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胡氏贵州龙新生个体形态学特征

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文章导航 > 沉积与特提斯地质 > 2022 > 42(4): 556-571

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温谦谦, 张启跃, 闵筱, 周长勇, 文芠, 胡世学, 黄金元. 2022. 胡氏贵州龙新生个体形态学特征. 沉积与特提斯地质, 42(4): 556-571. doi: 10.19826/j.cnki.1009-3850.2022.04007
引用本文: 温谦谦, 张启跃, 闵筱, 周长勇, 文芠, 胡世学, 黄金元. 2022. 胡氏贵州龙新生个体形态学特征. 沉积与特提斯地质, 42(4): 556-571. doi: 10.19826/j.cnki.1009-3850.2022.04007
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WEN Qianqian, ZHANG Qiyue, MIN Xiao, ZHOU Changyong, WEN Wen, HU Shixue, HUANG Jinyuan. 2022. Characteristics of the newborns of Keichousaurus hui. (Reptilia Sauropterygia) from Xingyi Fauna(Ladinian,Middle Triassic), Guizhou Province. Sedimentary Geology and Tethyan Geology, 42(4): 556-571. doi: 10.19826/j.cnki.1009-3850.2022.04007
Citation: WEN Qianqian, ZHANG Qiyue, MIN Xiao, ZHOU Changyong, WEN Wen, HU Shixue, HUANG Jinyuan. 2022. Characteristics of the newborns of Keichousaurus hui. (Reptilia Sauropterygia) from Xingyi Fauna(Ladinian,Middle Triassic), Guizhou Province. Sedimentary Geology and Tethyan Geology, 42(4): 556-571. doi: 10.19826/j.cnki.1009-3850.2022.04007
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胡氏贵州龙新生个体形态学特征

  • 1. 山东科技大学地球科学与工程学院, 山东 青岛 266590;

  • 2. 中国地质调查局成都地质调查中心, 四川 成都 610081;

  • 3. 南京大学, 江苏 南京 210023

  • 基金项目:

    本文受中国地质调查局项目(DD20160020，DD20190054)资助

详细信息
    作者简介: 温谦谦(1994-)，女，贵州兴义人，硕士研究生，从事古生物研究。E-mail：15808591057@163.com
    通讯作者: 张启跃(1970-)，男，研究员，主要从事区域地质调查与古生物研究。E-mail：yxzqy@sina.com

  • 中图分类号: Q915.4

Characteristics of the newborns of Keichousaurus hui. (Reptilia Sauropterygia) from Xingyi Fauna(Ladinian,Middle Triassic), Guizhou Province

  • 1. College of Earth Sciences and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;

  • 2. Chengdu Center, China Geological Survey, Chengdu 610081, China;

  • 3. Nanjing university, Nanjing 210023, China

More Information
    Corresponding author: ZHANG Qiyue

    摘要
  • 本文观察并测量了中三叠世拉丁期兴义动物群中的12件包含胚胎的胡氏贵州龙化石及已产出的49个幼体胡氏贵州龙标本；对成年个体与新生个体的体长、肱骨长、股骨长与眼眶长径的特定性状比率关系进行了统计分析；展示了成年个体、胚胎及幼年个体的特征差异，首次描述了胡氏贵州龙新生个体形态学特征；定量刻画了胡氏贵州龙新生个体的头骨、颈椎、背椎、荐椎、尾椎和四肢，获得了更完整、精确的解剖学信息。新材料揭示胡氏贵州龙新生个体的头骨平均长度为8.56mm，肱骨明显短于股骨，肱股比例为1∶1.09。头部呈饱满的三角形，吻部短而钝，眼眶大而圆，具有独特的狭长型上颞孔。此外，研究发现胡氏贵州龙的生产方式为胎儿头部首先从母体产道产出，同时新生个体的吻-臀距稳定在31.04~32.26mm这个数值范围内，且该数值的变动与母体大小无直接联系。本次研究为胡氏贵州龙的生殖方式、个体发育、特别是异速生长研究提供了新的材料。
    In this paper, 12 specimens with embryos and 49 newborns of the Keichousaurus hui from the Xinyi fauna of the Ladinian, the Middle Triassic are observed and measured.The ratio relationships of specific traits of body length, length of the humerus, femur and orbital length of the adult individuals and newborns have been carried on the statistical analysis. The characteristics of adult, embryo and young individuals are demonstrated, and the morphological characteristics of newborn of the Keichousaurus hui are described for the first time. The skull, cervical vertebra, dorsal vertebra, sacral vertebra, caudal vertebra and limbs of newborns of the Keichousaurus hui are quantitatively described. Besides, more complete and accurate anatomical information is obtained. The new materials show that the average length of the skull is 8.56mm, the humerus is shorter than the femur, and the ratio of humerus/femur is 1∶1.09. The head is triangular, the snout is short and blunt, the orbit is large and round with a unique narrow superior temporal foramen. In addition, it is demonstrated that the fetal head of the Keichousaurus hui is firstly produced from the maternal birth canal. Meanwhile, the distance between snout and hip of the newborns keep stable with a range of 31.04~32.26mm. Furthermore the change of this value is not directly related to the maternal size. This study provides new materials for the research of reproductive mode, ontogeny, especially allallic growth of the Keichousaurus hui.
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    • 参考文献(21)

  • Cheng Y N, Wu X C, Ji Q, et al., 2004. Triassic marine reptiles gave birth to live young[J]. Nature, 432: 383-386.

    Cheng Y N, Holmes R, Wu X C, et al.,2009. Sexual Dimorphism and Life History of Keichousaurus hui (Reptilia: Sauropterygia)[J]. Journal of Vertebrate Paleontology, 29 (2): 401-408.

    CurrieP Jand Carroll R L,1984. Ontogenetic changesin the eosuchian reptile Thadeosaurus[J]. Journal of Vertebrate Paleontology, 4: 68-84.

    Holmes, Cheng Y N, Wu X C, et al.,2010. New information on the skull of Keichousaurus hui (Reptilia: Sauropterygia) with comments onsauropterygian interrelationships[J]. Journal of Vertebrate Paleontology, 28 (1): 78-84.

    Lin K and Rieppel O, 1998. Functional morphology and ontogeny of Keichousaurus hui (Reptilia: Sauropterygia)[J]. Fieldiana：Geology, N. S., 39: 1-35.

    Motani R, Jiang D Y, Riepple O, et al.,2015. Adult sex ration, sexual dimorphism and sexual selection in a Mesozoic reptile[J]. Proceedings of the Royal Society B: Biological Sciences, 282(1815): 1-7.

    Motani R, Jiang D Y, Andrea T, et al.,2014. Terrestrial Origin of Viviparity in Mesozoic Marine Reptiles Indicated by Early Triassic Embryonic Fossils[J]. PLOS ONE, 9(2): 1-6.

    Sander P M, 1989. The pachypleurosaurids (Reptilia: Nothosauria) from the Middle Triassic of Monte San Giorgio (Switzerland) with the description of a new species[J]. Philosophical Transactions of the Royal Society of London, Ser B: Biological Sciences, 325: 561-666.

    Xue Y, Jiang D, Motani R, et al., 2015. New information on sexual dimorphism and allometeic growth in Keichousaurus hui, apachypleurosaur from the Middle Triassic of Guizhou, South China[J]. Acta Palaeontologica Polonica, 60(3): 681-687.

    程龙,2015.滇黔地区中晚三叠纪之交海生爬行动物演替研究[D].武汉:中国地质大学,9-125.

    付宛璐,张璇,季承,等,2013.贵州兴义中三叠世胡氏贵州龙形态特征及生殖方式初[J].北京大学学报(自然科学版),49(5):839-846.

    蒋志文,2002.云南富源贵州龙动物群的发现及意义[J].云南地质,21(2):183-191.

    秦燕娇,喻美艺,罗永明,2014.胡氏贵州龙的个体发育研究[J].贵州地质,31(3):210-214.

    秦燕娇,2014.胡氏贵州龙个体发育及其生态环境研究[D].贵州:贵州大学资源与环境学院,1-62.

    孙燕燕,2012.温暖气候区蜥蜴卵胎生进化的选择优势[D].南京:南京师范大学生命科学学院,1-98.

    王立亭,1996.胡氏贵州龙(Keichousaurushui)的产出层序及时代讨论[J].贵州地质,13(3):209-212.

    王立亭,2000.贵州中晚三叠世海生爬行动物研究概况[J].贵州地质,17(1):27-29.

    吴延庆,2017.蛇类卵胎生繁殖模式选择劣势的生理和遗传补偿机制[D].南京:南京师范大学生命科学学院,1-155.

    杨钟健,1958.贵州新发现的肿肋龙化石[J].古脊椎动物学报,2(2-3):69-81.

    杨钟健和董枝明,1972.中国三叠纪水生爬行动物[M].北京:科学出版社,17-27.

    杨瑞东,1997.兴义顶效贵州龙动物群的古生态环境讨论[J].贵州地质,14(1):35-39.

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收稿日期:  2022-02-15
修回日期:  2022-03-18

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