in Jurassic and Cretaceous Stratigraphy

More documents

Recommendations

Info

Earth Science Frontiers, Vol. 17, Special Issue, Aug. 2010 ISSN 1005-2321 from the Shar-Teg locality in Mongolia. Paleon- tological Journal, 2000, 34 (Suppl. 3): S347-S351. Vyalov O.S., Sukatsheva I.D. Fossil caddisfly larval cases (Insecta, Trichiptera) and their significance for stratigraphy. In: Paleontology and Biostrati- graphy of Mongolia. Moscow: Nauka, 1976: 169- 231 (in Russia). Wang M.X., Zhao Y.Y., Ren D. New fossil caddisfly 158 from Middle Jurassic of Daohugou, Inner Mongo- lia, China (Trichoptera: Philopotamidae). Progress in Natural Science, 2009, 19: 1427-1431. Wu H., Huang D.Y. A new species of Liadotaulius (Insecta: Trichoptera) from Middle Jurassic of Daohugou. Acta Geologica Sinica: English Edi- tion, 2010, in press.
Earth Science Frontiers, Vol. 17, Special Issue, Aug. 2010 ISSN 1005-2321 Taxonomy of Fossil Palaeontinidae from the Late Mesozoic in Northeast China (Insecta: Heimptera: Cicadomorpha) Ying Wang 1 , Dong Ren 2* 1. Beijing Museum of Natural History, Beijing 100050, China (E-mail: wangying_527@126.com) 2. College of Life Sciences, Capital Normal University, Beijing 100048, China (E-mail: rendong@mail.cnu.edu.cn) Palaeontinidae is an extinct family of Hemiptera existed from the Triassic to the Mid Creatceous. Until now, it includes 44 genera and 110 species, and have a distribution in Kyrgyzstan (Triassic of Issyk-kue and Sulucta, Jurassic of Sai-Sagul), Turkmenistan (Jurassic of Karabas-Tau), China (Jurassic of Xinjiang, Hebei, Gansu and Inner Mongolia; Late Jurassic to Early Cretaceous of Liaoning), Russia (Jurassic of Iya, Ust- Baley and Irkutsk, Early Cretaceous of Transbaikalia), Tadzhikistan (Jurassic of Shurab), Kazakhstan (Jurassic of Turgay), Australian (Triassic of Ipswich), South Africa (Triassic of Bird’s River), Brazil (Cretaceous) and Spain (Late Jurassic to Early Cretaceous) (Wang Y. et al., 2007a). The extinct family Palaeontinidae had the first appearance in the Middle Triassic of Australian (Evans, 1956). It was abundant in the Jurassic and became extinct by the Mid-Cretaceous (Menon et al., 2005). The distribution of Palaeontinidae is correlated with the abundance of Ginkgoales (Zherikhin and Kalugina, 1985). It is highly improbable that they may feed on phloem of rather thick stems of Ginkgoales. Mesozoic volcanic activity in eastern China com- menced in the Late Triassic, gradually increased in intensity during the Early and Middle Jurassic. During the Late Jurassic the volcanism was very strong, while in the Early Cretaceous it was weaker and nearly terminated in the Late Cretaceous (Xu, 1990). The Northeast China, especially Jiulongshan Formation of Middle Jurassic and Yixian Formation of Late Jurassic to Early Cretaceous, yields a mass of notable fossils including aboundan tinsects which provide important evidence for study of the origin and early evolution of insects. Among these abundant insect fossils, the records of fossil Palaeontinidae are quite common in the insectiferous deposits from the Northeastern China, and often very well preserved and presenting distinct morphological disparity. These valuable materials are important supplements to the record of world fossil palaeontinid and may aid study of their origin as well as their interactions between insects and plants. Representatives of extinct Palaeontinidae were huge, moth-like insects, resembling a little, but not related to singing cicadas, which witnessed the rise and fall of dinosaurs. Head with small postclypeus and long rostrum. Compound eyes and ocelli present. Their wing span ranges 10-36 mm; wings are very often disruptive patterned, and body is often covered with scales or dense hairs (Wang et al., 2007a; Wang and Ren, 2009). A combination of cryptic coloration and disruptive marking enhanced their camouflage. They constitute 15.5% of specimens in the fossil record of Northeastern China. The known taxonomic diversity of these fossils is relatively high, with 42 species within 17 genera reported from the Daohugou (the Middle Jurassic) and Beipiao (the Upper Jurassic to Lower Cretaceous) strata. Another 14 species within 6 genera reported from Xinjiang, Hebei and Gansu Province. It is not very common to find fossil specimens with well-preserved and complete body, forewings and hind wings. Among erected genera of Palaeontinidae, most genera were described and illustrated based on a single forewing or hind wing. Up to now, 15 genera worldwide were established based on complete forewings and hind wings. Different venation pattern of forewings and hind wings is important for generic classification in palaeontinids. Well preserved specimens from Daohugou and Beipiao strata enabled us to accurately fix the characters of the wing and head. The section at Daohugou Village is composed of grey tuffaceous sandstone and sandy mudstone. Up to now, in comprises rich animal and plant fossils, at least 130 species of insects have been collected from Daohugou Village (Wang et al., 2007b). The paleo- environment reconstructed for this locality is a volcanic region with mountain streams and lakes. The age of Daohugou fossil-bearing beds is Middle Jurassic. With recent discoveries of the fossil genera Daohugoucossus (Wang et al., 2006a), Eoiocossus (Wang et al., 2006b), Quadraticossus (Wang and Ren, 2007), Hami- cossus (Wang and Ren, 2007), Abrocossus Wang B. et al., 2007, Neimenggucossus (Wang et al., 2007), Cladocossus (Wang and Ren, 2009) and Cricocossus (Wang and Ren, 2009), Daohugou area has proven to be one of the most important site for studying past diversity of the Palaeontinidae. By comparison, the Middle Jurassic palaeontinids diversity is greater than those in any other epoch, suggesting that the family probably went into its most prosperous stage in the Middle Jurassic. Their high taxonomic and morphological diversity suggests a high complexity of niche structure and a high level of specialization within the guild. Key words: Palaeontinidae; Taxonomy; Meso- zoic; China References: Evans J.W. Palaeozoic and Mesozoic Hemiptera (In- 159
Page 4 and 5:
THE 8 TH INTERNATIONAL CONGRESS ON
Page 6 and 7:
EARTH SCIENCE FRONTIERS Short paper
Page 8 and 9:
Earth Science Frontiers, Vol. 17, S
Page 10 and 11:
Page 12 and 13:
Page 14 and 15:
Page 16 and 17:
Page 18 and 19:
Page 20 and 21:
Page 22 and 23:
Page 24 and 25:
Page 26 and 27:
Page 28 and 29:
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
Page 54 and 55:
Page 56 and 57:
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115: Earth Science Frontiers, Vol. 17, S
Page 214 and 215:
Page 216 and 217:
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Page 268 and 269:
Page 270 and 271:
Page 272 and 273:
Page 274 and 275:
Page 276 and 277:
Page 278 and 279:
Page 280 and 281:
Page 282 and 283:
Page 284 and 285:
Page 286 and 287:
Page 288 and 289:
Page 290 and 291:
Page 292 and 293:
Page 294 and 295:
Page 296 and 297:
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
Page 318 and 319:
Page 320 and 321:
Page 322 and 323:
Page 324 and 325:
Page 326 and 327:
Page 328 and 329:
Page 330 and 331:
Page 332 and 333:
Page 334 and 335:
Page 336 and 337:
Page 338 and 339:
Page 340 and 341:
Page 342 and 343:
Page 344 and 345:
Page 346 and 347:
Page 348 and 349:
Page 350 and 351:
Page 352 and 353:
Page 354 and 355:
Page 356 and 357:
Page 358 and 359:
Page 360 and 361:
Page 362 and 363:
Page 364 and 365:
Page 366 and 367:
Page 368 and 369:
Page 370 and 371:
Page 372 and 373:
Page 374 and 375:
Page 376 and 377:
Page 378 and 379:
Page 380 and 381:
Page 382 and 383:
Page 384 and 385:
Page 386 and 387:
Page 388 and 389:
Page 390 and 391:
Page 392 and 393:
Page 394 and 395:
Page 396 and 397:
Page 398 and 399:
Page 400 and 401:
Page 402 and 403:
Page 404 and 405:
Page 406 and 407:
Page 408 and 409:
Page 410 and 411:
Page 412 and 413:
Page 414 and 415:
Page 416 and 417:
410 EARTH SCIENCE FRONTIERS Short P
Page 418 and 419:
P.A. Selden 191 V.I. Katkova 309 P.
show all

in Jurassic and Cretaceous Stratigraphy

Create successful ePaper yourself

Delete template?

Save as template?