Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Anna Krahl"'
Publikováno v:
Vertebrate Zoology, Vol 72, Iss , Pp 907-936 (2022)
Therapsids covered the entire spectrum of terrestrial locomotion from sprawling to parasagittal. Switching between sprawling and more erect locomotion may have been possible in earlier taxa. First, the axial skeleton shows little regionalization and
Externí odkaz:
https://doaj.org/article/6eb53061765d4286ad3262f7bab36c57
Publikováno v:
PeerJ, Vol 10, p e13342 (2022)
Background The Plesiosauria (Sauropterygia) are secondary marine diapsids. They are the only tetrapods to have evolved hydrofoil fore- and hindflippers. Once this specialization of locomotion had evolved, it remained essentially unchanged for 135 Ma.
Externí odkaz:
https://doaj.org/article/4e1083880d5e428dac8518c458109292
Autor:
Anna Krahl, Ulrich Witzel
Publikováno v:
PeerJ, Vol 9, p e12537 (2021)
Background Plesiosaurs, diapsid crown-group Sauropterygia, inhabited the oceans from the Late Triassic to the Late Cretaceous. Their most exceptional characteristic are four hydrofoil-like flippers. The question whether plesiosaurs employed their fou
Externí odkaz:
https://doaj.org/article/04a8544007544454ae35bda22863a21e
Publikováno v:
PLoS ONE, Vol 11, Iss 7, p e0158448 (2016)
Mid-diaphyseal cortical bone tissue in humeri of Nothosaurus spp. consists of coarse parallel-fibered bone, finer and higher organized parallel-fibered bone, and lamellar bone. Vascular canals are mainly arranged longitudinally and radially in a domi
Externí odkaz:
https://doaj.org/article/e2fe34aa25eb4732b1f769aa22f38201
Autor:
Anna Krahl, Ingmar Werneburg
Publikováno v:
The Anatomical Record. 306:1323-1355
The diapsid plesiosaurs were pelagic and inhabited the oceans from the Triassic to the Cretaceous. A key evolutionary character of plesiosaurs is the four wing-like flippers. While it is mostly accepted that plesiosaurs were underwater fliers like ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9004ab4b6544db5010df4d5583bc109
https://doi.org/10.1002/ar.25119
https://doi.org/10.1002/ar.25119
Publikováno v:
PalZ. 96:805-813
Plesiosaurians evolved four wing-like flippers that are morphologically similar to each other and were most likely used in underwater flight. Plesiosaurians have been the subject of a long research history as well as a long history of misidentificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::416ffdef85126a500a32d199d2e9cb82
https://doi.org/10.1007/s12542-022-00616-8
https://doi.org/10.1007/s12542-022-00616-8
Autor:
Anna Krahl
Publikováno v:
PalZ. 95:483-501
The terrestrial origins of the diapsid Sauropterygia and Testudines are uncertain, with the latter being highly controversially discussed to this day. For only 15 Ma, Nothosauroidea lived in shallow-marine seas of the Triassic. Contrastingly, the pel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7adc5755698795362d5e3bc1a178e79
https://doi.org/10.1007/s12542-021-00563-w
https://doi.org/10.1007/s12542-021-00563-w
Autor:
Sandra Hochscheid, Anna Krahl, Martin Sander, Andreas Lipphaus, Fulvio Maffucci, Ulrich Witzel
Publikováno v:
The Anatomical Record. 303:2177-2191
Adaptation of osteology and myology lead to the formation of hydrofoil foreflippers in Cheloniidae (all recent sea turtles except \(\textit{Dermochelys coriacea}\)) which are used mainly for underwater flight. Recent research shows the biomechanical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f069beb990b33078840e4dc5fec1358
https://doi.org/10.1002/ar.24311
https://doi.org/10.1002/ar.24311
Publikováno v:
PeerJ. 10
The Plesiosauria (Sauropterygia) are secondary marine diapsids. They are the only tetrapods to have evolved hydrofoil fore- and hindflippers. Once this specialization of locomotion had evolved, it remained essentially unchanged for 135 Ma. It is stil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3000255cba82df8edcadda49a421ab3b
https://pubmed.ncbi.nlm.nih.gov/35677394
https://pubmed.ncbi.nlm.nih.gov/35677394