科研之友
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摘要
In the present paper, an attempt has been made to compile the bibliography of the fossil echinoids of India and Pakistan in a classified form since 1837 till date (January, 2012) with a view to bringing out a status report on the taxonomic data of fossil echinoids of India and Pakistan besides pointing out their inconsistencies in light of current studies. The earliest report of regular echinoids in the Indian subcontinent is from the Permo-Carboniferous and Late Permian sediments of Karakoram and Salt Range respectively. The irregular echinoids appeared in Jurassic Period. While there is no record of echinoids from the Triassic Period, rare occurrence of echinoids are known from the Jurassic Period. However, the prolific and diversified development of echinoids in the Indian Subcontinent has been observed during the Cretaceous and Eocene periods. The temporal and spatial distribution of the echinoid fauna has also been discussed.
- 出版日期2012-12
