Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Haikouichthys"'
We report the discovery of a new agnathan specimen from the Lower Cambrian Chengjiang Lagerstätte of China and thereby provide new evidence on the myomeres (V-shaped), the branchial apparatus (gill filaments and arches), the dorsal fin and the gonad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c082a8f7fcb90efabb0eb34ab245d461
https://doi.org/10.1098/rspb.2002.2104
https://doi.org/10.1098/rspb.2002.2104
Autor:
Carole J. Burrow, Carl B. Rexroad, Pierre Bultynck, Hans-Peter Schultze, Godfrey S. Nowlan, Alain Blieck, Susan Turner
Publikováno v:
Episodes. 33:234-241
The term vertebrate is generally viewed by systematists in two contexts, either as Craniata (myxinoids or hagfishes + vertebrates s.s ., i.e. basically, animals possessing a stiff backbone) or as Vertebrata (lampreys + other vertebrae-bearing animals
Publikováno v:
Proceedings of the Royal Society B: Biological Sciences. 278:1150-1157
The timing and sequence of events underlying the origin and early evolution of vertebrates remains poorly understood. The palaeontological evidence should shed light on these issues, but difficulties in interpretation of the non-biomineralized fossil
Publikováno v:
Acta Geologica Sinica - English Edition. 75:345-348
Two new chordates, Cathaymyrus haikouensis Luo et Hu sp. nov. and Zhongxiniscus intermedius Luo et Hu gen. et sp. nov. are studied in this paper. Both display numerous S-shaped myomeres on their trunk. C. haikouensis shows a long and slim body simila
Autor:
Degan Shu
Publikováno v:
Gondwana Research. 14:219-240
Excluding the sponges the Kingdom Animalia is usually divided into three subkingdoms: Diploblasta, Protostomia and Deuterostomia. The Cambrian Explosion consists of three major episodes, two of which were in the early Early Cambrian (one represented
Autor:
Donald R. Prothero
Publikováno v:
The Story of Life in 25 Fossils: Tales of Intrepid Fossil Hunters and the Wonders of Evolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::def1be677cef41a926113988c8b55c7e
https://doi.org/10.7312/prot17190-009
https://doi.org/10.7312/prot17190-009
Autor:
Xianguang Hou, Xi-guang Zhang
Publikováno v:
Journal of Evolutionary Biology. 17:1162-1166
In this study, we illustrate an exceptionally well-preserved Haikouichthys ercaicunensis from the Lower Cambrian Chengjiang fauna that displays complete single dorsal, ventral and caudal fins. This 530-million-year old vertebrate is fish-shaped and c
Autor:
Philippe Janvier
Publikováno v:
Comptes Rendus Palevol. 2:523-531
The question of the developmental characters which conventionally define the vertebrates, neural crests and epidermal placodes, and their indirect identification in the fossil material is briefly discussed. Comments are made upon some presumed Cambri
Autor:
Nicholas D. Holland, Junyuan Chen
Publikováno v:
BioEssays. 23:142-151
Recent advances in molecular biology and microanatomy have supported homologies of body parts between vertebrates and extant invertebrate chordates, thus providing insights into the body plan of the proximate ancestor of the vertebrates. For example,
Autor:
L. Chen, Jian Han, S. X. Hu, H. L. Luo, Min Zhu, Xingliang Zhang, Yong Li, Lei Chen, S. Conway Morris, Degan Shu
Publikováno v:
Nature. 402:42-46
The first fossil chordates are found in deposits from the Cambrian period (545–490 million years ago), but their earliest record is exceptionally sporadic and is often controversial. Accordingly, it has been difficult to construct a coherent phylog