地质通报
地質通報
지질통보
GEOLOGICAL BULLETIN OF CHINA
2009年
10期
1382-1389
,共8页
副蝎蛉科(P)%华夏三叠副蝎蛉(T2t)%吐孜沟准噶尔蝎蛉(J1b)%冀北直脉蝎蛉属(J2j)%燕辽昆虫群%燕辽生物群
副蝎蛉科(P)%華夏三疊副蝎蛉(T2t)%吐孜溝準噶爾蝎蛉(J1b)%冀北直脈蝎蛉屬(J2j)%燕遼昆蟲群%燕遼生物群
부갈령과(P)%화하삼첩부갈령(T2t)%토자구준갈이갈령(J1b)%기북직맥갈령속(J2j)%연료곤충군%연료생물군
Parachoristidae(P)%Triasoparachorist(T2t)%Junggarochorista(J1b)%Jibeiorthophlebia(J2j)%Yanliao Entomofauna%Yanliao Biota
报道了华夏三叠副蝎蛉Triasoparachorista huaxiaensis gen.et sp nov.(T_2t)、吐孜沟准噶尔蝎蛉Junggarochorista tuzigouensis Hong.nom.nov.(J_1b)和1个新转移属--冀北直脉蝎蛉属Jibeiorthophlebia Hoing,1983(transl.nov.)(J_2)及其2个种J.xiaofangzhangziensis Hong,1983(transl.nov.)、J.internata Hong,1983(transl.nov.)在中国首次发现.根据它们的脉序特征,在分类上应当归于Parachoristidae Tillyard,1937.这个科既具有二叠蝎蛉科(Permochoristidae)MP带6支脉的特征,又有直脉蝎蛉科(Orthophlebüdae)Rs_1至少带3支脉呈扇形排列的特征,形成二叠蝎蛉科和直脉蝎蛉科之间的一种独特的过渡特征的中间类群,这个类群对它们之间的演变关系的研究有重要意义.副蝎蛉科化石在中国的发现很有意义:①填补了中国中三叠世、早侏罗世、中侏罗世副蝎蛉科的空白;②可以帮助我们追溯副蝎蛉科、直脉蝎蛉科和二叠蝎蛉科之间在不同地质背景中的演变关系:③关于中侏罗世燕辽生物群及其有关问题,笔者曾先后指出,燕辽生物群(Yanliao Biota)(J_2)和热河生物群(K_1)均起源于华北古陆(North China Paleocontinent),燕辽地区(覆盖了新增加的内蒙古宁城地区)是它们的起源中心,尔后向外扩散与迁移,并向北覆盖到蒙古东部、俄罗斯外贝加尔等地区,形成东亚古陆(Eastern Asian Paleocontinent)中一个广阔的燕辽生物群和热河生物群的区系:④讨论了宁城地区地层层位的归属问题.
報道瞭華夏三疊副蝎蛉Triasoparachorista huaxiaensis gen.et sp nov.(T_2t)、吐孜溝準噶爾蝎蛉Junggarochorista tuzigouensis Hong.nom.nov.(J_1b)和1箇新轉移屬--冀北直脈蝎蛉屬Jibeiorthophlebia Hoing,1983(transl.nov.)(J_2)及其2箇種J.xiaofangzhangziensis Hong,1983(transl.nov.)、J.internata Hong,1983(transl.nov.)在中國首次髮現.根據它們的脈序特徵,在分類上應噹歸于Parachoristidae Tillyard,1937.這箇科既具有二疊蝎蛉科(Permochoristidae)MP帶6支脈的特徵,又有直脈蝎蛉科(Orthophlebüdae)Rs_1至少帶3支脈呈扇形排列的特徵,形成二疊蝎蛉科和直脈蝎蛉科之間的一種獨特的過渡特徵的中間類群,這箇類群對它們之間的縯變關繫的研究有重要意義.副蝎蛉科化石在中國的髮現很有意義:①填補瞭中國中三疊世、早侏囉世、中侏囉世副蝎蛉科的空白;②可以幫助我們追溯副蝎蛉科、直脈蝎蛉科和二疊蝎蛉科之間在不同地質揹景中的縯變關繫:③關于中侏囉世燕遼生物群及其有關問題,筆者曾先後指齣,燕遼生物群(Yanliao Biota)(J_2)和熱河生物群(K_1)均起源于華北古陸(North China Paleocontinent),燕遼地區(覆蓋瞭新增加的內矇古寧城地區)是它們的起源中心,爾後嚮外擴散與遷移,併嚮北覆蓋到矇古東部、俄囉斯外貝加爾等地區,形成東亞古陸(Eastern Asian Paleocontinent)中一箇廣闊的燕遼生物群和熱河生物群的區繫:④討論瞭寧城地區地層層位的歸屬問題.
보도료화하삼첩부갈령Triasoparachorista huaxiaensis gen.et sp nov.(T_2t)、토자구준갈이갈령Junggarochorista tuzigouensis Hong.nom.nov.(J_1b)화1개신전이속--기북직맥갈령속Jibeiorthophlebia Hoing,1983(transl.nov.)(J_2)급기2개충J.xiaofangzhangziensis Hong,1983(transl.nov.)、J.internata Hong,1983(transl.nov.)재중국수차발현.근거타문적맥서특정,재분류상응당귀우Parachoristidae Tillyard,1937.저개과기구유이첩갈령과(Permochoristidae)MP대6지맥적특정,우유직맥갈령과(Orthophlebüdae)Rs_1지소대3지맥정선형배렬적특정,형성이첩갈령과화직맥갈령과지간적일충독특적과도특정적중간류군,저개류군대타문지간적연변관계적연구유중요의의.부갈령과화석재중국적발현흔유의의:①전보료중국중삼첩세、조주라세、중주라세부갈령과적공백;②가이방조아문추소부갈령과、직맥갈령과화이첩갈령과지간재불동지질배경중적연변관계:③관우중주라세연료생물군급기유관문제,필자증선후지출,연료생물군(Yanliao Biota)(J_2)화열하생물군(K_1)균기원우화북고륙(North China Paleocontinent),연료지구(복개료신증가적내몽고저성지구)시타문적기원중심,이후향외확산여천이,병향북복개도몽고동부、아라사외패가이등지구,형성동아고륙(Eastern Asian Paleocontinent)중일개엄활적연료생물군화열하생물군적구계:④토론료저성지구지층층위적귀속문제.
Triasoparachorista huaxiaensis gen.et sp.nov.(T_2), Junggaarochorista tuzigouensis Hong nom nov.(J_1) and a transfered old genus with two species,Jibeiorthophlebia xiaofanzhangziensis Hong,1983 and J.internata Hong,1983 (J_2) are firsdy discovered in China.According to wing venational features,these genera and species should be referred to family Parachoristidae Tillyard,1937.The main features of Parachoristidae mixed both features of the Orthophlebiidae in the Ks_1 with at least 2 (Protorthophlebia)-3 (Orthophlebia) or more pectinate branches,and of the Permochoristidae in the MP with 6 branches.It formed a unique intermediate group between Orthopblebiidae and Permochoristidae,and it is different from them,meanwhile its venational features can be distinguished in "Dinopanorpidae" Carpenter,1972.The discovery of fossil Parachoristidae in China has certain significances,firstly it fills the gap of the field of Parachoristidae in the Midtriassic,Early Jurassic and Midjurassic of China.Secondly,In the meantime it can be used to trace the evolutionary relationship of this family in various geological age,especially to the study on the evolutionary relationship between Permochoristidae and Orthophlebiidae from the Late Paleozoic to Early Mesozoic.Thirdly,the author reported that the Yanliao Biota (J_2) and Jehol Biota (K_1) dervided from North China Palaeocontinent.Yanliao region is the origin center of Yaoliao Biota and Jehol Biota,and then they migrated outwards to eastern Mongolia and arrived Zabaikalia of Russia,and formed widely a faunal province of Yanliao Biota and Jehol Biota in the Eastoasian Paleocontinent.Fourthly,the problem on the exact horizon of Ningcheng strata is discussed in this paper.
