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Showing results for tags 'agnathan'.
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From the album: Lower Devonian fossils
Cephalaspid tail segment Unknown species Lower Devonian Podolia Ukraine- 1 comment
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From the album: Lower Devonian fossils
Zascinaspis heintzi dorsal plate and rostrum, including details like orbits still preserved alongside a ventral plate from another pteraspid, possibly Podolaspis sp. Lower Devonian Podolia Ukraine -
All, I have got a strange looking osteostracan fish from Stjordalen Fm, Spitzbergen. It is Emsian. It is not identified but generally belongs to the elongated type of osteostarcan fish from that locality. As you can see it shows that a part of the exterior headshield layer is missing showing probably a viscelar/internal structures. Maybe it is an effect of predation or just a mechanical damage during formation of the fossil. Nevertheless, it is interesting. Pictures are not of the best quality but some internal structures seem to be visible. It is a strange looking one. Any comments or suggestions are very welcomed. Thanks, Tomasz
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Here are some color pencil sketches of some Paleozoic agnathans I drew many years ago (maybe 6 or 7 years ago). Time is scarce, but seeing these again I somehow feel inclined to start sketching some new concepts again Polybranchiaspis yunannensis (Galeaspida) Early Devonian Qujing, Yunnan, China Haikouella lanceolata (Agnatha, Haikouellidae) Early Cambrian Chengjiang, Yunnan, China Stensiopelta pustulosa (Cephalaspida) Early Devonian Ternopil, Ukraine Pteraspis (Pteraspiformes) Early Devonian Ternopil, Ukraine
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From the album: China
Please DO NOT... 1) Repost this without my permission 2) Claim this as your own 3) Post it elsewhere without stating permission situation If you are planning to change this image in any way, please contact me before you do so. This image has been copyrighted. ------------------------------------------------------------------- This is a Polybranchiaspis yunnanensis I acquired. Original location is unsure, but it is from the Early Devonian of Yunnan Province.© ©2012 Sinopaleus