers to the clade composed of the remainder of the Tettigettalna (see methods for explanation). Scale bar indicates ma. The broken lines (A-C) refer to key moments in time illustrated in the left panes. (A) Mid-Tortonian (~10–8 ma) when the ancestral population of the Tettigettalna occurred in the southern Iberian Peninsula; the broken line marks the separation of the T. josei lineage from the main ancestral population. (B) Late Messinian, during the salinity crisis, when the main population disperses to North Africa, via the formed land bridge; the broken line indicates the rupture caused by the opening of the Gibraltar Strait by end of the Messinian (5.33 ma). (C) Early Pliocene (~4 ma), showing the three lineages: T. josei in southwestern Iberia; T. afroamissa in Morocco and the remainder of the European Tettigettalna lineage, which would later diverge into all other species. In the lower left corner, a female of the Moroccan species T. afroamissa is shown
FIGURE 2 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 2 Sampling of Tettigettalna spp. circles indicate same-species collection points. Due to the volume of sampling from the southern Iberian Peninsula, the smaller box below shows additional sampling points for other species annotated for that area. Legend: 1—T. estrellae; 2—T. josei; 3—T. mariae; 4—T. armandi; 5—T. aneabi; 6— T. defauti; 7—T. helianthemi helianthemi; 8—T. h. Galantei; 9—T. boulardi; 10— T. afroamissa; 11A—T. argentata south clade; 11B—T. argentata north clade; 11C—T. argentata central clade; 11D— T. argentata Catalonia clade
FIGURE 5 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 5 Age estimate boxplots of the possible nodes by the multispecies coalescent species-tree with *BEAST. The first boxplot plots the age estimates of the basal node of Tettigettalna, with the remainder plotting a different topology (TAF, T. afroamissa, TJO, T. josei, TCO, "core" Tettigettalna).
FIGURE 1 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 1 Major geological events of the Western Mediterranean, Pleistocenic glacial refugia, and Tettigettalna spp. distributions. Panels (a–d) show a schematic of the evolution of the West Mediterranean region from the Tortonian to the late Pleistocene. (a) Mid Tortonian, depicting the three Eurafrican corridors that later closed, between 7.8 and 6.0 ma. (b) Late Messinian, during the salinity crisis an extensive land bridge formed between Iberia and North Africa. Arrow points to the Guadalquivir basin, a large saltwater basin. (c) Early Pliocene, land bridge is now disrupted, and the Guadalquivir basin has almost retreated. (d) Late Pleistocene, during the period when sea level was the lowest, according to Rohling et al. (2014), approx. 150 m lower. No land bridges are present during this period. Putative Pleistocenic glacial refugia of the Western Mediterranean inferred for flora (Médail & Diadema, 2009) are represented in green, and terrestrial fauna and flora (Gómez & Lunt, 2007) shown with broken lines. (e) Present day Tettigettalna spp. distributions are shown in orange, according to Puissant and Sueur (2010), Simões et al. (2014), Nunes, Mendes, Quartau, et al. (2014) and Costa et al. (2017). Legend: 1—T. estrellae; 2—T. josei; 3—T. mariae; 4—T. armandi; 5—T. aneabi; 6—T. defauti; 7—T. helianthemi helianthemi; 8—T. h. Galantei; 9— T. boulardi; 10—T. afroamissa. Species' distributions shown in brown overlap with those of other species. The distribution of T. argentata is not shown as it is widespread across several European countries and the Iberian Peninsula with exception of the Baetic ranges in southeastern Iberia. Scale bar = 100 km
FIGURE 4 in The effect of the Messinian salinity crisis on the early diversification of the Tettigettalna cicadas
FIGURE 4 Tettigettalna species tree with concatenation model as output of BEAST. Posterior probabilities>0.9 are shown next to each node. Node bars (A-J) illustrate the 95% HPD interval (age estimates for each node are listed in Table 2). Vertical grey shading under the timescale bar refers to two past geological events: The Messinian salinity crisis and the Pleistocene ice ages. To illustrate song diversity within the target genus, oscillograms are shown next to each taxon.
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