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85 results for “Messinian”
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.
FIG. 11. — A-C in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 11. — A-C, Bryocryptella torquata (Jullien, 1903); A, colony fragment, frontal view, POTB13: AMPG(IV) 2815a; B, colony fragment, dorsal view, POTB13: AMPG(IV) 2815b; C, detail view of zooids, FAN31: AMPG(IV) 3500a; D, Tessaradoma boreale (Busk, 1860), colony fragment, FAN28: AMPG(IV) 3613. E-F, Kionidella excelsa Koschinsky, 1885; E, colony fragment, basal view, FAN7: AMPG(IV)3570a; F, frontal view of a few zooids, FAN16: AMPG(IV) 3572. Scale bars: A, 500 µm; B, E, 200 µm; C, F, 100 µm; D, 1 mm.
FIG. 9. — A, B in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 9. — A, B, Cupuladria cf. canariensis (Busk, 1859); A, frontal view of a whole colony, KER39: AMPG(IV) 3078a; B, dorsal view of a whole colony, KER39: AMPG(IV) 3078b; C, D, Discoporella reussiana (Manzoni, 1869); C, frontal view of a whole colony, KER30: AMPG(IV) 3102; D, dorsal view of a whole colony, KER30: AMPG(IV) 3101; E, Nellia tenella (Lamarck, 1816), detail of an internode showing two zooids in frontal view, KER17: AMPG(IV) 3150a; F-H, Canda rectangulata Udin, 1964; F, dorsal view of an internode fragment, FAN35: AMPG(IV) 3506a; G, frontal view of an internode fragment, FAN35: AMPG(IV) 3506b; H, Detail of the same fragment, FAN35: AMPG(IV) 3506b. Scale bars: A-D, 1 mm; E, H, 100 µm; F-G, 200 µm.
FIG. 8. — A-C in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 8. — A-C, Crisia aculeata Hassall, 1841; A, internode, frontal view, POTB13: AMPG(IV) 2828a; B, internode, dorsal view, POTB13 2828b: AMPG(IV); C, internode with gonozooid, KAP22: AMPG(IV) 3339. D-F, Crisia denticulata (Lamarck, 1816); D, internode, frontal view, POTB13: AMPG(IV) 2829a; E, internode dorsal view, POTB13: AMPG(IV) 2829b; F, gonozooid, POTB13: AMPG(IV) 2829c. Scale bars: A, 500 µm; B-F, 200 µm.
FIG. 6 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 6. — Theoretical zonation in a transect from coastal to upper bathyal palaeoenvironments following Pérès & Picard (1964). This bionomic depth zonation illustrates the situation on flat muddy bottoms in areas with very clear waters, like in the oligotrophic (eastern) Mediterranean Sea. The distribution of bryozoan growth-form assemblages (in average number of fragments per sample) and the average number of species in each assemblage is indicated in a grey circle (partly inspired from Moissette 2000).
FIG. 1. — A in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 1. — A, Situation map of Crete within the eastern Mediterranean; B, geological sketch map of the island of Crete (after Krijgsman et al. 1994), with location of the studied sections.
FIG. 7. — A, B in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 7. — A, B, Anguisia verrucosa Jullien, 1882; A, bifurcating branch, FAN36: AMPG(IV) 3471; B, encrusting base (left) and erect peristome of the encrusting proximal zooid of a running branch (right), FAN35: AMPG(IV) 3470; C, D, Exidmonea atlantica (Forbes in Johnston, 1847); C, fragment of a branch, frontal view (with a gonozooid on the left upper part), POTB13: AMPG(IV) 2853a; D, fragment of a branch, dorsal view, POTB13: AMPG(IV) 2853b; E-G, Ybselosoecia typica (Manzoni, 1878); E, fragment of a branch (with a large gonozooid), frontal view, POTB13: AMPG(IV) 2881a; F, detail of the ooeciostome of another gonozooid, POTB13: AMPG(IV) 2881b; G, fragment of a branch, dorsal view, POTB13: AMPG(IV) 2881c. Scale bars: A, D, 200 µm; B, G, 100 µm; C-E, 500 µm.
FIG. 2 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 2. — Schematic sedimentary log of Potamida composite section with sample location and semi-quantitative abundances of bryozoan species.
FIG. 10. — A-C in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 10. — A-C, Scrupocellaria cf. elliptica (Reuss, 1847); A, view of some zooids showing opesia with 4 spine bases on the outer distal part and 3 spine bases + 1 scutal spine on the inner distal rim, FAN36: AMPG(IV) 3587; B, zooids with 7 spine bases and the scutum, FAN35: AMPG(IV) 3586a; C, dorsal surface of a colony fragment with small vibracularia and radicular pores, FAN35: AMPG(IV) 3586b; D, E, Scrupocellaria scrupea Busk, 1852; D, ovicellate colony fragment, FAN35: AMPG(IV) 3590a; E, detail frontal view showing opesia with five spine bases, FAN35: AMPG(IV) 3590b; F-H, Cellaria salicornioides Lamouroux, 1816; F, part of a slender internode, FAN18: AMPG(IV) 3513a; G, detail view showing denticles and endotoichal ovicells, POTB13: AMPG(IV) 2821a; H, avicularia in frontal and lateral view (arrow), POTB13: AMPG(IV) 2821b; I, Gemellipora eburnea Smitt, 1873, broken internode showing two zooids with two oval scars separated by a thin interzooidal groove, CAP032: AMPG(IV) 3426. Scale bars: A-E, G, I, 100 µm; F, H, 200 µm.
FIG. 12. — A-G in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 12. — A-G, Batopora rosula (Reuss, 1847); A, colony, basal-lateral view (arrow indicates the scar of an ovicellate zooid), FAN7: AMPG(IV) 3475a; B, colony, apical view, FAN7: AMPG(IV) 3475b; C, colony, lateral-apical view, FAN7: AMPG(IV) 3475c; D-G, juvenile forms (G, basal view), FAN18: AMPG(IV)a-d; H-I, Orbitulipora excentrica Seguenza, 1880; H, whole colony, FAN22: AMPG(IV) 3580a; I, detail view of the left part of the same colony (arrows indicate ovicellate zooids), FAN22: AMPG(IV) 3580a. Scale bars: H, 500 µm; A-C, I, 200 µm; D-G, 100 µm.
FIG. 5 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 5. — Schematic sedimentary log of Faneromeni section with sample location and semi-quantitative abundances of bryozoan species.
FIG. 3 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 3. — Schematic sedimentary log of Keramoutsi section with sample location and semi-quantitative abundances of bryozoan species.
Text-fig. 4. Type specimens of Magnolia allasoniae MARTINETTO sp. nov. from the Pliocene locality Ca' Viettone. a1–a4: Holotype (MGPT-PU141081) in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 5) in a black and white print (a1), in a new digital photograph in basal view (a2), ventral view (a3) and dorsal view (a4); b1–b4: Paratype MGPT-PU141082 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 4) in a black and white print (b1), in a new digital photograph in basal view (b2), ventral view (b3) and dorsal view (b4); c1–c4: Paratype MGPT-PU141083 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 6) in a black and white print (c1), in a new digital photograph in basal view (c2), ventral view (c3) and dorsal view (c4); d1–d4: Paratype MGPT-PU141084 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 7) in a black and white print (d1), in a new digital photograph in basal view (d2), ventral view (d3) and internal view (d4). Scale bars 1 mm. in Late Messinian Flora From The Post-Evaporitic Deposits Of The Piedmont Basin (Northwest Italy)
Text-fig. 4. Type specimens of Magnolia allasoniae MARTINETTO sp. nov. from the Pliocene locality Ca' Viettone. a1–a4: Holotype (MGPT-PU141081) in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 5) in a black and white print (a1), in a new digital photograph in basal view (a2), ventral view (a3) and dorsal view (a4); b1–b4: Paratype MGPT-PU141082 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 4) in a black and white print (b1), in a new digital photograph in basal view (b2), ventral view (b3) and dorsal view (b4); c1–c4: Paratype MGPT-PU141083 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 6) in a black and white print (c1), in a new digital photograph in basal view (c2), ventral view (c3) and dorsal view (c4); d1–d4: Paratype MGPT-PU141084 in different views, i.e., as originally figured in Martinetto (1995: pl. 1, fig. 7) in a black and white print (d1), in a new digital photograph in basal view (d2), ventral view (d3) and internal view (d4). Scale bars 1 mm.
Text-fig. 3. Examples of plant macrofossil assemblages from post-evaporitic sections. a: bedding plane from Ciabòt Cagna covered by impressions of plant parts, with dominance of leaves of cf. Oleinites liguricus M.SACHSE, MCEA-P05038. b: waterloggedcompressed seeds of Toddalia latisiliquata (R.LUDW.) H.-J.GREGOR sieved out of a bulk sediment sample from Pollenzo, MGPTPU141033. c: millimeter-sized, waterlogged-compressed seeds of Sambucus pulchella C.REID et E.REID with abundant cracks, probably formed during both diagenesis and extraction of the fossils (bulk sediment sample from Ciabòt Cagna), MGPT- in Late Messinian Flora From The Post-Evaporitic Deposits Of The Piedmont Basin (Northwest Italy)
Text-fig. 3. Examples of plant macrofossil assemblages from post-evaporitic sections. a: bedding plane from Ciabòt Cagna covered by impressions of plant parts, with dominance of leaves of cf. Oleinites liguricus M.SACHSE, MCEA-P05038. b: waterloggedcompressed seeds of Toddalia latisiliquata (R.LUDW.) H.-J.GREGOR sieved out of a bulk sediment sample from Pollenzo, MGPTPU141033. c: millimeter-sized, waterlogged-compressed seeds of Sambucus pulchella C.REID et E.REID with abundant cracks, probably formed during both diagenesis and extraction of the fossils (bulk sediment sample from Ciabòt Cagna), MGPT-
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