昆明附近早寒武世遗迹化石

报道了昆明地区下寒武统筇竹寺组玉案山段和沧浪铺组乌龙箐段所发现的遗迹化石共１３属１５种，其中１新属６新种为：ＱｉｐａｎｓｈａｎｉｃｈｎｕｓｇｙｒｕｓＬｕｏｅｔＴａｏｉｃｈｎｏｇｅｎ．ｅｔｉｃｈｎｏｓｐ．ｎｏｖ．，ＡｒｔｈｒｏｐｈｙｃｕｓｑｉｏｎｇｚｈｕｓｉｅｎｓｉｓＬｕｏｉｃｈｎｏｓｐ．ｎｏｖ．，ＢｉｆｕｎｇｉｔｅｓｋｕｎｙａｎｇｅｎｓｉｓＬｕｏｉｃｈｎｏｓｐ．ｎｏｖ．，ＣｒｕｚｉａｎａｂｅｉｆｅｎｇｗａｎｅｎｓｉｓＬｕｏｅｔＧａｏｉｃｈｎｏｓｐ．ｎｏｖ．，ＰａｌａｅｏｐｈｙｃｕｓｂｅｉｆｅｎｇｗａｎｅｎｓｉｓＬｕｏｉｃｈｎｏｓｐ．ｎｏｖ．，ＡｒｃｈａｅｉｃｈｎｉｕｍｋｕｎｍｉｎｇｅｎｓｉｓＬｕｏｉｃｈｎｏｓｐ．ｎｏｖ．。这些遗迹化石均产于开阔台地相潮下带的低能环境，为浅海相的Ｇｒｕｚｉａｎａ遗迹相。     

辽西义县组长节锯蜂科(昆虫纲,膜翅目)昆虫化石

描述产自辽宁西部北票上园地区和凌源大王杖子义县组长节锯蜂科（Ｘｙｅｌｉｄａｅ）巨长节锯蜂亚科（Ｍａｃｒｏｘｙｅｌｉｎａｅ）昆虫化石１２种,归于４族８属,其中６新属１２新种,包括Ａｎｇａｒｉｄｙｅｌａ ｒｏｂｕｓｔａ ｓｐ．ｎｏｖ．,Ａｎｇａｒｉｄｙｅｌａ ｅｘｃｕｌｐｔａ ｓｐ．ｎｏｖ．,Ａｎｇａｒｉｄｙｅｌａ ｓｕｓｐｅｃｔａ ｓｐ．ｎｏｖ．,Ａｎｇａｒｉｄｙｅｌａ ｅｎｄｅｍｉｃａ ｓｐ．ｎｏ     

浙江凤仙花属新分类群

１九龙山凤仙花新种图１ＩｍｐａｔｉｅｎｓｊｉｕｌｏｎｇｓｈａｎｉｃａＹ．Ｌ．ＸｕｅｔＹ．Ｌ．Ｃｈｅｎ,ｓｐ．ｎｏｖ．Ｆｉｇ．１ＳｐｅｃｉｅｓｈａｂｉｔｕｅｔｆｏｒｍａｆｏｌｉｏｒｕｍＩ．ｃｈｅｋｉａｎｇｅｎｓｉＹ．Ｌ．Ｃｈｅｎｖａｌｄｅｓｉｍｉｌｉｓ...     

云南早寒武世澄江动物群的稀有节肢动物

记述澄江动物群的３个新的节肢动物：Ｄｏｎｇｓｈａｎｉａ ｆｏｌｉｉｆｏｒｍｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．,Ｐｉｓｉｎｎｏｃａｒｉｓ ｓｕｂｃｏｎｉｇｅｒａ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．和Ｐｓｅｕｄｏｉｕｌｉａ ｃａｍｂｒｉｅｎｓｉｓ ｇｅｎ．ｅｔ ｓｐ．ｎｏｖ．。标本采自云南澄江帽天山和小滥田剖面下寒武统筇竹寺组Ｅｏｒｅｄｌｉｃｈｉａ带下部,３个新属种分别有１枚或２枚标本为代表。新属种拓宽了我们     

中国西南地区叶蜂新属种(膜翅目: 叶蜂科)(英文)

本文记述中国西南地区叶蜂２新属１０新种：短跗富槛叶蜂Ｔｏｇａｓｈｉａｂｒｅｖｉｔａｒｓｕｓｇｅｎ．ｅｔｓｐ．ｎｏｖ．，新属新种，模类秋叶蜂Ａｐｅｔｈｙｍｏｒｐｈａｔｙｐｉｃａｇｅｎ．ｅｔｓｐ．ｎｏｖ．，新属新种，西藏弓脉叶蜂Ｈｅｍａｔｈｌｏｐｈｏｒｕｓｔｉｂｅｔａｎｕｓｓｐ．ｎｏｖ．，红跗长距叶蜂Ｍｉｍａｔｈｌｏｐｈｏｒｕｓｆｕｌｖｉｔａｒｓｕｓｓｐ．ｎｏｖ．，平盾长距叶蜂Ｍｉｍａｔｈｌｏｐｈｏｒｕｓｐｌａｎｏｓｃｕｔｅｌｉｓｓｐ．ｎｏｖ．，邻脉尖唇叶蜂Ｍａｌａｃｈｉｅｌａｉｎｔｅｒｓｔｉｔｉａｌｉｓｓｐ．ｎｏｖ．，缢腹平背叶蜂Ａｌａｎｔｕｓａｔｈｌｏｐｈｏｒｏｉｄｅｓｓｐ．ｎｏｖ．，中华歧爪叶蜂Ｎａｇａｍａｓａｉａｓｉｎｉｃａｓｐ．ｎｏｖ．，中华宽颊叶蜂Ａｄｕｎｇｉａｓｉｎｉｃａｓｐ．ｎｏｖ．，短角宽颊叶蜂Ａｄｕｎｇｉａｂｒｅｖｉｃｏｒｎｉｓｓｐ．ｎｏｖ．，模式标本除注明外均保存于中南林学院环境与资源系昆虫标本室。此外长距叶蜂属ＭｉｍａｔｈｌｏｐｈｏｒｕｓＭａｌａｉｓｅ，歧爪叶蜂属ＮａｇａｍａｓａｉａＴｏｇａｓｈｉ和宽颊叶蜂属ＡｄｕｎｇｉａＭａｌａｉｓｅ为中国新记录属。还建立一新组合：Ｔｏｇａｓｈｉａ     

朝鲜潮虫属一新种(甲壳纲:等足目)

记述采自江苏省连云港市花果山的等足目气肢虫科朝鲜潮虫属一新种,即花果山朝鲜潮虫Ｋｏｒｅｏｎｉｓｃｕｓ ｈｕａｇｕｏｓｈａｎｅｎｓｉｓ Ｔａｎｇ ｅｔ Ｇｕｉ,ｓｐ．ｎｏｖ．,并讨论其与相似种莱氏朝鲜潮虫Ｋｏｒｅｏｎｉｓｃｕｓ ｒａｃｏｖｉｔｚａｉ（Ａｒｃａｎｇｅｌｉ,１９２７）的区别。     

桐柏——大别造山带苏家河群早奥陶世微体化石及其意义

根据发现的几丁虫Ｃｏｎｏｃｈｉｔｉｎａｓｐ．,Ｃ．？ｓｐ．,Ｄｅｓｍｏｃｈｉｔｉｎａｓｐ．,Ｄ．ｂｒｅｃｈｙｔａ,Ｌａｇｅｎｏｃｈｉｔｉ－ｎａｃｆ．ｏｂｅｌｉｇｉｓ,Ｌ．ｃｆ．ｅｓｔｈｏｎｉｃａ,Ｒｈａｂｄｏｃｈｉｔｉｎａｓｐ．,Ｃａｌｐｉｃｈｉｔｉｎａ？ｓｐ．和疑源类Ｌｏｐｈｏｓｐｈａｅｒｉ－ｄｉｕｍｓｐ．,Ｌｅｉｏｓｐｈａｅｒｉｄｉａｓｐｐ．,Ｍｉｃｒｈｙｔｒｉｄｉｕｍｓｐ．,？Ａｃａｎｔｈｏｄｉａｅｒｏｄｉｕｍｓｐ．,Ｂａｌｔｉｓｐｈａｅｒｉ－ｄｉｕｍｓｐｐ．等微体化石确定河南信阳西双河地区苏家河群浒湾组为早奥陶世。它是桐柏－大别造山带（河南部分）第一次发现的有可靠古生物证据的奥陶纪地层。同时为该造山带区域地层序列的建立积累了资料,并为与秦岭造山带的衔接提供了新线索。此外还指出浒湾组的几丁虫生物群属于华南古生物地理区。     

叶刺瘿螨亚科四新种记述(蜱螨亚纲:瘿螨科)

本文记述叶刺瘿螨亚科４新种：长瘤上三脊瘿螨Ｃａｌｅｐｉｔｒｉｍｅｒｕｓ ｌｏｎｇｉｔｕｂｅｒｅｒｉｓ ｓｐ．ｎｏｖ．,梅叶刺瘿螨Ｐｈｙｌｌｏｃｏｐｔｅｓ ｍｕｍｅ ｓｐ．ｎｏｖ．,柿丽瘿螨Ｃａｌａｃａｒｕｓ ｄｉｏｓｐｙｒｉｓ ｓｐ．ｎｏｖ．和拟福刺瘿螨Ａｃｕｌｕｓ ｐａｒａｆｏｃｋｅｕｉ ｓｐ．ｎｏｖ．,附有形态特征图。     

浙江江山晚奥陶世长坞组疑源类化石

所描术的长坞组凝源类轻度炭化,有较高的分异度,包含３６属４７种,４比较种,４未知种。其中两新种：Ｃｙｍａｔｉｏｇａｌｅａ ｊｉａｎｇｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．和Ｌｅｉｏｆｕｓａ ｃｒａｓｓａ ｓｐ．ｎｏｖ．。确定了长坞组时代为晚奥陶世Ａｓｈｇｉｌｌｉａｎ期,伴生的三叶虫、腕足类、腹足类及头足类化石也支持这一观点。     

植绥螨科四新种记述（蜱螨亚纲：植绥螨科）

本文记述植绥螨科４新种：长囊钝绥螨Ａｍｂｌｙｓｅｉｕｓ ｌｏｎｇｉｓａｃｃａｔｕｓ ｓｐ．ｎｏｖ．,钩囊钝绥螨Ａ．ｓｔｒｏｂｏｃｏｒｙｃｕｓ ｓｐ．ｎｏｖ．,新裴济钝绥螨Ａ．ｎｅｎｆｉｊｉｅｎｓｉｓ ｓｐ．ｎｏｖ．及侧膜盲走螨Ｔｙｐｈｌｏｄｒｏｍｕｓ ｌａｔｅｒｉｓ ｓｐ．ｎｏｖ．。     

河南泌阳凹陷古近纪核桃园组遗迹化石组合及其环境意义——兼论深水湖泊遗迹相特征

南襄盆地泌阳凹陷古近纪核桃园组湖泊沉积中发育大量遗迹化石,含5个遗迹组合,形成于从滨湖到深湖的不同沉积环境中。Taenidiumserpentinum遗迹组合反映稍有覆水并周期性暴露的低能滨湖环境;Skolithos linearis遗迹组合代表湖泊中上临滨环境;Planolites montanus遗迹组合与低能浅湖环境有关;Skolithos verticalis遗迹组合形成于浅湖的远源风暴沉积中;Semirotundichnus dongyingensis遗迹组合发育在贫氧的半深湖-深湖沉积环境中。     

Triassic trace fossils from lacustrine shoreline deposits of the Passaic formation,douglassville, pennsylvania

Lake‐margin deposits of the Late Triassic Passaic Formation, Douglassville, Pennsylvania, have yielded a moderate variety of trace fossils. The greatest diversity and abundance of trace fossils occurs on the sole of a thin gray claystone overlain and underlain by gray siltstones. Specimens of Cochlichnus anguineus, Helminthoidichnites tenuis, Helminthopsis hieroglyphica, Treptichnus pollardi, and paired trails reflect simple, unspecialized, horizontal grazing as well as feeding traces under very shallow water lacustrine conditions. The lack of commonly associated Scoyenia burrows in these deposits may possibly be related to the degree of maturation of the organic debris available. The traces, as well as a lack of meniscate burrows, compare favorably to the Mermia ichnofacies, except Passaic deposits exhibit evidence of subaerial exposure. This unit most likely records a lacustrine expansion whereby grazing trails were emplaced under fully subaqueous conditions. Subsequent shallowing and desiccation, followed by sediment influx during rainstorms, favored preservation of these traces.

In contrast, the Scoyenia ichnofacies consists of feeding burrows of Scoyenia gracilis and Spongeliomorpha milfordensis within reddish brown siltstones and mud‐stones (redbed sequence). The Scoyenia ichnofacies records limited exploitation, by opportunistic infaunal deposit feeders, of lake‐margin nutrients carried in during occasional rainstorms that punctuated otherwise extended periods of aridity.     

Spiral trace fossils from the Permian Ecca Group of Zululand

The presence of spiral trace fossils is reported for the first time from six localities in strata of the Vryheid Formation of the Ecca Group (Lower Permian) in South Africa. These localities are all in the northeast part of the main Karoo basin of sedimentation. The fossils arc assigned to the ichnospecies Spirodesmos archimedeus , representing the spiral trail or burrow of a deposit-feeding organism. In contrast to other reports of spiral trace fossils, the Spirodesmos traces described here were formed in a shallow-water environment. This is established on both sedimentary and ichnofacies evidence. Associated trace fossils include Skolithos, Corophioides and Siphonichnus , all of which arc members of the Skolithos ichnofacies of Scilacher. The occurrence of Spirodesmos in this ichnofacies suggests that these strata were deposited in a marine basin.     

贵州台江下-中寒武统凯里组遗迹化石群落与环境关系的探讨

通过贵州台江凯里组中丰富的、分异度较高的、以原地埋藏为特征的遗迹化石的研究,探讨凯里组遗迹化石群落的沉积环境和埋藏环境。凯里组遗迹化石群落以节肢动物和软体动物的停息迹、爬行迹和游泳迹占优势,浅层内生爬行觅食潜穴和系统觅食潜穴占有一定的地位,也见有浅的居住滤食性潜穴,属Seilacher的Cruziana遗迹相,为正常浪基面和风暴浪基面之间的浅海软质基底陆棚低能环境,那里盐度正常、光照充足、含氧量充分、水体平静、沉积速率较快。在此环境中,浮游、游泳以及底栖爬行和固着生物类型大量地生长、繁殖和活动,表生遗迹和浅层内生遗迹十分丰富。生物死亡后的腐烂和分解,使得食泥生物大量繁盛。随着沉积物的覆盖和被埋藏生物遗体的分解、腐烂,沉积物内部还原能力逐渐增强,导致分解和腐烂过程终止。     

塔里木盆地晚泥盆世东河塘组河口湾相遗迹化石

河口湾具有特定的环境条件和沉积组成,其遗迹化石具有半咸水沉积的遗迹群落特征。描述和分析塔里木盆地塔中4井区上泥盆统东河塘组河口湾沉积中的遗迹化石和生物扰动构造后,发现3类遗迹组构,其中Ophiomorpha遗迹组构发育在纯净砂岩中,与河口湾潮汐砂坝有关;Skolithos遗迹组构发育在薄层砂岩中,与河口湾砂坪有关;Palaeophycus遗迹组构发育在泥岩中,与河口湾泥坪、砂泥坪有关。     

山东莱阳盆地早白垩世莱阳群的遗迹化石

山东莱阳早白垩阳群自下而上分为瓦屋夼组,林寺山组,止风庄组,水南组,龙旺庄组和曲格庄组。为一套河湖相沉积,产有较丰富,分异度较高的非海相遗迹化石和兽脚类恐龙足迹化石,共鉴定出遗迹属11个,未定属1个,其中遗迹种9个,未定种2个,遗迹化石是：Cochlichnus anguines,Diplocraterion parallelun,Helminthoidichnites tenuis,Palaeophycus tubularis,Planolites montanus ,Scolica sp.,Scoyenia gracilis,Skolithos linearis,Taenidium cameromensis,Thalassinoides sp.,恐龙足迹化石是：Paragrallator yangi,这些化石按习性可分为4类,即：居住构造, 爬行迹,觅食[迹和牧食迹,其中又以前3种为主,遗迹化石在剖面上的分布不均匀,以上部的水南组,龙旺庄,曲格庄3个组最丰富。     

山东济阳坳陷古近系沙河街组深水湖沉积中的遗迹化石

山东济阳坳陷古近系沙河街组深水湖沉积地层主要由深灰色、褐灰色泥岩、油泥岩、泥灰岩和石灰岩以及岩盐组成,浊流沉积发育。已发现深水型遗迹化石有12个遗迹属14个遗迹种,包括3个新遗迹属6个新遗迹种。根据这些遗迹化石的组成与分布特征及其围岩的沉积特征,可以划分出2种不同沉积环境下的遗迹化石群落,即(1)Mermoides-Neonereites遗迹群落,主要由觅食迹(Fodinichnia)和牧食迹(Pascichnia)组成,常见分子有Mermoides chezhenensis,Mermoides latiusculus,Neonereites uniserialis,Hel minthoidichnitescf.tenuis,Hel-minthopsis abeli,Pilichnus lacustris,Multilagueichnus lingpanensis,Cochlichnus anguineus,Gordiaichnosp.,Palaeophycus tubularis和Planolites beverleyensis等,它们被解释形成于半深水湖或较深水湖沉积环境;(2)Semi-rotundichnus遗迹群落,以半圆形、小碟形牧食迹为其特征,典型组成分子有Semirotundichnus dongyingensis,Pa-tellarisichnus boxingensis和Neonereites uniserialis等,它们均产生于深水湖沉积环境。     

Infaunal communities and tiering in Early Palaeozoic nearshore clastic environments: trace-fossil evidence from the Cambro-Ordovician of New South Wales

Understanding of the palaeoecology of Early Palaeozoic shallow-marine communities in sandy habitats is incomplete. Reasons for this include the poor preservation of body fossils and the dominance of Skolithos piperock in sandstones of that age. Cambrian and Ordovician deposits preserving diverse nearshore trace-fossil assemblages are therefore of critical importance for assessing the early evolution of marine ecosystems. The basal part of the Cambro-Ordovician Bynguano Formation of the Mootwingee area (New South Wales, Australia) is a series of interbedded sandstones and mudstones, which were deposited under nearshore conditions. These strata provide an early example of the Arenicolites ichnofacies. Two ichnocoenoses are distinguished in the sandstones of this unit. A 'predepositional' ichnocoenosis, which reflects the benthic community prior to episodes of sand deposition, includes dense aggregations of Rusophycus with rare Planolites. The 'postdepositional' ichnocoenosis is more diverse and includes Thalassinoides, Arenicolites (various types), Monocraterion, Skolithos, Trichichnus , and epichnial grooves. The tiered structure developed in this ichnocoenosis is preserved as a 'frozen tiered profile' and is characterised by a Thalassinoides tier, 10–30 cm in depth, which is cross-cut by Skolithos and Arenicolitesin the middle tier, and by Arenicolites and Trichichnusin the shallowest tier. The pattern of tiering indicates that a complex ecosystem of opportunistic organisms, capable of exploiting shifting substrates, had evolved by the earliest Ordovician. □ Predepositional, postdepositional frozen tier profile, ichnocoenosis, nearshore clastics, RUSOPHYCUS, Cambro-Ordovician, Bynguano Formation, Mootwingee, New South Wales.     

川中-川南地区上三叠统滨浅湖沉积中的遗迹化石

川中-川南地区上三叠统滨浅湖沉积中产有丰富的动物遗迹化石,识别为3大类6属8种,包括Sko-lithos linearis,S.verticalis,Ophiomorpha nodosa,Planolites beverleyensis,P.montanus,Palaeophycus tubularis,Taenidiumsatanassi和Cochlichnus anguineus,另外,逃逸构造也很发育。这些遗迹化石主要是无脊椎动物的居住迹、进食迹和觅食迹,大多为全浮痕和上浮痕保存。根据遗迹化石的组合特征及其沉积环境,可识别出3个遗迹组合:1)Skolithos linearis遗迹组合,主要由长的垂直或高角度倾斜的悬食居住潜穴构成,反映高能的砂质滨湖环境;2)Cochlichnus-Planolites遗迹组合,主要由进食迹和牧食迹组成,形成于低能的滨湖沼泽环境;3)Skolithos-Planol-ites遗迹组合,以居住潜穴和进食潜穴为主,遗迹化石的丰度较高,代表潮湿气候条件下的浅湖环境。根据生物扰动的分布及扰动强度,浅湖中可识别出两类扰动类型,即1)砂泥边界扰动,扰动主要发育于砂泥交界处,代表了浅湖下部环境;2)薄砂层扰动,扰动主要发育于薄砂层中,主要出现于浅湖中下部沉积中。     

Trace fossils in fluvial deposits of the uppermost Stockton Formation (Late Triassic), Newark Basin,New Jersey

Abstract

Fluvial deposits of the uppermost Stockton Formation (Late Triassic), Newark Basin, west-central New Jersey have yielded an assemblage of trace fossils. Dominated by burrows, specimens include Cochlichnus anguineus, Helminthoidichnites tenuis, Planolites beverleyensis, Scoyenia gracilis, Spongeliomorpha carlsbergi, Treptichnus bifurcus, Treptichnus pollardi, plant remains, and an undetermined vertebrate trace fossil. The assemblage belongs to the Scoyenia ichnofacies. On the basis of stratification and primary sedimentary structures, the beds are interpreted as deposits in a meandering stream environment. Larval insects, wormlike forms, and arthropods are probably responsible for most of the animal traces in wet or moist channel, floodplain, and point bar sediments subject to subaerial exposure.