Chuchinolepis
Web盾皮鱼纲（學名：Placodermi）是一类已经滅绝的鱼类，出现于4.3億年前的志留纪中期，滅絕於3.59亿年前的泥盆纪末期，共繁衍了近7000萬年 。 盾皮魚類是脊椎动物，是最原始的有颌鱼类，头部和胸部覆盖骨甲，故得名。 它们的颌是由头部两侧的支撑鳃的弓狀骨演化而来 … Bothriolepis (from Greek: βόθρος bóthros, 'trench' and Greek: λεπίς lepis 'scale') was a widespread, abundant and diverse genus of antiarch placoderms that lived during the Middle to Late Devonian period of the Paleozoic Era. Historically, Bothriolepis resided in an array of paleo-environments spread across every paleocontinent, including near shore marine and freshwater settings. Most sp…
Chuchinolepis
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WebVarious placoderm species, including the famous Dunkleosteus This list of placoderms is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members of the class Placodermi. This list excludes purely vernacular terms. WebJan 1, 1996 · The pectoral fin articulation of the Chuchinolepididae is argued to have only one dermal joint. It is suggested that the pectoral fin of the Chuchinolepididae is …
Web202 Fig. 3. Meemannia eos Zhu et al. 2006. A, reconstruction of skull roof; B, dorsal view of skull roof, IVPP V14534.3, a speci- men sectioned at positions marked S1 -S15; C, sketch drawings of ... WebFive new antiarchs (Yunnanolepis porifera n.sp., Mizia longhuaensis n.gen., n.sp., Phymolepis guoruii n.sp., Chuchinolepis robusta n.sp. and C. sulcata n.sp.) are described on the basis of the new material from the Early Devonian of Qujing, Yunnan Province, south-western China. Y. chii is reexamined to show the Chang's apparatus and …
WebAn extended phylogenetic analysis of Galeaspida indicates that Qushiaspis, Gantarostrataspis, Wumengshanaspis, and Rhegmaspis form a monophyletic group, the … WebChuchinolepis Name Homonyms Chuchinolepis Chang, 1978 Bibliographic References. In [Ed.] Symposium on the Devonian System of South China, 1974. Geological Press, Beijing Neave, S. A. (1939-1996). Nomenclator Zoologicus vol. 1-10 Online.
WebCheirolepis (from Greek: χείρ kheír, 'hand' and Greek: λεπίς lepis 'scale') is an extinct genus of ray-finned fish that lived in the Devonian period of Europe and North America. It is the …
WebParayunnanolepis xitunensis is an extinct, primitive antiarch placoderm. The fossil specimens, including a marvelously preserved, intact specimen, are known from the Lochkovian Epoch -aged Xitun Formation of Early Devonian Yunnan. The armor is very similar to that of Yunnanolepis, but is distinguished by being comparatively more flattened. dan whittenWebMay 26, 2024 · Wang 1978;L i u 1992), Chuchinolepis gracilis (Liu 1992;Z h u 1996 ), and Zhanjilepis sp. (Liu 1992 ), which are also known from the Xitun Formation in East Yunnan (Fig. 7a, c )( L i u dan whittemore musicWebAsterolepis is an extinct genus of antiarch placoderms from the Devonian of North and South America and Europe. [1] They were heavily armored flat-headed benthic detritivores with distinctive jointed limb-like pectoral fins [2] and hollow spine. [3] The armor plate gives the Asterolepis a box-like shape. birthday wishes to my elder sisterWebThey were one of the first species recognized for what they were, as their fossils are common in the Old Red Sandstone formation studied by geologists in the early 19th century. Due to their extreme divergence from modern-day fish, they were a puzzle unsolved until Charles Darwin brought forward his theories on evolution. [citation needed] dan whitten attorneyWebFeb 2, 2013 · Interpretation of the dermal skeletal tissues in Yunnanolepis and Chuchinolepis is difficult due to recrystallization. Comparison to published reports, however, shows that the three-layered structure with a boundary of compact tissue between the superficial and medial layer is common to the antiarchs (Heintz, 1929 ; Downs and … birthday wishes to my loverWebChalepini is a tribe of leaf beetles in the family Chrysomelidae.There are at least 50 genera and 830 described species in Chalepini. birthday wishes to my friend wifehttp://www.prehistoric-wildlife.com/articles/placoderm-fish.html dan whitten attorney portage indiana