Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике › Рецензирование
Early stages of the ovicell development in the calloporid Wilbertopora (Bryozoa: Cheilostomata) from the Upper Cretaceous of the USA. / Ostrovsky, A.N.; Taylor, P.D.
Bryozoan Studies 2004. ред. / Hugo Moyano; Juan Cancino; Patrick Wyse Jackson. Taylor & Francis, 2005. стр. 223-230.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике › Рецензирование
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TY - CHAP
T1 - Early stages of the ovicell development in the calloporid Wilbertopora (Bryozoa: Cheilostomata) from the Upper Cretaceous of the USA
AU - Ostrovsky, A.N.
AU - Taylor, P.D.
PY - 2005
Y1 - 2005
N2 - The calloporid Wilbertopora Cheetham, 1954 is the oldest known cheilostome with brood chambers (ovicells). The pattern of initial ovicell formation, involving a single ooecial rudiment, is more reminiscent of ovicell development in some Recent cribrimorphs and other more advanced cheilostomes than it is of Recent calloporids that have a double rudiment. The distrubution of early ovicell developmental types among cheilostomes is discussed. During later ovicell growth in Wilbertopora two lateral lobes fuse to form the hemispherical hyperstomial ovicell. This fusion process demonstrates how such ovicells could have originated from a more primitive bispinose precursor.
AB - The calloporid Wilbertopora Cheetham, 1954 is the oldest known cheilostome with brood chambers (ovicells). The pattern of initial ovicell formation, involving a single ooecial rudiment, is more reminiscent of ovicell development in some Recent cribrimorphs and other more advanced cheilostomes than it is of Recent calloporids that have a double rudiment. The distrubution of early ovicell developmental types among cheilostomes is discussed. During later ovicell growth in Wilbertopora two lateral lobes fuse to form the hemispherical hyperstomial ovicell. This fusion process demonstrates how such ovicells could have originated from a more primitive bispinose precursor.
M3 - Article in an anthology
SN - 9780415372930
SP - 223
EP - 230
BT - Bryozoan Studies 2004
A2 - Moyano, Hugo
A2 - Cancino, Juan
A2 - Wyse Jackson, Patrick
PB - Taylor & Francis
ER -
ID: 4409140