. Ordovician fossils of north China. Paleontology; Paleontology. Fig. 7 Fig. 4 Fig. 5 Fig. 4. Protocycloceras deprati. Front view of an internal mould, showing the anniialations. Natural size. Fig. 5. Protocvcloceras deprati. Side view of the same. Natural size. Fig. (>. Protocycloceras deprati. End view of the same, showing the eccentric siphuncle. Natural size. Fig. 7. Protocycloceras deprati. Portion of the test of another smaller individual. Fnlamed five times. This species is represented by numerous specimens, which are all internal moulds but belong to the same species. In taking the
. Ordovician fossils of north China. Paleontology; Paleontology. Fig. 7 Fig. 4 Fig. 5 Fig. 4. Protocycloceras deprati. Front view of an internal mould, showing the anniialations. Natural size. Fig. 5. Protocvcloceras deprati. Side view of the same. Natural size. Fig. (>. Protocycloceras deprati. End view of the same, showing the eccentric siphuncle. Natural size. Fig. 7. Protocycloceras deprati. Portion of the test of another smaller individual. Fnlamed five times. This species is represented by numerous specimens, which are all internal moulds but belong to the same species. In taking the longitudinal section the interior of the specimen is wholly empty without any trace of the internal structures. Nevertheless, the characteristic surface annulations and the position of the siphuncle are cleary shown on the exterior of the 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 Grabau, Amadeus W. (Amadeus William), 1870-1946. Peking, Published by the Geological Survey of China
Size: 1530px × 1632px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaleont, bookyear1922
