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215 results for “Mississippian”
Nutrition360: Moving to Integrated and Holistic Disease Prevention Among Underserved Mississippians
ClinicalTrials.gov study NCT06286618. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: Crinoid assemblages from the Fort Payne Formation (late Osagean, early Viséan, Mississippian) from Kentucky, Tennessee, and Alabama
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Data from: Testing for escalation in Lower Mississippian camerate crinoids
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Data from: Camerate crinoids from the Nunn Member (Osagean) of the Lower Mississippian Lake Valley Formation, New Mexico
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Data from: Population structure of lake whitefish (Coregonus clupeaformis) from the Mississippian lineage in North America
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Data from: A new Mississippian tetrapod from Fife, Scotland, and its environmental context
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Species diagnosis tables for: Crinoids from the Wooster Shale Member of the Cuyahoga Formation, Carboniferous (Mississippian, Tournaisian) of Northeastern Ohio
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FIG. 3 in Anatomy, affinities, and evolutionary implications of new silicified stems of Sphenophyllum Brongniart, 1828 from the early Carboniferous (Mississippian) of France and Germany
FIG. 3. — Specimen from Puech de la Suque, Montagne Noire, France (MN201): A, MN201-E2, general view showing several fragments of plants inside a partly decayed Clepsydropsis leclercqii Galtier, 1966 (Cl). A young Sphenophyllum stem (S) in transverse view is present at the bottom right; B, MN201-E2, general view of the Sphenophyllum stem on A showing the ribbed cortex (C) and the triangular stele with three protoxylem strands (arrows); C, MN201-E2, detail of the triangular stele; note the small lacunae in the best preserved protoxylem strand (arrow); D, MN201-E2, detail of the cortex; E, same specimen as A-D (MN201-F1) at another level, less well preserved but showing branching; F, same photo than E with the outline indicated in yellow, as well as the location of the primary xylem of the main axis (a) and of a lateral axis (b) also viewed in transverse section; the general outline of the cortex and oblique orientation of the tissue suggest the existence of another lateral organ towards the top of the photo (c); the tissues in the upper right corner correspond to part of the xylem of a Clepsydropsis Unger, 1856 rachis. Scale bars: A, 2 mm; B, E, 500 µm; C, D, 100 µm.
FIG. 4 in Anatomy, affinities, and evolutionary implications of new silicified stems of Sphenophyllum Brongniart, 1828 from the early Carboniferous (Mississippian) of France and Germany
FIG. 4. — Specimen from Coumiac,Montagne Noire, France (MN911):A, slide MN911-A1,general view of the specimen above the level of branching,showing a main axis (a) on the left with a trace to a leaf (l) and a smaller axis (b) on the right;this section corresponds to the level 7 on Figure 7; B, slide MN911-A1,general view of the main axis in transverse section showing the cortex with six lobes and triangular primary xylem (arrows); C, slide MN911-A1,detail of the stele on A; note the presence of lacunae (arrow) at the extremity of each arm of the stele and the lack of secondary vascular tissues;D, slide MN911-A2,pitting on the primary xylem of an outgoing branch trace;E, slide MN911-A2, general view of the smaller axis shown on A; note smaller size of the primary xylem compared to B; F, slide MN911-A2,detail of the largest axis showing outgoing paired vascular traces at the extremity of the arm; G, slide MN911-A2, detail of F showing the protoxylem strand (arrow) and two outgoing traces (lt); H-K, successive sections showing the branching of the axis; H, below the division; I, node with leaves; J, branching; K, branching complete. These photos correspond to the levels 1, 2, 4, and 5 on Figure 7 and to polished surfaces MN911-B1i, MN911-B1s, MN911-B2s, and MN911-B3i. Scale bars: A, H-K, 1 mm; B, E, F, 200 µm; C, 80 µm; D, 50 µm.
FIG. 6 in Anatomy, affinities, and evolutionary implications of new silicified stems of Sphenophyllum Brongniart, 1828 from the early Carboniferous (Mississippian) of France and Germany
FIG. 6. — Specimens with secondary growth from Kahlleite, Germany (KLC4 & KLC3): A, B, slides KLC4-A1 and KLC4-B1, general view of KLC4 in transverse sections at two different levels showing the triangular stele with three strands of protoxylem (arrows) and the outer cortex with 7 (A) or 6 (B) ridges; C, slide KLC4-B1, detail of the protostele in KLC 4 in transverse section showing a lacuna in at least one of the protoxylem locations; D, slide KLC4-B1, detail of the primary (X1) and secondary (X2) xylem in KLC4; note the files of secondary xylem tracheids separated by rays (arrows); E, slide KLC4-B1, detail of the outer cortex showing a decrease in cell diameter towards the outside of the stem (top of the image); F, slide KLC3-C, centre of KLC3 in a region where the center is preserved; arrows indicate the tip of the three arms of the actinostele; G, slide KLC3-C, detail of the protostele of KLC3 showing a primary xylem pole (arrow) and the development of secondary xylem (X2) around the primary xylem (X1); H, slide KLC3-C, detail of the secondary xylem in KLC 3 showing tracheids and rays (arrows) in transverse section. Scale bars: A, B, 500 µm; C, 200 µm; D, H, 50 µm; E, 20 µm; F, 250 µm; G, 100 µm.
FIG. 5 in Anatomy, affinities, and evolutionary implications of new silicified stems of Sphenophyllum Brongniart, 1828 from the early Carboniferous (Mississippian) of France and Germany
FIG. 5. — Specimen with secondary growth from Puech de la Suque, Montagne Noire, France (MN864): A, slide MN864-C1, general view of the specimen in transverse section; the cortex is flattened but the central vascular tissues are not distorted; B, slide MN864-C1, central part of the axis in transverse section showing the cortex (C), the triangular shape of the primary xylem (X1), the position of the protoxylem (arrows), and a little development of secondary xylem (X2); a lacuna is present at the location of the protoxylem in the top right arm of the stele; C, slide MN864-C1, detail of secondary xylem (X2) in transverse section, with row of tracheids and possible ray cells (arrows); D, slide MN864-C1, more or less radial section through the stem showing the central part composed of primary and secondary xylem (X) and cortex (C); E, slide MN864-A5, detail of the box on element D showing possible tangentially elongated pits on the radial wall of secondary xylem tracheids; F, slide MN864-C1, detail of the cortex in transverse section showing a decrease in cell size and increase in wall thickness towards the periphery of the axis; G, slide MN864-A5, longitudinal section showing elongated cells of the cortex; H, slide MN864-A5, longitudinal section at a node showing the cortex (C) and a leaf base (l) cut obliquely; I, slide MN864-A5, detail of the leaf base on H; J, slide MN864-A6, longitudinal section at a node showing the cortex (C) and a leaf (l) showing its length and thickness. Scale bars: A, H, J, 500 µm; B, I, 200 µm; C, E-G, 50 µm; D, 250 µm.
FIG. 4. — Cosmoselachus mehlingi n. gen., n in A new operculate symmoriiform chondrichthyan from the Late Mississippian Fayetteville Shale (Arkansas, United States)
FIG. 4. — Cosmoselachus mehlingi n. gen., n. sp., specimen AMNH FF 20509, pharyngeal denticles (arrowhead) revealed by CT scanning. Anterior to top, ventral view in frontal section. Scale bar: 2 cm.
Fig. 3 in Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK
Fig. 3. Facies architecture of the Brigantian (uppermost Visean) mud mound complex of Ricklow Quarry. A. Facies association map (outcrops only) of the study area of Ricklow Quarry, with position of the collected fossil brachiopod assemblages and samples for thin sections. Map drawn from a geodatabase built with ESRI ArcGIS® software. Basemap by Ordnance Survey, OS MasterMap Topography Layer, 1:1250 series. Kilometric coordinate system: British National Grid (projection: Transverse Mercator; datum: OSGB 1936; units: metres). B. Interpretative stratigraphic scheme of the studied mud mound complex with spatial distribution of the distinguished facies associations. Scales are approximate with 2× vertical exaggeration. Flank beds are inclined with an angle of 20–44°. Abbreviations: Fm., Formation; Lm., Limestone;
Fig. 11 in Mississippian colonial tabulate and rugose corals from the Flett Formation, Liard Basin, northwest Canada
Fig. 11. Rugose corals Cordilleria aff. mutabile (Kelly, 1942), from Rundle Group undivided, east-central British Columbia, Canada (A) and Meilleur Member, Flett Formation (Mississipian), Rundle Group, Liard Basin, Northwest Territories, Canada (B–D). A. C-07349 = GSC 142468, 8.05 km NW of Bone Mountain, east-central British Columbia; transverse thin section (A1), longitudinal thin sections (A2, A3), pseudocolumella (A4, black arrows) created on tabula surface (white arrow) and tabulae/pseudocolumella relationships in lower part of picture. B. C-52546 = GSC 142470, locality 3 (Fig. 2); longitudinal thin section (B1), transverse thin section (B2). C. C-47930 = GSC 142469, locality 2 (Fig. 2); transverse thin section; very early growth stage of offset. D. C-52124 = GSC 142471, locality 3 (Fig. 2); thin section of three offsets in different growth stage; one cut longitudinally, two transversally.
Spiro Mississippian Sun Gorget, c. 1200-1350 CE
Spiro Mississippian Sun Gorget, c. 1200-1350 CE, now in the collection of the Minneapolis Institute of Art. From [artsmia.org](www.artsmia.org) (the description refers to two gorgets in Mia's collection): "…The sun is the chief divinity, represented in this realm by fire... Each (gorget) has significant supernatural power, power that was extended to the individual wearing their symbol. Whether they indicated rank, membership in a special society, warrior status or something else is unknown, but the context in which they have been found, the expensive material and the high quality of the carvings confirm their role as prestige objects." [More info here](https://collections.artsmia.org/art/4242/gorget-spiro-mississippian) Source: Objaverse 1.0 / Sketchfab
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