. Australasian fossils, a students' manual of palaeontology. Paleontology. 108 AUSTRALASIAN FOSSILS. fig. SPONGES, & A—Protospongia reticulata, T. S. Hall. IyOw. Ordovician. Bendigo. B—Receptaculites fergusoni, Chapm. Silurian. Wombat Creek, Vict. C—R. australis, Salter. (Section of wall, etched, after Eth. & Dun) Mid. Devonian. Co. Murray, D—Protopharetra scoulari, B)th. fil. Cambrian. the Protospongia has a cup- or funnel-shaped body, composed of large and small modified spicules, which form quadrate areas, often seen in isolated or aggre- gated patches
. Australasian fossils, a students' manual of palaeontology. Paleontology. 108 AUSTRALASIAN FOSSILS. fig. SPONGES, & A—Protospongia reticulata, T. S. Hall. IyOw. Ordovician. Bendigo. B—Receptaculites fergusoni, Chapm. Silurian. Wombat Creek, Vict. C—R. australis, Salter. (Section of wall, etched, after Eth. & Dun) Mid. Devonian. Co. Murray, D—Protopharetra scoulari, B)th. fil. Cambrian. the Protospongia has a cup- or funnel-shaped body, composed of large and small modified spicules, which form quadrate areas, often seen in isolated or aggre- gated patches on the weathered surface of the rock. Protospongia also occurs in the Lower Ordovician slates and shales of Lancefield (P. oilonga), and Bendigo (P. reticulata and P. cruciformis), in Vic- toria (Fig. 67 A). At St. David's, in South Wales, the genus is found in rocks of Middle Cambrian age. The South Australian limestones in which Proto- spongia occurs are usually placed in the Lower Cam- brian. Another genus of Sponges, Hyalostelia, whose affinities are not very clear, occurs in the South Aus- tralian Cambrian at Curramulka. This type is represented by the long, slightly bent, rod-like. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chapman, Frank M. (Frank Michler), 1864-1945. Melbourne, London [etc. ] G. Robertson & Company Propy. ltd.
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Keywords: ., bookaut, bookcentury1900, bookdecade1910, booksubjectpaleontology
