Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Rhizodontida"'
Autor:
Thomas J. Challands, Zerina Johanson, Jennifer A. Clack, Stephanie E. Pierce, Jonathan E. Jeffery
The Rhizodontida are a group of tetrapodomorph sarcopterygian fishes with a worldwide distribution in the Devonian and Carboniferous periods. Rhizodontids were first described in the U.K., with Carboniferous taxa such as Rhizodus, Strepsodus, and Arc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69f4658f37020d02e03ccfd3aa978e63
Autor:
Ihna Yoo, Natalia K Taft, Neil H. Shubin, Thomas A. Stewart, Edward B. Daeschler, Justin B. Lemberg
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance To explain how limbs evolved from fins, paleontologists have traditionally studied the endoskeleton. Here, we provide a comparative analysis of the other skeletal system of fins, the dermal skeleton. We describe dermal ray anatomy for 3
Autor:
Jonathan E. Jeffery
Publikováno v:
Journal of Systematic Palaeontology. 10:475-519
Well-preserved material is described of several specimens of Screbinodus ornatus, a small (approximately 1.5 metres long) rhizodontid sarcopterygian, from the Visean (Mississippian, Carboniferous) of Scotland. This species shows numerous ‘typical
Publikováno v:
Palaeoworld. 19:55-74
The biogeographic significance of Devonian macrovertebrate assemblages from East Gondwana is reviewed, with updates incorporating recent discoveries including new placoderms (antiarchs, groenlandaspid arthrodires, phyllolepids), sarcopterygians (mand
Autor:
Anne Warren, Jillian Garvey, Zerina Johanson, John A. Long, Katherine Emma. Parker, Timothy Holland
Publikováno v:
Journal of Vertebrate Paleontology. 27:295-315
New material of the Australian Lower Carboniferous rhizodontid Barameda provides additional information on poorly known aspects of rhizodontid anatomy, including the braincase and branchial arches, and indicates that two species of Barameda are prese
Autor:
Jonathan E. Jeffery
Publikováno v:
Palaeontology. 49:113-132
The Carboniferous genus Strepsodus contains several described species, but has been mired in taxonomic confusion for nearly 150 years. The little-known genus Archichthys (with two described species) is usually treated as a junior synonym of Strepsodu
Autor:
Susan Turner, Anne Warren
Publikováno v:
Transactions of the Royal Society of Edinburgh: Earth Sciences. 96:113-130
The presence of a petaloid pattern (previously known as dark dentine) in crosssections of teeth of the embolomere Pholiderpeton attheyi has been used as a synapomorphy of theembolomeres or of the embolomeres plus the stem tetrapod, Crassigyrinus
Publikováno v:
Journal of Vertebrate Paleontology. 25:46-62
New rhizodontid pectoral girdle and fin material from Queensland, Australia (Middle Paddock site, Ducabrook Formation, Lower Carboniferous) includes cleithra, clavicles, anocleithra, scapulocoracoids, a humerus, an ulna, and a probable ulnare. The mo
Publikováno v:
Journal of Vertebrate Paleontology. 25:8-18
The original description of the pectoral fin of the rhizodontid Barameda decipiens emphasized the narrowness of the fin, based on a narrow radius and low number of preserved lepidotrichia. Elements of the vertebral column were said to be most similar
Publikováno v:
Lethaia. 38:27-36
Lepidotrichia are dermal elements located at the distal margin of osteichthyan fins. In sarcopterygians and actinopterygians, the term has been used to denote the most distal bony hemisegments and also the more proximal, scale-covered segments which