Early Carboniferous Gastropoda from the Tamworth Belt, New South Wales, Australia
Early Carboniferous Gastropoda from the Tamworth Belt, New South Wales, Australia
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澳大利亚新南威尔士州塔姆沃思带的早石炭世腹足类
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
E. K. Yoo
中科院分区：
文献类型：
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作者：
E. K. Yoo
在图尔库巴砂岩的兰加里石灰岩段(图尔奈期早期至中期)、纳莫伊组(图尔奈期中晚期)、丹加菲尔德组(图尔奈期晚期)以及新南威尔士东部梅尔伍德组(维斯期中晚期)的金达林泥岩段的最上部记录了丰富的微小早石炭世腹足类动物群，并作为绿泥质替代物保存完好。本文提出7个新属：弯曲螺属、球囊藻属、微耳壳属、Kyndalynia属、Palaeoalvania属、Kimina属和Pseudoaclisina属。在79种腹足类动物中，有40种为新记录种，分别为：幼虫属(Eupemites Pustula)、隆冠花属(Cymbularia Carinata)、角腹水蚤(Bellerophon(Bellerophon)kyndalynensis)、水母水母(Bellerophon(B.)Swainsensis、Knightites(Retispira)Multilirata、Knightites(R.)三角藻、短链管藻、鳞片螺旋体、舌扁平线虫、透明扁平线虫、放射形线虫、脐带线虫、锥形弯头线虫、腐烂角线虫、细长角藻、扁平角藻、网纹紫草、粗线虫、粗线虫、螺旋藻、凹凸纹夜蛾、小卷蛾、小卷蛾、古平纹盘藻、细纹夜蛾、小角叉尾藻、金龟子、凤尾藻、金龟子另外还有17种形式被区别对待，但由于保存不善或缺乏材料，这些形式没有被命名。弯曲螺属(Campbellospira)是一种浮游营养型原贝类，其特征为具硒硫化物和长缝，被归类为侧耳螺总科。GloboBulimoga是一种罕见的球状纺锤形贝壳，具有柱状褶皱和偏斜的原贝壳，暂定归属于角螺总科。基米纳和古阿尔瓦尼亚被归入异腹足目。Aclisina turgida Yoo是一新属的基础上，由Murchisonioidae转入异腹足目。盾片吸虫由小鼠耳吸虫总科转移到吸虫总科。目前还不可能将微囊藻属、Kyndalynia和Eucochlis这三个属按任何现有的顺序排列。
Rich faunas of minute, Early Carboniferous gastropods, elegantly preserved as chloritic replacements, are documented from the Rangari Limestone Member of the Tulcumba Sandstone (early to middle Tournaisian), the Namoi Formation (middle to late Tournaisian), the Dangarfield Formation (late Tournaisian) and the uppermost part of the Kyndalyn Mudstone Member of the Merlewood Formation (middle or late Visean) of eastern New South Wales. Seven new genera Campbellospira, Globobulimorpha, Microcochlis, Kyndalynia, Palaeoalvania, Kimina and Pseudoaclisina are proposed. Of the 79 gastropod species (referable to 47 genera and subgenera), 40 are described as new: Euphemites pustula, Cymbularia carinata, Bellerophon (Bellerophon) kyndalynensis, Bellerophon (B.) swainsensis, Knightites (Retispira) multilirata, Knightites (R.) triangularis, Straparollus brevis, Serpulospira scalariformis, Platyschisma lingua, Platyschisma vitrea, Angyomphalus radianodosa, Eotomaria umbilicata, Campbellospira conica, Glabrocingulum pustulum, Hesperiella elongata, Hesperiella planorbis, Agnesia reticulata, Worthenia crenilunula, Gyronema nacre/ormis, Rhabdotocochlis turgida, Naticopsis (Naticopsis) minuta, Palaeozygopleura obesa, Pseudozygopleura gracilis, Leptozyga costata, Ceraunocochlis australis, Ceraunocochlis tenuis, Strobeus ovalis, Girtyspira inflata, Globobulimorpha costata, Microcochlis parva, Eucochlis depressa, Eucochlis umbiliparva, Kyndalynia inflata, Kimina australis, Kimina minor, Kimina globosa, Pseudoaclisina microspirulata, Palaeoalvania talenti, Donaldina minutissima, Streptacis gundyensis. Seventeen additional forms are discriminated but because of bad preservation or dearth of material they are not named. Campbellospira, characterised by a planktotrophic protoconch with a selenizone and long slit is assigned to Pleurotomarioidea. Globobulimorpha, an unusual globular fusiform shell with a columellar fold and deviated protoconch is tentatively assigned to Subulitoidea. Kimina and Palaeoalvania are placed in Order Heterogastropoda. Aclisina turgida Yoo is made the basis of a new genus Pseudoaclisina and transferred from Murchisonioidea to Order Heterogastropoda. Stegocoelia is transferred from Murchisonioidea to Loxonematoidea. It is not possible at present to place three genera, Microcochlis, Kyndalynia and Eucochlis in any existing Order.