Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Ryuji, Takasaki"'
Autor:
Anthony R. Fiorillo, Paul J. McCarthy, Grant Shimer, Marina B. Suarez, Ryuji Takasaki, Tsogtbaatar Chinzorig, Yoshitsugu Kobayashi, Paul O’Sullivan, Eric Orphys
Publikováno v:
Geosciences, Vol 14, Iss 2, p 36 (2024)
The Nanushuk Formation (Albian–Cenomanian) crops out over much of the central and western North Slope of Alaska, varying from ≈1500 to ≈250 m thick from west to northeast. The Nanushuk Formation records an inter-tonguing succession of marine an
Externí odkaz:
https://doaj.org/article/fbefd291bf194111be21a7010bec5da5
Autor:
Yoshitsugu Kobayashi, Ryuji Takasaki, Anthony R. Fiorillo, Tsogtbaatar Chinzorig, Yoshinori Hikida
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract The record of therizinosaurs is rich in Asian countries such as Mongolia and China. Fragmentary therizinosaur specimens have been reported from the Lower and Upper Cretaceous deposits in Japan. One of these specimens, from the lower Campania
Externí odkaz:
https://doaj.org/article/3d117fa6813244359dd38bb0cd615bab
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
Abstract Here we describe a partial hadrosaurid skeleton from the marine Maastrichtian Kita-ama Formation in Japan as a new taxon, Yamatosaurus izanagii gen. et sp. nov., based on unique characters in the dentition. Our phylogenetic analysis demonstr
Externí odkaz:
https://doaj.org/article/8daf136e8c504557bea8884e1ef4e525
Autor:
Shinobu, Ishigaki, Akio, Takahashi, Mototaka, Saneyoshi, Kentaro, Chiba, Ryuji, Takasaki, Buuvei, Mainbayar, Khishigjav, Tsogtbaatar
Publikováno v:
岡山理科大学古生物学・年代学研究センター事業報告. 3:26-29
Autor:
Kazuki, Ito, Tetsuya, Kinugasa, Yu, Okuda, Kentaro, Chiba, Sayaka, Hida, Ryuji, Takasaki, Ryota, Hayashi, Koji, Yoshida, Koichi, Osuka
Publikováno v:
岡山理科大学古生物学・年代学研究センター事業報告. 3:61-64
Autor:
Ryuji Takasaki, Yoshitsugu Kobayashi
Publikováno v:
Acta Herpetologica, Vol 15, Iss 2 (2020)
Two groups of extant Archosauria, Crocodylia and Neornithes, have two-chambered stomachs and store gastroliths inside their “gizzards”. Morphological similarities of the “gizzards” lead some previous studies to assume that the presence of thi
Externí odkaz:
https://doaj.org/article/770d4b1730414562a4935d8087470048
Autor:
Shinobu, Ishigaki, Khishigjav, Tsogtbaatar, Buuvei, Mainbayar, Akio, Takahashi, Batsaikhan, Buyantegsh, Purevsuren, Byambaa, Bayasgaa, Ganzorig, Battulga, Bilguunbold, Enkhbat, Ochirjantsan, Tadahiro, Hatakeyama, Mototaka, Saneyoshi, Ryuji, Takasaki, Kentaro , Chiba
Publikováno v:
フロンティア理工学研究所研究報告 = The bulletin of Research Institute of Frontier Science and Technology. 4:29-32
Autor:
Ryuji Takasaki, Yoshitsugu Kobayashi
Publikováno v:
PeerJ, Vol 8, p e10277 (2020)
The gizzard is the only gastrointestinal organ for mechanical processing in birds. Many birds use grit in the gizzard to enhance mechanical processing efficiency. We conducted an experiment to test the factors that affect chicken grit use in 68 male
Externí odkaz:
https://doaj.org/article/a94117ae47f54191846c5d9054f19c0b
Publikováno v:
PLoS ONE, Vol 15, Iss 5, p e0232410 (2020)
Hadrosaurid fossils from the Liscomb Bonebed (Prince Creek Formation, North Slope, Alaska) were the first dinosaur bones discovered from the Arctic. While the Prince Creek Formation hadrosaurids were long identified as Edmontosaurus, a member of the
Externí odkaz:
https://doaj.org/article/5495938a494a480190f8424dd59a3c20
Autor:
Anthony R Fiorillo, Yoshitsugu Kobayashi, Paul J McCarthy, Tomonori Tanaka, Ronald S Tykoski, Yuong-Nam Lee, Ryuji Takasaki, Junki Yoshida
Publikováno v:
PLoS ONE, Vol 14, Iss 10, p e0223471 (2019)
While there are now numerous records of dinosaurs from Cretaceous rocks around the state of Alaska, very few fossil records of terrestrial vertebrates are known from the Mesozoic rocks of the southwestern part of the state. Here we report the new dis
Externí odkaz:
https://doaj.org/article/1bc59a7be32c464a971c022e5002041f