海南岛白沙县金波早石炭世早期腕足动物群  

EARLY CARBONIFEROUS BRACHIOPODS FROM JINBO OF BAISHA COUNTY, HAINAN ISLAND

作　　者：廖卓庭[1] 张仁杰[2] 

机构地区：[1]中国科学院南京地质古生物研究所,南京210008 [2]中国地质调查局宜昌地质矿产研究所,湖北宜昌443003

出　　处：《古生物学报》2006年第2期153-174,共22页Acta Palaeontologica Sinica

摘　　要：海南岛地区的石炭纪腕足动物,以往缺乏研究和描述。产于白沙县金波的早石炭世腕足动物化石群,经鉴定共有22属,30种和未定种,其中4新种;这是该岛迄今发现的最丰富、较可靠的早石炭世杜内期腕足动物群。在属种组合上,这个动物群以石燕贝目分子为优势组分;在区系特征上,它与扬子区系有一定差别,而与北方生物地理区系有较多的相似性和可比性;这个动物群的发现,为进一步探讨和解释海南岛早石炭世构造古地理格局及其演化提供了重要线索。文中还详细讨论了相关地层名称的取舍等问题。Because the Carboniferous strata in most areas of the Hainan Island show a and are covered with thick high-grade metamorphism and dense vegetation, it is not easy to collect fossils. Previously-collected fossil brachiopods are poorly preserved, except a list of some identified forms and a few attached photos, no systematic study and description have been made. The fossil brachiopods reported in this paper were collected, from the vicinity of the Yajia new village at Jinbo of Baisha county, Hainan （Text-figure 1）. Rocks containing fossils are earth-yellow calcareous siltstons, with an exposed area being only about 10-- 20 m^2. Here, fossils are badly preserved and mostly are internal and external molds, and inner cores. There are 22 brachiopod genera, 30 species and indeterminate species, of which 4 species are new. Other fossils found in the same horizon are bivalve （one specimen）, gastropod fragments and crinoid stems.

关 键 词：腕足动物 区系特征 杜内期 南好组 海南岛 

分 类 号：Q915[天文地球—古生物学与地层学]