The developmental trend of labrum and median eyes of Orsten-type preserved Phosphatocopina (Crustacea) |
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| Authors: | LIU Zheng & DONG XiPing School of Earth Space Sciences Peking University Beijing China State Key Laboratory of Palaeobiology Stratigraphy Nanjing Institute of Geology Palaeontology Chinese Academy of Sciences Nanjing |
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| Institution: | LIU Zheng 1,2 & DONG XiPing 1,2 1 School of Earth , Space Sciences,Peking University,Beijing 100871,China,2 State Key Laboratory of Palaeobiology , Stratigraphy,Nanjing Institute of Geology , Palaeontology,Chinese Academy of Sciences,Nanjing 210008 |
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| Abstract: | The Phosphatocopina (Crustacea,Arthropoda) is an important group of 'Orsten-type' preserved fossils.It is resolved as the sister-group of Eucrustacea.Here we study the labrum,the median eyes,and the inner lamella of Phosphatocopina based on the selected specimens respectively from western Hunan,South China,and Sweden.The labrum characters of different species exhibit interspecific difference.The ratio of labrum length/shield length is significant to the reconstruction of the ontogeny of phosphatocopines.The... |
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| Keywords: | Phosphatocopina Crustacea Orsten-type preservation morphology ontogeny Cambrian South China Sweden |
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