Polymerid Trilobites from the Cambrian of Northwestern Hunan, China

China is richly endowed with Cambrian strata yielding some of the best-preserved fossils known anywhere in the world. The trilobites are most important element in the fauna, and of scientific relevance for several reasons. First, they are of regional importance in the precise correlation of strata, and are of primary use in characterising mappable formations. Second, some of the species are widespread internationally, and these permit the placing of Chinese stratigraphical schemes within the global chronostratigraphy. Thirdly, the variety, relationships and endemicity of the faunas contributes to the broad questions of how evolution proceeded in the Cambrian, and is relevant to debates about whether special conditions applied at the early stage of the Phanerozoic radiation. Volume 1 of this set contains general geologic information concerning the Huaqiao Formation of the northwestern Hunan, lithostratigraphic data, biostratigraphic zonation, detailed description of three stratigraphic sections, and the systematic of corynexochid, lichid, and as aphid trilobites. Volume 2 contains systematic treatments of ptychopariids, eodiscids, trilobites of uncertain affinity, and some undertermined sclerites. In both volumes, considerable effort was made to reillustrate type material of many previously described taxa. In some older literature, illustrations were not always reproduced well, so the new illustrations should help to clarify taxonomic concepts. * Provides a detailed documentation of 196 polymerid triobites from Huaqiao Formation of northwestern Hunan, including a large number of new genera and species * Includes high-quality photographs and illustrations throughout. Read more... Content: Foreword , Page i - Volume 1 - List of Text-Figures , Pages vii-viii Volume 2 - List of Text-Figures , Page vii 1 - Introduction , Pages 1-2 - Previous Work , Page 3 - Geologic Setting , Pages 4-39 - Correlation , Pages 40-43 - Systematic Paleontology , Pages 44-185 References , Pages 186-200 - Introduction , Pages 1-6 - Systematic Paleontology , Pages 7-176 References , Pages 177-190 Volume 1 - Plates , Page 207 Volume 1: Plate 1 , Pages 208-209 Volume 1: Plate 2 , Pages 210-211 Volume 1: Plate 3 , Pages 212-213 Volume 1: Plate 4 , Pages 214-215 Volume 1: Plate 5 , Pages 216-217 Volume 1: Plate 6 , Pages 218-219 Volume 1: Plate 7 , Pages 220-221 Volume 1: Plate 8 , Pages 222-223 Volume 1: Plate 9 , Pages 224-225 Volume 1: Plate 10 , Pages 226-227 Volume 1: Plate 11 , Pages 228-229 Volume 1: Plate 12 , Pages 230-231 Volume 1: Plate 13 , Pages 232-233 Volume 1: Plate 14 , Pages 234-235 Volume 1: Plate 15 , Pages 236-237 Volume 1: Plate 16 , Pages 238-239 Volume 1: Plate 17 , Pages 240-241 Volume 1: Plate 18 , Pages 242-243 Volume 1: Plate 19 , Pages 244-245 Volume 1: Plate 20 , Pages 246-247 Volume 1: Plate 21 , Pages 248-249 Volume 1: Plate 22 , Pages 250-251 Volume 1: Plate 23 , Pages 252-253 Volume 1: Plate 24 , Pages 254-255 Volume 1: Plate 25 , Pages 256-257 Volume 1: Plate 26 , Pages 258-259 Volume 1: Plate 27 , Pages 260-261 Volume 1: Plate 28 , Pages 262-263 Volume 1: Plate 29 , Pages 264-265 Volume 1: Plate 30 , Pages 266-267 Volume 1: Plate 31 , Pages 268-269 Volume 1: Plate 32 , Pages 270-271 Volume 1: Plate 33 , Pages 272-273 Volume 1: Plate 34 , Pages 274-275 Volume 1: Plate 35 , Pages 276-277 Volume 1: Plate 36 , Pages 278-279 Volume 1: Plate 37 , Pages 280-281 Volume 1: Plate 38 , Pages 282-283 Volume 1: Plate 39 , Pages 284-285 Volume 1: Plate 40 , Pages 286-287 Volume 1: Plate 41 , Pages 288-289 Volume 1: Plate 42 , Pages 290-291 Volume 1: Plate 43 , Pages 292-293 Volume 1: Plate 44 , Pages 294-295 Volume 1: Plate 45 , Pages 296-297 Volume 1: Plate 46 , Pages 298-299 Volume 1: Plate 47 , Pages 300-301 Volume 1: Plate 48 , Pages 302-303 Volume 1: Plate 49 , Pages 304-305 Volume 1: Plate 50 , Pages 306-307 Volume 1: Plate 51 , Pages 308-309 Volume 1: Plate 52 , Pages 310-311 Volume 1: Plate 53 , Pages 312-313 Volume 1: Plate 54 , Pages 314-315 Volume 1: Plate 55 , Pages 316-317 Volume 1: Plate 56 , Pages 318-319 Volume 1: Plate 57 , Pages 320-321 Volume 1: Plate 58 , Pages 322-323 Volume 1: Plate 59 , Pages 324-325 Volume 1: Plate 60 , Pages 326-327 Volume 1: Plate 61 , Pages 328-329 Volume 1: Plate 62 , Pages 330-331 Volume 1: Plate 63 , Pages 332-333 Volume 2 - Plates , Page 199 Volume 2: Plate 1 , Pages 200-201 Volume 2: Plate 2 , Pages 202-203 Volume 2: Plate 3 , Pages 204-205 Volume 2: Plate 4 , Pages 206-207 Volume 2: Plate 5 , Pages 208-209 Volume 2: Plate 6 , Pages 210-211 Volume 2: Plate 7 , Pages 212-213 Volume 2: Plate 8 , Pages 214-215 Volume 2: Plate 9 , Pages 216-217 Volume 2: Plate 10 , Pages 218-219 Volume 2: Plate 11 , Pages 220-221 Volume 2: Plate 12 , Pages 222-223 Volume 2: Plate 13 , Pages 224-225 Volume 2: Plate 14 , Pages 226-227 Volume 2: Plate 15 , Pages 228-229 Volume 2: Plate 16 , Pages 230-231 Volume 2: Plate 17 , Pages 232-233 Volume 2: Plate 18 , Pages 234-235 Volume 2: Plate 19 , Pages 236-237 Volume 2: Plate 20 , Pages 238-239 Volume 2: Plate 21 , Pages 240-241 Volume 2: Plate 22 , Pages 242-243 Volume 2: Plate 23 , Pages 244-245 Volume 2: Plate 24 , Pages 246-247 Volume 2: Plate 25 , Pages 248-249 Volume 2: Plate 26 , Pages 250-251 Volume 2: Plate 27 , Pages 252-253 Volume 2: Plate 28 , Pages 254-255 Volume 2: Plate 29 , Pages 256-257 Volume 2: Plate 30 , Pages 258-259 Volume 2: Plate 31 , Pages 260-261 Volume 2: Plate 32 , Pages 262-263 Volume 2: Plate 33 , Pages 264-265 Volume 2: Plate 34 , Pages 266-267 Volume 2: Plate 35 , Pages 268-269 Volume 2: Plate 36 , Pages 270-271 Volume 2: Plate 37 , Pages 272-273 Volume 2: Plate 38 , Pages 274-275 Volume 2: Plate 39 , Pages 276-277 Volume 2: Plate 40 , Pages 278-279 Volume 2: Plate 41 , Pages 280-281 Volume 2: Plate 42 , Pages 282-283 Volume 2: Plate 43 , Pages 284-285 Volume 2: Plate 44 , Pages 286-287 Volume 2: Plate 45 , Pages 288-289 Volume 2: Plate 46 , Pages 290-291 Volume 2: Plate 47 , Pages 292-293 Volume 2: Plate 48 , Pages 294-295 Volume 2: Plate 49 , Pages 296-297 Volume 2: Plate 50 , Pages 298-299 Volume 2: Plate 51 , Pages 300-301 Volume 2: Plate 52 , Pages 302-303 Volume 2: Plate 53 , Pages 304-305 Volume 2: Plate 54 , Pages 306-307 Volume 2: Plate 55 , Pages 308-309 Volume 2: Plate 56 , Pages 310-311 Volume 2: Plate 57 , Pages 312-313 Volume 2: Plate 58 , Pages 314-315 Volume 2: Plate 59 , Pages 316-317 Volume 2: Plate 60 , Pages 318-319 Volume 2: Plate 61 , Pages 320-321 Volume 2: Plate 62 , Pages 322-323 Volume 2: Plate 63 , Pages 324-325 Volume 2: Plate 64 , Pages 326-327 Volume 2: Plate 65 , Pages 328-329 Volume 2: Plate 66 , Pages 330-331 Volume 2: Plate 67 , Pages 332-333 Volume 2: Plate 68 , Pages 334-335 Volume 2: Plate 69 , Pages 336-337 Volume 2: Plate 70 , Pages 338-339 Volume 2: Plate 71 , Pages 340-341 Volume 2: Plate 72 , Pages 342-343 Volume 2: Plate 73 , Pages 344-345 Volume 2: Plate 74 , Pages 346-347 Volume 2: Plate 75 , Pages 348-349 Volume 2: Plate 76 , Pages 350-351 Volume 2: Plate 77 , Pages 352-353 Volume 2: Plate 78 , Pages 354-355 Volume 1 - Index of Species and Genera , Pages 201-205 Volume 2 - Index of Species and Genera , Pages 191-198 China is richly endowed with Cambrian strata yielding some of the best-preserved fossils known anywhere in the world. The trilobites are most important element in the fauna, and of scientific relevance for several reasons. First, they are of regional importance in the precise correlation of strata, and are of primary use in characterising mappable formations. Second, some of the species are widespread internationally, and these permit the placing of Chinese stratigraphical schemes within the global chronostratigraphy. Thirdly, the variety, relationships and endemicity of the faunas contributes to the broad questions of how evolution proceeded in the Cambrian, and is relevant to debates about whether special conditions applied at the early stage of the Phanerozoic radiation. Volume 1 of this set contains general geologic information concerning the Huaqiao Formation of the northwestern Hunan, lithostratigraphic data, biostratigraphic zonation, detailed description of three stratigraphic sections, and the systematic of corynexochid, lichid, and as aphid trilobites. Volume 2 contains systematic treatments of ptychopariids, eodiscids, trilobites of uncertain affinity, and some undertermined sclerites. In both volumes, considerable effort was made to reillustrate type material of many previously described taxa. In some older literature, illustrations were not always reproduced well, so the new illustrations should help to clarify taxonomic concepts. * Provides a detailed documentation of 196 polymerid triobites from Huaqiao Formation of northwestern Hunan, including a large number of new genera and species * Includes high-quality photographs and illustrations throughout; From 500 to 570 million years ago Provides general geologic information concerning the Huaqiao Formation of the northwestern Hunan, lithostratigraphic data, and biostratigraphic zonation. This two-volume set also contains systematic treatments of ptychopariids, eodiscids, and trilobites of uncertain affinity.