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Guiyu was described by Chinese palaeontologist Zhu Min and others in 2009, based on a near-complete articulated specimen.The generic name Guiyu is a transliteration of the Mandarin 鬼魚 guǐyú "ghost fish" and the specific name oneiros is from Greek ὄνειρος "dream".
Min Zhu (Chinese: 朱敏; born October 1965) , is a Chinese paleontologist at the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), a CAS Member. [1] He completed his undergraduate studies at Nanjing University and completed his PhD thesis at IVPP. He is currently leading a research team from IVPP.
Guiyu oneiros, the earliest known bony fish, lived during the Late Silurian, 425 million years ago. [1] It has a combination of both ray-finned and lobe-finned features. Bony fish are characterized by a relatively stable pattern of cranial bones, rooted, medial insertion of mandibular muscle in the lower jaw.
Sarcopterygii (/ ˌ s ɑːr k ɒ p t ə ˈ r ɪ dʒ i. aɪ /; from Ancient Greek σάρξ (sárx) 'flesh' and πτέρυξ (ptérux) 'wing, fin') — sometimes considered synonymous with Crossopterygii (from Ancient Greek κροσσός (krossós) 'fringe') — is a clade (traditionally a class or subclass) of vertebrate animals which includes a group of bony fish commonly referred to as lobe ...
Guiyu may refer to: Guiyu oneiros (鬼鱼), extinct bony fish; Guiyu (town) (贵屿镇), town in Chaoyang District, Shantou, Guangdong, China
Guiyu oneiros: Guiyu oneiros, the earliest known bony fish. It has the combination of both ray-finned and lobe-finned features, although analysis of the totality of its features place it closer to lobe-finned fish. [31] [32] [33] Andreolepis
A study on the morphology of scales and squamation pattern in Guiyu oneiros is published by Cui, Qiao & Zhu (2019). [140] A study on the anatomy and phylogenetic relationships of Brazilichthys macrognathus is published by Figueroa, Friedman & Gallo (2019). [141]
The fossil findings of primitive bony fishes such as Guiyu oneiros and Psarolepis, which lived contemporaneously with Entelognathus and had pelvic girdles more in common with placoderms than with other bony fish, show that it was a relative rather than a direct ancestor of the extant gnathostomes. [13]