A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . f?;;.^:,0</ ^/eA//::/^ FOSSIL IXORA. 63 PLATE XXIII. Great Stigmaria. {Stigmaria ficoides, of major, of Artis.) Thk fossil here represented Is a fragment of a Stigmaria having larger tubercles than thespecies previously described. The tubercles are oval at the base, somewhat compressed, longi-tudinally farrowed at the top, with a pit in the furrow. This root is from five to six inches in diamete
A pictorial atlas of fossil remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology." . f?;;.^:,0</ ^/eA//::/^ FOSSIL IXORA. 63 PLATE XXIII. Great Stigmaria. {Stigmaria ficoides, of major, of Artis.) Thk fossil here represented Is a fragment of a Stigmaria having larger tubercles than thespecies previously described. The tubercles are oval at the base, somewhat compressed, longi-tudinally farrowed at the top, with a pit in the furrow. This root is from five to six inches in diameter; the axis is seen near the compressed side,in the transverse section at the bottom of the figure. From a sandstone quarry, near Rotherham, Yorkshire. The specimen figured by Mr. Parkinson, ante, Plate III. fig. 1, appears to be the fragmentof a Stigmaria of this kind in ironstone: the internal axis is seen in the transverse sectionpressed from its natural position to near the outer ,XD ,-7-^ , cilOjj/ ^ FOSSIL FLORA. 65 PLATE XXIV. Crested Aspidiaeia. {Aspidiaria cristata, of appendiculata, cristatum, Artis.) The fossil here represented is part of the stem of a tree nearly forty feet long, and two feetin diameter, found imbedded in sandstone at Banktop, Yorkshire. The cicatrices of the petioles are obovate, and have a central oblong crest or ridge; theinterstices form deep angular furrows. The stems with this type of sculj^turing, are supposed to belong to a group of extinctvegetables, which held an intermediate place between the Sigillaria, previously described, andthe Lepidodendra; together with the latter, and certain true Coniferas and arborescent ferns,these trees appear to have constituted the principal forests of the Carboniferous epoch.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectpaleontology, bookyea
