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1,069 results for “Bryozoan”
FIGURE 15 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 15. Acupipora elliptica (Rogers, 1900) (A–D): A – branch fragment with autozooecial apertures, nodes and nanozooecium (arrow) (XCI 113). B, C – deep tangential section showing autozooecial chambers with hemisepta (XCI 70); D – tangential section showing autozooecial apertures (XCI 70). Polypora triangularis Rogers, 1900 (E–H): E, F – tangential section showing autozooecial apertures and chambers (XCI 50); G, H – tangential section showing autozooecial apertures and reproductive heterozooecia (arrows) (XCI 26).
FIGURE 17. Polypora aff. hexagona Moore, 1929 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 17. Polypora aff. hexagona Moore, 1929 (A–E): tangential section showing autozooecial apertures and chambers, nodes, microstyles, and reproductive heterozooecia (arrows) (XCI 55). Septopora blanda Moore, 1929 (F– I): F – tangential section showing autozooecial chambers and cyclozooecia (XCI 54); G – colony fragment with cyclozooecia on the reverse side (arrows) (XCI 119). H, I – colony fragment with autozooecial apertures, keel nodes, and cyclozooecia (arrows) (XCI 120).
FIGURE 19. Penniretepora oculata Moore, 1929 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 19. Penniretepora oculata Moore, 1929 (A–E): A, B – branch fragment with autozooecial apertures divided by keel with nodes (XCI 124); C, D – tangential section showing autozooecial chambers (XCI 96); E – tangential section showing autozooecial apertures (arrow: nanozooecium) (XCI 96).
FIGURE 13 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 13. Cavernella praecavifera (Schulga-Nesterenko, 1951) (A–F): A–B – colony fragment with broken autozooecial chambers (XCI 126); C – autozooecial aperture with preserved stellate structure (XCI 127); D – colony fragment showing a weathered cavernozooecium (arrow) (XCI 128); E, F – tangential section showing autozooecial apertures and chambers (XCI 69).
FIGURE 2 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 2. Stratigraphy and sampled sections of the Finis Shale at TXV-200. A – stratigraphic position of the Finis Shale Member modified after Yang and Kominz, 2003 (fig. 2). B – measured sections, not from the base of the Finis Shale; base represented by accessible part of the Finis at individual section (compare with Figure 1); profile C is marked by exclusively yellowish shale, profile B by grey shale that only mixes with yellowish shale in the uppermost part; the latter section is capped by the Jacksboro Limestone. Ss – sandstone.
Fig. 5 in Trepostome bryozoans encrusting Silurian gastropods: A taphonomic window and its implications for biodiversity
Fig. 5. Thin sections of trepostome bryozoan Homotrypa cochlea sp. nov. from Upper Leintwardine Formation, Ludfordian, upper Ludlow, Silurian; Delbury Quarry, Shropshire, UK. A. Holotype, NMW 2019.21G.2.3, ramose colony form (A1), thick mesozooecia walls connected by diaphragms, continue cystose shape of earlier growth (A2). B. NMW 2019.21G.2.4, autozooecia rounded in cross-section, some irregularly shaped.
Fig. 4 in Trepostome bryozoans encrusting Silurian gastropods: A taphonomic window and its implications for biodiversity
Fig. 4. Thin section of trepostome bryozoan Homotrypa cochlea sp. nov. from Upper Leintwardine Formation, Ludfordian, upper Ludlow; Delbury Quarry, Shropshire, UK. Holotype, NMW 2019.21G.2.3, bryozoan colony encrusting gastropod shell and developing ramose form at shell aperture.
Fig. 2 in Trepostome bryozoans encrusting Silurian gastropods: A taphonomic window and its implications for biodiversity
Fig. 2. Trepostome bryozoan Homotrypa cochlea sp. nov. from Upper Leintwardine Formation; Ludfordian, upper Ludlow, Silurian; Delbury Quarry, Shropshire, UK. A. NMW 2019.21G.7.1, bryozoan encrusting the surface of a gastropod shell. B. NMW 2019.21G.33, bryozoan encrusting the surface of a gastropod shell but not growing across aperture.
Fig. 1 in Trepostome bryozoans encrusting Silurian gastropods: A taphonomic window and its implications for biodiversity
Fig. 1. Map showing the location and geological setting (asterisk) of Delbury Quarry in Shropshire, UK (amended from https://digimap.edina.ac.uk/roam/ map/geology and https://digimap.edina.ac.uk/roam/map/os; accessed 05/08/21).
Fig. 1 in Three newly recorded species of Korean fouling bryozoans
Fig. 1. Thalamoporella californica (Levinsen, 1909). A, Colony; B, Dichotomous branch; C, Adoral tubercles of orifice and zooidal arrangement; D, Avicularium; E, C-shaped calipers; F, Ovicells. Scale bars: B = 10 mm; C, F = 0.5 mm; D = 0.2 mm; E = 0.05 mm.
Fig. 3. Tricellaria inopinata d in Three newly recorded species of Korean fouling bryozoans
Fig. 3. Tricellaria inopinata d'Hondt and Occhipinti Ambrogi, 1985. A, Colony; B, Zooidal arrangement, spines and scutums; C, Axial zooids at bifurcations; D, Ovicells, divided disto-external proximal spines and lateral avicularia. Scale bars: A = 10 mm; B = 0.3 mm; C = 0.05 mm, D = 0.2 mm.
Fig. 2 in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 2. Hiantopora intermedia (Kirkpatrick, 1890). A. zooids. B. orifice and avicularia. C. ovicell. D. basal surface. Scale bars: 100 μm (AD).
Fig. 1. A in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 1. A map showing the collection sites in Seogwipo waters. 1. Seongsanpo. 2. Supseom. 3. Geomeunyeo (underwater cave). 4. Munseom Island, Hangaechang in Munseom Island and Saeggi Island in Munseom Island. 5. Seogwipo port. 6. Beomseom Island and Saeggi Island in Beomseom Island. 7. Hwasun port. 8. Marado Island. 9. Moseulpo.
Fig. 3 in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 3. Gregarinidra serrata (MacGillivray, 1869). A. zooids. B. avicularium. C. shape of spines. D. lateral wall. Scale bars: 100 μm (AD).
Fig. 3 in Three Korean Cheilostomatous Bryozoans from Gageodo Island - new additions to the Korean fauna
Fig. 3. Celleporina costazii (Audouin, 1826). A, zooidal arrangement; B, orifice and avicularia; C, ovicell; D, interzooidal avicularium. Scale bars: A. 500 μm. B. 300 μm. C, D. 200 μm.
Fig. 1 in Three Korean Cheilostomatous Bryozoans from Gageodo Island - new additions to the Korean fauna
Fig. 1. Chorizopora brongniartii (Audouin, 1826). A, zooidal arrangement; B, basal view of zooids; C, orifice, avicularia of ovicell; D, orifice and avicularia. Scale bars: A, B. 500 μm. C, D. 200 μm.
Fig. 2 in Three Korean Cheilostomatous Bryozoans from Gageodo Island - new additions to the Korean fauna
Fig. 2. Microporella marsupiata (Busk, 1860). A, zooidal arrangement; B, ovicell; C, orifice, spines and avicularia; D, ascopore. Scale bars: A. 1 mm. B. 100 μm. C. 200 μm. D. 50 μm.
Fig. 5 in Alcyonidium kuklinskii sp. nov., a new species of Antarctic ctenostome bryozoan with a key to all Antarctic species of the genus
Fig. 5 Maximum likelihood phylogenetic tree of Alcyonidium based on 646 unambiguously aligned nucleotide sites of the COI gene. Values on nodes represent posterior probabilities for BI (based on last 75% of trees) and bootstrap support (1000 replicates), respectively. Support values <50% are not shown. The scale bar represents one substitutional change per 100 nucleotide positions. * Sequence was generated during this study
Fig. 3 in Alcyonidium kuklinskii sp. nov., a new species of Antarctic ctenostome bryozoan with a key to all Antarctic species of the genus
Fig. 3 Histological sections of Alcyonidium kuklinskii sp. nov. a Multiple internal zooids filling the internal branch. Note only close to the colony wall there are functional polypides. b Apertural area showing deep vestibular wall and medium- sized collar at its bottom. Parts of the remaining polypide are also visible. c Cross- sectioned lophophore showing 21 tentacles. d Detail of the thick, multi-layered colony wall. Abbre: az – autozooid, c – collar, cae – caecum, cow – colony wall, db – duplicature band, izw – interzooidal wall, ply – polypide, ts – tentacle sheath, v – vestibulum, vw – vestibular wall
Fig. 2 in Alcyonidium kuklinskii sp. nov., a new species of Antarctic ctenostome bryozoan with a key to all Antarctic species of the genus
Fig. 2 Stereomicroscopic images of Alcyonidium kuklinskii sp. nov. Images a–c, e–f from holotype MNA-02733, d from paratype MNA-02904, a and b Colony pieces of the holotype, c Close-up showing thinner and thicker branches of the colony. d and e Zooidal shapes and few small kenozooids in between. f More cleared colony piece showing internal, functional polypides. Abbre: ap – aperture, az – autozooid, kz – kenozooid, ply - polypide
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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