Matches in SemOpenAlex for { <https://semopenalex.org/work/W2152201720> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2152201720 abstract "The development of the trilobite pygidium involves both an articulation process at the frontal part and the formation of new segments at the rear end, and hence the development of the meraspid pygidium entails complicated morphological changes. This study deals with the ontogeny of the Furongian (late Cambrian) ptychaspidid trilobite, Quadraticephalus elongatus (Kobayashi, 1935), from the Hwajeol Formation of the Taebaek Group, Taebaeksan Basin, Korea, with a special focus on the segmentation process during the meraspid pygidial development. Compared to the ontogeny of a ptychaspidid trilobite, Asioptychaspis subglobosa (Sun, 1924), which is assumed to be an ancestral species of Q. elongatus , the convexity of the cranidium of Q. elongatus increased in a slower rate; the yoked free cheek of Q. elongatus splits to form a ventral median suture in a later developmental stage; and, a rim-like ridge, which disappeared in the early holaspid pygidium of A. subglobosa , was maintained in the late holaspid period of Q. elongatus . These morphological changes with growth imply that paedomorphosis was involved in the evolution of Q. elongatus . Eleven stages are recognized for the meraspid pygidial development, which began with an accumulation phase during which the number of segments increased from three to seven, followed by an equilibrium phase with seven segments, and ended up with a depletion phase during which the number of segments within the pygidium decreased to four. During the depletion phase, the pygidial length did not increase or even slightly decreased. The onset of the epimorphic phase, in which the total number of trunk segments does not increase anymore, precedes the onset of the holaspid period, demonstrating that the developmental mode of Q. elongatus is protomeric." @default.
- W2152201720 created "2016-06-24" @default.
- W2152201720 creator A5007286615 @default.
- W2152201720 creator A5007429227 @default.
- W2152201720 creator A5052773902 @default.
- W2152201720 date "2013-05-01" @default.
- W2152201720 modified "2023-10-12" @default.
- W2152201720 title "Ontogeny of the Ptychaspidid TrilobiteQuadraticephalus elongatusKobayashi, 1935 from the Furongian (Late Cambrian) Hwajeol Formation, Korea" @default.
- W2152201720 cites W1961034651 @default.
- W2152201720 cites W1968027242 @default.
- W2152201720 cites W1969420219 @default.
- W2152201720 cites W1982168560 @default.
- W2152201720 cites W1997462572 @default.
- W2152201720 cites W2017486253 @default.
- W2152201720 cites W2043955465 @default.
- W2152201720 cites W2078740805 @default.
- W2152201720 cites W2086357550 @default.
- W2152201720 cites W2130670186 @default.
- W2152201720 cites W2146682177 @default.
- W2152201720 cites W2183528234 @default.
- W2152201720 cites W2314596868 @default.
- W2152201720 cites W2335586755 @default.
- W2152201720 cites W2422608367 @default.
- W2152201720 cites W2925019467 @default.
- W2152201720 cites W4251128219 @default.
- W2152201720 doi "https://doi.org/10.1666/12-102.1" @default.
- W2152201720 hasPublicationYear "2013" @default.
- W2152201720 type Work @default.
- W2152201720 sameAs 2152201720 @default.
- W2152201720 citedByCount "8" @default.
- W2152201720 countsByYear W21522017202016 @default.
- W2152201720 countsByYear W21522017202017 @default.
- W2152201720 countsByYear W21522017202018 @default.
- W2152201720 crossrefType "journal-article" @default.
- W2152201720 hasAuthorship W2152201720A5007286615 @default.
- W2152201720 hasAuthorship W2152201720A5007429227 @default.
- W2152201720 hasAuthorship W2152201720A5052773902 @default.
- W2152201720 hasConcept C105702510 @default.
- W2152201720 hasConcept C151730666 @default.
- W2152201720 hasConcept C2780915717 @default.
- W2152201720 hasConcept C37291498 @default.
- W2152201720 hasConcept C54355233 @default.
- W2152201720 hasConcept C86803240 @default.
- W2152201720 hasConcept C91442348 @default.
- W2152201720 hasConceptScore W2152201720C105702510 @default.
- W2152201720 hasConceptScore W2152201720C151730666 @default.
- W2152201720 hasConceptScore W2152201720C2780915717 @default.
- W2152201720 hasConceptScore W2152201720C37291498 @default.
- W2152201720 hasConceptScore W2152201720C54355233 @default.
- W2152201720 hasConceptScore W2152201720C86803240 @default.
- W2152201720 hasConceptScore W2152201720C91442348 @default.
- W2152201720 hasLocation W21522017201 @default.
- W2152201720 hasOpenAccess W2152201720 @default.
- W2152201720 hasPrimaryLocation W21522017201 @default.
- W2152201720 hasRelatedWork W1585862099 @default.
- W2152201720 hasRelatedWork W1607531035 @default.
- W2152201720 hasRelatedWork W1987970711 @default.
- W2152201720 hasRelatedWork W2024988750 @default.
- W2152201720 hasRelatedWork W2029470431 @default.
- W2152201720 hasRelatedWork W2043955465 @default.
- W2152201720 hasRelatedWork W2056688824 @default.
- W2152201720 hasRelatedWork W2061660601 @default.
- W2152201720 hasRelatedWork W2086357550 @default.
- W2152201720 hasRelatedWork W2100078946 @default.
- W2152201720 hasRelatedWork W2117711055 @default.
- W2152201720 hasRelatedWork W2146682177 @default.
- W2152201720 hasRelatedWork W2147149620 @default.
- W2152201720 hasRelatedWork W2158644547 @default.
- W2152201720 hasRelatedWork W2174568077 @default.
- W2152201720 hasRelatedWork W2370535565 @default.
- W2152201720 hasRelatedWork W2556145057 @default.
- W2152201720 hasRelatedWork W2941392898 @default.
- W2152201720 hasRelatedWork W3129131841 @default.
- W2152201720 hasRelatedWork W3135948137 @default.
- W2152201720 isParatext "false" @default.
- W2152201720 isRetracted "false" @default.
- W2152201720 magId "2152201720" @default.
- W2152201720 workType "article" @default.