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The Footprint of Nature: Ichthyolite (with one Lycopter Ichthyolite)
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The Footprint of Nature: Ichthyolite (with one Lycopter Ichthyolite)
大自然走过的痕迹鱼化石
Language:  Chinese and English bilingual
Author:  Edited by Li Weiqing
Pub. Date:  2006-01 Weight:   kg ISBN:  7506024217
Format:  Hardcover Pages:  53 pages
Subject:  Paleontology > Vertebrate
Series:   Size:  265x285mm
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One book and one Lycopter ichthyolite Lycopter ichthyolite is one the three representation ichthyolites in early biome in Rehe.Lycoptera lived in at least 100 million years ago.

For the earliest original Teleostei found in China. The academia once confirmed the stratum which wraps Lycoptera ichthyolite as the late Jurassic period stratum, and compartmentalized the time between the Jurassic period and the Cretaceous period by the disappearance time of Lycoptera.

Lycoptera is small, general 10com-20cm in length, distributing in China, Korea, Mongolia and the Transbaikal of Siberian in Russia. It has a big head and two big eyes, and the sense fossa on eye sockets continues to parietal bone. The sense fossa distribution on head is similar to the Palaeoniscus. The dental is big and run-up little by little from the front to the back. The teeth arrange in rows and the size is approximately the same. The lower limb bone of preoperculum is bigger than upper limb bone. The suboperculum is small. The branchiostegal rays are slim. The backbone cone looks like a canister in shape, and the middle shrinks a little. Lycoptera has supraclavicular neural spine and superior neural arch ossicle. The pectoral fin is big, and has a crassitude and not bifurcate fin ray inboard. The jumping-off point of dorsal fin and the anal fin is face to face, one is a bit forward or one is a bit backward. The dorsal fin is smaller than the anal fin or two are equal in size. Lycoptera has a furcation tail and round squamae which are bit thick.





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