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FIGURE 1 in New species and new records of bryozoans from shallow waters of Madeira Island
FIGURE 1. Location of the sampling site Ilhéu Gorgulho, Funchal, south coast of Madeira island.
FIGURE 11. Aetea anguina. FIGURE 12 in New species and new records of bryozoans from shallow waters of Madeira Island
FIGURE 11. Aetea anguina. FIGURE 12. Reptadeonella violacea.
FIGURE 1 in Systematics of interstitial encrusting bryozoans from southeastern Brazil
FIGURE 1. Location of sampling stations (BIOTA/FAPESP) and Itassucê (▲).
Fig. 1 in Bryozoan statoblasts from lake sediments in Madagascar, including two new species
Fig. 1. Map (left) showing the location of Lake Sofia within Madagascar, in relation to the capital city of Antananarivo, and (right) showing the location of the SOF3 core within Lake Sofia.
Fig. 2. A in Bryozoan statoblasts from lake sediments in Madagascar, including two new species
Fig. 2. A stratigraphic graph displaying the total number of plumatellid bryozoan statoblast valves found in the SOF3 wide diameter core from Lake Sofia, Madagascar. Each bar represents the number of valves found in 30 cm3 of sediment.
FIG. 1 in The distribution, origins and taxonomy of Tricellaria inopinata d'Hondt and Occhipinti Ambrogi, 1985, an invasive bryozoan new to the Atlantic
FIG. 1. (b) Known distribution of T. inopinata in southern England (as of July 1999).
TABLE 1 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species
<p><b>TABLE 1.</b> List of sampling stations from the INDEmaRES- alboRaN project 2011 examined in this study.</p><table><tbody><tr><th><b>Station</b></th><th><b>Date</b></th><th><b>Position</b></th><th><b>Substrate</b></th><th><b>Depth (m)</b></th></tr></tbody><tbody><tr><th>BV12</th><td>23/09/2011</td><td>35°52.22’N – 03°05.21’W, 35°52.17’N – 03°05.38’W</td><td>Gravel</td><td>112–120</td></tr><tr><th>BV13</th><td>23/09/2011</td><td>35°52.38’N – 03°05.18’W, 35°52.82’N – 03°04.59’W</td><td>Gravel</td><td>95–99</td></tr><tr><th>BV14</th><td>23/09/2011</td><td>35°52.72’N – 03°04.67’W, 35°52.34’N – 03°05.26’W</td><td>Gravel</td><td>96–100</td></tr><tr><th>BV15</th><td>23/09/2011</td><td>35°52.67’N – 03°04.66’W, 35°52.90’N – 03°04.92’W</td><td>Gravel</td><td>96</td></tr></tbody></table>
FIG. 4 in Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean
FIG. 4. — Schematic sedimentary log of Kapariana composite section with sample location and semi-quantitative abundances of bryozoan species.
Paleozoic origins of cheilostome bryozoans and their parental care inferred by a new genome-skimmed phylogeny
<div class="page"> <div class="layoutArea"> <div class="column"> <p class="MsoNormal">Phylogenetic relationships and the timing of evolutionary events are essential for understanding evolution on longer time scales. Cheilostome bryozoans are a group of ubiquitous, species-rich, marine colonial organisms with an excellent fossil record but lack phylogenetic relationships inferred from molecular data. We present genome-skimmed data for 395 cheilostomes and combine these with 315 published sequences to infer relationships and the timing of key events among c. 500 cheilostome species. We find that named cheilostome genera and species are phylogenetically coherent, rendering fossil or contemporary specimens readily delimited using only skeletal morphology. Our phylogeny shows that parental care in the form of brooding evolved several times independently but was never lost in cheilostomes. Our fossil calibration, robust to varied assumptions, indicates that the cheilostome lineage and parental care therein could have Paleozoic origins, much older than the first known fossil record of cheilostomes in the Late Jurassic.</p> </div> </div> </div>
FIG. 6. — A in A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera
FIG. 6. — A, Dianulites rocklandensis Wilson, 1921, tangential section showing autozooecial apertures, CEGH-UNC 27503 a; B-D, Monticulipora aff. mammulata d'Orbigny, 1850, CEGH-UNC 27516 d; B, C, tangential thin section showing autozooecial apertures; D, longitudinal thin section showing autozooecial chambers with cystiphragms; E-G. Orbignyella multitabulata Coryell, 1921; E, F, longitudinal thin section showing autozooecia with diaphragms, CEGH-UNC 27505 a; G, tangential thin section showing autozooecial apertures, CEGH-UNC 27505 b. Scale bars: A, C, 0.2 mm; B, G, 0.5 mm; D, F, 1 mm; E, 2 mm.
FIGURE 1 in Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA
FIGURE 1. Geography and geology at the Finis Shale outcrop, TXV-200, spillway section northeast of Jacksboro, Texas, USA. A – location of Jacksboro (Jack County), approximately 100 km northwest of Fort Worth, Texas. B – TXV-200, the horseshoe-shaped outcrop at the spillway section at Lost Creek Lake. Greyish area in the middle of the horseshoe is a bedding plane, conulariids are usually found here; numbers 1–3 refer to the numbers in the landscape photo in Figure 1C. C – landscape photo of the spillway section toward the South, view when standing on the bedding plane; 1–3 inserted to compare positions as indicated in Figure 1B, white arrows with B and C indicate the location of the sections sampled (also compare Figure 2B). D – yellowish, weathered Finis Shale. E – greyish Finis Shale. D, E – sampling transects (compare Figures 1C and 2B) were prepared to be able to collect fresh, in situ shale. F – top of the outcrop (above sampled section B) represented by the Jacksboro Limestone.
Fig. 3 in Trepostome bryozoans encrusting Silurian gastropods: A taphonomic window and its implications for biodiversity
Fig. 3. Thin sections of trepostome bryozoan Homotrypa cochlea sp. nov. from Upper Leintwardine Formation; Ludfordian, upper Ludlow, Silurian; Delbury Quarry, Shropshire, UK. A. NMW 2019.21G.5.2, encrusting colonies comprising multiple layers caused by self-overgrowths (A1), apex of gastropod shell encrusted with bryozoan colony (A2), colony does not grow over the gastropod shell aperture (A3, A4). B. NMW 2019.21G.6.2, colony encrusting apertural side of shell thinner than on the abapertural side, arrow indicates Trypanites boring in bryozoan colony. C. NMW 2019.21G.7.3, colony can be seen inside the aperture of gastropod shell.
Fig. 6. Petraliella globulata n in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 6. Petraliella globulata n. sp. A. zooids. B. orifices. C. ovicells. D. basal surface. Scale bars: 100 μm (AD).
Fig. 7 in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 7. Mucropetraliella philippinensis (Canu and Bassler, 1929). A. zooids. B. orifice. C. ovicells. D. basal surface. Scale bars: 100 μm (AD).
Fig. 4. Canda pecten Thornely, 1907. A. zooids and avicularia. B. lateral walls. C. opesia and spines. D in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 4. Canda pecten Thornely, 1907. A. zooids and avicularia. B. lateral walls. C. opesia and spines. D. ovicells. Scale bars: 100 μm (AD).
Fig. 5. Margaretta tenuis Harmer, 1957. A. zooids. B. basis rami. C. ascopore. D in Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island
Fig. 5. Margaretta tenuis Harmer, 1957. A. zooids. B. basis rami. C. ascopore. D. transverse section of zooids. Scale bars: 100 μm (AD).
Fig. 4 in Alcyonidium kuklinskii sp. nov., a new species of Antarctic ctenostome bryozoan with a key to all Antarctic species of the genus
Fig. 4 Schematic drawing of the digestive tract anatomy of Alcyonidium kuklinskii sp. nov. Abbre: ca – cardia, cae – caecum, int – intestine, mo – mouth opening, ph/es – pharynx/ esophagus, py – pylorus, ts – tentacle sheath
Fig. 19 in Reproductive biology, embryonic development and matrotrophy in the phylactolaemate bryozoan Plumatella casmiana
Fig. 19 Ultrastructural details of opposing embryonic and embryo sac tissues in Plumatella casmiana (TEM). a Embryo showing extensions towards the embryo sac and vice versa (arrows). b Massive cytoplasmic extensions of the embryo sac mesoderm including large vesicles, partly opening to the lumen of the embryo sac (asterisk). c Filiform extensions between the cells of the embryo sac and the embryo. d Cells of the
Fig. 20 in Reproductive biology, embryonic development and matrotrophy in the phylactolaemate bryozoan Plumatella casmiana
Fig. 20 Ultrastructure of the contact area between the embryo sac and the embryo (a, c, d) and the embryo sac facing the maternal coelom (b, e) in Plumatella casmiana (TEM). a Mesodermal cell of the embryo sac (left) with a large nucleus and surrounding endoplasmatic reticulum. Vesicles release their contents (arrows) to the lumen of the embryo sac. A presumed endocytotic vesicle (wide arrow) is present in the cytoplasmic extension of the cell of the embryo. A large expelled(?) autophagosome is located in the lumen between the embryo sac and the embryonic cells, the latter with several cytoplasmic processes in contact with the former. Embryonic cells are interconnected by adherens junctions (arrowheads).
Fig. 10 in Reproductive biology, embryonic development and matrotrophy in the phylactolaemate bryozoan Plumatella casmiana
Fig. 10 Semithin sections of the embryo sac of Plumatella casmiana. The border between the ectodermal and mesodermal layer of the embryo sac wall are shown by a dashed line in b–d. a Attachment site of the embryo sac to the body wall showing continuity of its layers with those of the body wall. b Embryo sac with prominent outer mesodermal and thin inner ectodermal layer of (separated by dashed line). Contact cells of blastula-staged embryo are in connection with the ectoderm and mesoderm of the embryo sac (arrowheads). c Longitudinal section showing a cavity lined by the distal maternal ectodermal cells. Contact cells are indicated by arrowhead. d Section of a blastula and its central cavity. Contact cells are apparent in the upper part of the embryo (arrowheads). The epi- thelial lining of the embryo in this region is thicker and indicates mesoderm formation. Abbreviations: b polypide bud, e embryo, ed epidermis (ectodermal origin), esm mesoderm of embryo sac, mec maternal ectoderm cells, ov ovary
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