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14 results for “Pentapora”
Fig. 25. A–E. Pentapora fascialis. A in Northern Adriatic Bryozoa From The Vicinity Of Rovinj, Croatia
Fig. 25. A–E. Pentapora fascialis. A. General aspect (AMNH 945; 0.5 mm). B. Autozooid (AMNH 946; 0.1 mm). C. Maternal zooid with partially calcified ovicell and small suboral avicularium (AMNH 945; 0.1 mm). D. Autozooid with large suboral avicularium (AMNH 947; 0.1 mm). E. straight colony margin generated by kenozooids (AMNH 945; 0.5 mm). F–H. Schizomavella asymetrica (AMNH 948). F. General aspect (0.5 mm). G. Autozooid (right) and (center) maternal zooid with ovicell (0.1 mm). H. Autozooidal orifice (0.05 mm).
Figure 11 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 11. Pentapora clipeus sp. nov., scanning electron micrographs of uncoated specimens from the Middle Pliocene of Monte Padova, Castell'Arquato, Piacenza, Emilia, Italy, imaged using back-scattered electrons. A–D, holotype, NHM BZ 5662. A, colony fragment with zooids bearing giant avicularia. B, partly overgrown ovicell and two giant avicularia. C, giant avicularium; note the lack of a calcified crossbar. D, giant avicularium with closure plate containing two pores. E, paratype, NHM BZ 5663. E, orifice with left lappet preserved and giant avicularium with closure plate. F, primary orifice, normal suboral avicularium, and median septum and circular muscle impression visible on the basal wall of the broken zooid at the top left. Scale bars: A = 280 Mm; B = 100 Mm; D = 60 Mm; E = 50 Mm; F = 100 Mm.
Figure 12 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 12. Raymondcia rigida (Lorenz, 1886), holotype of Pentapora boreale Kuklinski & Hayward (2004), Kingsfjorden, Spitsbergen, NHM 2003.3.10.1; scanning electron micrographs of uncoated specimen imaged using back-scattered electrons. A, zooids and growing edge. B, zooids with ovicells and suboral avicularia. C, primary orifice, nonporous ovicell, suboral avicularium and lyrula. D, primary orifice, suboral avicularium and ovicell overgrown by granular calcification. Scale bars: A = 600 Mm; B = 200 Mm; C = 80 Mm; D = 100 Mm.
Figure 13 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 13. Cladogram showing the inferred phylogenetic relationships between species of Pentapora based on an analysis rooted on Pentapora ottomulleriana. The numbers in the squares are bootstrap support values for clades along the spine of the tree. Smaller figures are character numbers (see the Appendix), with state changes given in brackets. Extinct species are indicated with asterisks. Note that the Atlantic species form a clade crownward of the Mediterranean species in this analysis.
Figure 9 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 9. Pentapora lacryma sp. nov., scanning electron micrographs of uncoated specimens from the Pliocene Coralline Crag Formation of Suffolk, England, imaged using back-scattered electrons. A, ovicellate autozooids and giant avicularia partly obscured by diagenetic cement, Aldeburgh Member, Aldeburgh Hall, NHM BZ 5677. B, C, E, F, Aldeburgh Member, Crag Pit Nursery, Aldeburgh, NHM BZ 5648. B, autozooids from encrusting base. C, growing edge of encrusting base showing ovicellate zooids and a few giant avicularia. E, ovicellate zooids with closure plates and a giant avicularium (left). F, ovicell (pores obscured by diagenetic cement) and giant avicularium. D, holotype with ovicellate zooids showing evenly porous ooecia, Broom Hill, NHM D50716. Scale bars: A = 55 Mm; B = 240 Mm; C = 520 Mm; D = 230 Mm; E = 150 Mm; F = 130 Mm.
Figure 8 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 8. Pentapora pertusa (Milne Edwards, 1836), scanning electron micrographs of uncoated specimens from the Pliocene Coralline Crag Formation of Suffolk, England, imaged using back-scattered electrons. A, autozooids and several giant avicularia, Broom Pit, NHM D50182. B, ovicellate zooids and giant suboral avicularium with details obscured by diagenetic cement, Aldeburgh Member, Aldeburgh Hall, NHM BZ 5643. C–F, NHM BZ 5676,?Ramsholt Member, Broom Pit. C, patch of colony dominated by ovicellate zooids. D, ovicells and normal suboral avicularia. E, orifice and normal suboral avicularium. F, giant triangular suboral avicularium. Scale bars: A = 280 Mm; B = 190 Mm; C = 520 Mm; D = 220 Mm; E = 60 Mm; F = 100 Mm.
Figure 10 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 10.?Pentapora lacryma sp. nov., scanning electron micrographs of uncoated specimens from the Pliocene Red Crag Formation of Walton-on-Naze, Essex, England, imaged using back-scattered electrons. A, B, NHM D34979(a). A, autozooids and giant avicularia. B, broken ovicells and a giant avicularium (left). C, D, NHM D34979(b). C, autozooids with and without the outer aragonitic layer of the frontal shield. D, autozooid preserving the aragonite layer, sometimes merging across zooidal boundaries (arrow). Scale bars: A = 430 Mm; B = 210 Mm; C = 170 Mm; D = 160 Mm.
Figure 6 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 6. Pentapora fascialis (Pallas, 1766), scanning electron micrographs of uncoated fossil specimens imaged using backscattered electrons. A–C, Lower Pleistocene, Arda stream, Castell'Arquato, Piacenza, Emilia, Italy, NHM BZ 5669. A, colony fragment showing zooids with normal and giant avicularia, and ovicells overgrown by secondary calcification. B, giant avicularium in autozooid having primary orifice almost obscured by lappets forming a bridge. C, ovicell. D–F, Pliocene, Emilian, Gillina, Calabria, Italy. D, E, NHM BZ 5664. D, autozooids, showing normal avicularia and a giant avicularium, and a broken ovicell. E, ovicell. F, NHM BZ 5667. bases of oral spines (arrows). Scale bars: A = 300 Mm; B = 150 Mm; C, E = 120 Mm; D = 200 Mm; F = 110 Mm.
Figure 7 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 7. Pentapora ottomulleriana (Moll, 1803), Monterosso al Mare, Liguria, Italy, NHM 2007.9.14.16; scanning electron micrographs of uncoated specimens imaged using back-scattered electrons. A, autozooids. B, ovicell. C, young zooids at the growing edge. D, autozooids and an avicularium. E, primary orifice. F, avicularium. Scale bars: A = 600 Mm; B = 100 Mm; C = 350 Mm; D = 200 Mm; E = 75 Mm; F = 130 Mm.
Figure 5 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 5. Pentapora fascialis (Pallas, 1766), scanning electron micrographs of uncoated recent specimens imaged using back-scattered electrons. A, B, Tino Island, Italy, NHM 2007.9.14.14. A, group of autozooids, some with ovicells. B, autozooidal orifice and giant suboral avicularium. C, D, Oran, Algeria, NHM 1963.9.4.8. C, edge of branch showing autozooids (most with normal suboral avicularia) and marginal kenozooids. D, orifice and normal suboral avicularium. E, F, reputedly from Port Western, South Australia, NHM 34.2.20.15. E, inferred predator boreholes (arrowed) in frontal shields. F, giant suboral avicularia. Scale bars: A = 280 Mm; B = 100 Mm; C = 470 Mm; D = 60 Mm; E = 300 Mm; F = 100 Mm.
Figure 4 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 4. Pentapora fascialis (Pallas, 1766), Tino Island, Italy, NHM 2007.9.14.14; scanning electron micrographs of coated specimens imaged using secondary electrons. A, autozooids. B, growing edge. C, primary orifice. D, oblique profile of normal suboral avicularium. Scale bars: A = 0.5 mm; B = 0.4 mm; C = 100 Mm; D = 0.5 mm.
Figure 3 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 3. Pentapora foliacea (Ellis & Solander, 1786); scanning electron micrographs of uncoated specimens imaged using back-scattered electrons. A–C, NHM 2009.1.28.2, Littlehampton, Sussex, England. A, young autozooids close to growing edge. B, older autozooids. C, primary orifice of a young autozooid. D, primary orifice, Boreray, St Kilda, Scotland, NHM 1985.1.10.54. E–F, Persier Reef, Plymouth, Devon, England, NHM 2007.9.14.2. E, young ovicell. F, older ovicell embedded in secondary calcification. Scale bars: A = 290 Mm; B = 180 Mm; C, D = 60 Mm; E, F = 100 Mm.
Figure 2 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 2. Pentapora foliacea (Ellis & Solander, 1786), Skomer Nature Reserve, Watwick, Dyfed, Wales, NHM 2007.9.14.5; scanning electron micrographs of coated specimens imaged using secondary electrons. A, old autozooids. B, growing edge and a kenozooid (left of centre). C, primary orifice. D, ovicellate zooids. E, autozooids, many with small suboral avicularia. F, oblique profile of suboral avicularium. Scale bars: A, B = 0.4 mm; C = 150 Mm; D, E = 0.4 mm; F = 40 Mm.
Figure 1 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)
Figure 1. Large colonies of the cheilostome bryozoan Pentapora. A, eschariform colony of Pentapora foliacea (Ellis & Solander, 1786), British waters, NHM 2009.1.28.3. B, adeoniform colony of Pentapora fascialis (Pallas, 1766), NHM 2001.1.25.4, near Marseille. Scale bars: A = 4 cm; B = 2 cm.
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