摘要：
牙形石广泛分布于寒武纪至三叠纪的海洋里。三叠纪牙形石的种类、形态、大小和产出频率受海水盐度、深度、温度和水动力条件等因素控制，不同的牙形石生态特征即牙形石相反映不同的沉积环境，所以，根据三叠纪牙形石相和牙形石特征属种的丰度，不但可区分三叠纪不同的沉积相区（台地相区、台地边缘相区、盆地相区），恢复三叠纪古地理面貌，而且可划分出牙形石生物地理区。中国早三叠世牙形石归属特提斯生物大区亚洲生物省，并可进一步划分出两个生物亚省和若干生态区。
Abstract:
Conodonts, ranges from Cambrian to Triassic, were distributed widely in the palaeocean. The species variety, morphotype, big or small, and output rate of Triassic conodonts are controlled by the factors of the sea water such as salinity, depth, temperature, and hydrodynamic condition. Different ecological characteristics of conodonts, i.e. conodont faces indicates different sedimentary environment. Therefore, according to the conodont facies and abundance of the characteristic conodont species, the sedimentary facies regions (platform facies region, platform-margin facies region, basinal facies region) can be recognized, and Triassic palaeogeographic face can be reconstructed, but also the conodont biogeographic regions can be recognized. Early Triassic conodonts in China are belonged to the Asia biogeographic province, Tethys biogeographic realm, and can be subdivided into two biogeographic subprovinces and several communities.
杨守仁 郝维城 江大勇. 三叠纪牙形石的古环境与古地理意义[J]. 古地理学报, 2001, 3(1): 78-84.
Yang shouren Hou Weicheng Jiang Dayong. Palaeoenvironmental-Palaeogeographic significance of Triassic Conodonts[J]. JOURNAL OF PALAEOGEOGRAPHY, 2001, 3(1): 78-84.