A mid-Cretaceous (Albian–Cenomanian) shell-rubble bryozoan fauna from the Goshoura Group, Kyushu, Japan

  title={A mid-Cretaceous (Albian–Cenomanian) shell-rubble bryozoan fauna from the Goshoura Group, Kyushu, Japan},
  author={Matthew H Dick and Toshifumi Komatsu and Reishi Takashima and Andrew N. Ostrovsky},
  journal={Journal of Systematic Palaeontology},
  pages={401 - 425}
Early Cretaceous bryozoans are key to understanding the evolutionary radiation of order Cheilostomata, the dominant modern group. Prior to the current study, there were few records of any Cretaceous cheilostomes from eastern Asia, and no pre-Cenomanian records. We found bryozoan fossils to be common in brackish-water to marine deposits representing estuary–tidal-flat and shoreface–inner-shelf habitats in the late Albian–early Cenomanian Goshoura Group, Goshoura Island, Kyushu, Japan. Bryozoans… 
Cheilostome Bryozoa from the Upper Cretaceous Himenoura Group, Kyushu, Japan
Abstract. Cheilostome bryozoans (Phylum Bryozoa; Order Cheilostomata) originated in the latest Jurassic but remained at low diversity until the late Albian–early Cenomanian, when they began an
Early Cretaceous gymnolaemate bryozoans from the early to middle Albian of the Glen Rose and Walnut formations of Texas, USA
These formations therefore yield the oldest known bryozoan assemblage dominated in terms of biomass by cheilostomes, and the genus concept of Charixa is discussed and amended.
A new early Cheilostome bryozoan from the Aptian (Lower Cretaceous) of Valencia, Spain.
Cheilostome bryozoans are uncommon in Lower Cretaceous rocks. Therefore, the discovery of a specimen from the Upper Aptian of Fuente la Higuera, Valencia, warrants attention. Charixa sagnieri sp.
Early Cretaceous cyclostome bryozoans from the early to middle Albian of the Glen Rose and Walnut formations of Texas, USA
Abstract The Glen Rose and Walnut formations of southcentral and northcentral Texas comprise shallow-water carbonates deposited during the late Aptian to middle Albian on a carbonate platform. The
Apprehending novel biodiversity—fifteen new genera of Zealandian Bryozoa
  • D. Gordon
  • Geology, Biology
    Journal of the Marine Biological Association of the United Kingdom
  • 2014
Fifteen new genera of cheilostome Bryozoa are described from the New Zealand biogeographical region, centred on Zealandia, from shallow coastal waters to abyssal depths, with plesiomorphies that are novel among Recent Calloporidae but which are found in some Cretaceous calloporids or cribrilinids.
Eocene isopods of Pesciara di Bolca (Italy) revisited
Fossils of the cymothoidan Palaega acuticauda Secretan and the sphaeromatidean Heterosphaeroma veronensis Secretan are reinvestigated and it is argued that both species do not differ substantially in dorsal morphology from recent genera, and are placed among more likely congeners.
The earliest calcified opercula of bryozoans of the order Cheilostomata
The earliest known calcified opercula are described in cryptocystidean anascan cheilostome bryozoans: Onychocella inelegans (Lonsdale, 1850) from the Lower-Upper boundary beds of the Campanian of the


Palaeoecology of the mid‐Cretaceous siphonate bivalve genus Goshoraia (Mollusca, Veneridae) from Japan
Abstract:  The mid‐Cretaceous bivalve Goshoraia Tamura, 1977, endemic to Japan, is an early example of shallow‐marine siphonate bivalves of the family Veneridae Rafinesque, 1815. Three species,
Stratigraphy and fossil bivalve assemblages of the mid-Cretaceous Goshoura Group, southwest Japan
ABSTRACT The mid-Cretaceous Goshoura Group, non-marine to shallow marine fossiliferous clastic deposits, is typically exposed on Goshoura Island, Amakusa, western Kyushu, Japan. Based on precise
Pre-Cenomanian Cheilostome Bryozoa: Current State of Knowledge
The presence of Late Albian neocheilostomes in both Europe and North America implies that their brief larval life was not an obstacle to achieving a wide distribution and suggests a role for rafting in their dispersal.
Cretaceous Bryozoa from the Campanian and Maastrichtian of the Atlantic and Gulf Coastal Plains, United States
The Late Cretaceous bryozoan fauna of North America has been severely neglected in the past. In this preliminary study based on museum material and a limited amount of fieldwork, we describe a total
Charixa Lang and Spinicharixa gen. nov., cheilostome bryozoans from the Lower Cretaceous
Seven species of non-ovicellate anascans with pluriserial to loosely multiserial colonies are described from the Barremian-Albian of Europe and Africa. The genus Charixa Lang is revised and the
The cladistic trees strongly suggest that most or all of the species diverged before the end of the Albian, but stratigraphic resolution is insufficient to test this hypothesis, and the series of morphological changes differentiating avicularia from ordinary autozooids in these species is highly significant statistically, and may be a pattern later repeated in other cheilostomes.
Diversity and taxonomy of intertidal Bryozoa (Cheilostomata) at Akkeshi Bay, Hokkaido, Japan
The overall species richness of intertidal cheilostomes was two‐thirds that documented intertidally in a comparable study at Kodiak, Alaska, a locality 15° higher in latitude, and the lower richness at Akkeshi to differences in the nearshore marine environment between the two localities is attributed.