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12 results for “Parasmittina”
Fig. 12. Parasmittina spp. — A–C. P in Cheilostome Bryozoa from Penang and Langkawi, Malaysia
Fig. 12. Parasmittina spp. — A–C. P. raigioidea Liu et al., 2001. Pulau Betong, Penang, MSL BRY020b. A. Part of colony. B. Autozooids and avicularia. C. Orifice with lyrula and proximally directed adventitious avicularium. — D–F. Parasmittina sp. 1. Kuah jetty, Penang, MSL BRY021b. D. Colony (bottom) becoming overgrown by a colony of P. winstonae (top). E. Ovicellate zooids and proximally directed vicarious avicularia. F. Detail showing a proximally directed vicarious avicularium (upper left of centre) with a proximally directed spatulate adventitious avicularium to its lower right and a distally directed acuminate adventitious avicularium to the lower right of that. — G–I. Parasmittina sp. 2. Kampung Kuala Temoyong, Langkawi, MSL BRY012b; encrusting a large gastropod shell. G. Part of colony. H. Group of zooids. I. Autozooids and an adventitious avicularium. Scale bars: A, H = 500 μm; B, E–F = 200 μm; C, I = 100 μm; D, G = 1 mm.
Fig.3. Parasmittina collum. A in Palaeoecology of free-lying domal bryozoan colonies from the Upper Eocene of southeastern USA
Fig.3. Parasmittina collum. A.Distribution of colony diameters. B. Regression of colony height on colony diameter; Y = 0.408X + 0.632 mm. C.Distribu − tion of substratum diameters. D.Proportion of types of substrata on which colonies were established. E.Frequency distribution of encrusting organisms on lower surface. F.Frequency distribution of encrusting organisms on upper surface, with same identifying.Abbreviations: An, annelids (serpulids); Ar, Arca sp.; Bi, other bivalves; Br, bryozoan fragments; Ca, Cardium sp.; Ch, cheilostomes; Cy, cyclostomes; Ec, echinoid fragments; Fo, foraminiferans; Lu, Lunulites sp.; Mi, miscellaneous; Oy, oysters; Pe, pectinid bivalves, probably all Chlamys spp.; Po, poriferans.
Fig.2. Parasmittina collum. A in Palaeoecology of free-lying domal bryozoan colonies from the Upper Eocene of southeastern USA
Fig.2. Parasmittina collum. A.NHM BZ4963.A 1.Autozooids radiating from center of subcolony.A 2.Junction between two subcolonies, indicated by line of convergence of zooids that extends from top left to right end of scale bar. B.NHM BZ4970.B 1.Edge of colony growing across Chlamys sp.B 2.Fertile zooids, each with inflated ovicell distal to zooidal orifice. C.Underside of colony extending free beyond Chlamys substratum, with wrinkles suggestive of growth lines and larger−scale arc−shaped overlapped edges of successive subcolonies; NHM BZ4964. D.Fractured surface through colony showing moderately well defined layers of zooids that develop from a combination of local eruptive budding and lateral budding; NHM BZ4971.Scale bar in B 2 500 µm; all others 1000 µm.
Figure 6 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 6. Schizotheca aviculifera. (A) Group of zooids (MNHN-14754); (B) view in perspective, showing the position of adventitious avicularia (MNHN-14748); (C) two ovicellate zooids, one of them with three spines (right) (MNHN-14748); (D) two orifices, showing poorly developed proximal teeth, and condyles with wavy distal edge (MNHN-14754); (E) orifice with well-developed proximal teeth (MNHN-14748); (F) a vicarious avicularium, showing Y-shaped foramen (MNHN-14754).
Figure 7 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 7. Schizotheca aviculifera. (A–C) Casablanca, lectotype: (A) general view, showing orifices filled with sand; (B) orifice with well-developed proximal teeth; (C) orifice showing poorly developed proximal teeth. (D–F) Fedhala (as Schizotheca serratimargo): (D) general view, showing calcified zooids, and vicarious and adventitious avicularia; (E) orifice with well-developed proximal teeth; (F) orifice showing poorly developed proximal teeth.
Figure 5 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 5. (A–C) Schizotheca buski sp. nov.: (A) group of ovicellate zooids with lanceolate adventitious avicularia (NHM-1899.7.1.5063, paratype); (B) a vicarious avicularium and a kenozooid with a porous plate (left) (NHM- 1899.7.1.5199, holotype); (C) primary orifice (NHM-1899.7.1.5199, holotype). (D–F) Schizotheca tuberigera: (D) group of autozooids, some ovicellate, with adventitious avicularia and a vicarious avicularium (MNHN-14121); (E) group of kenozooids with adventitious avicularia (MNHN-13831); (F) primary orifice (MNHN-14061).
Figure 3 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 3. Schizotheca fissa. Ría de Ferrol, NW Iberian Peninsula. (A) General view of the colony; (B, C) two primary orifices; (D) ancestrula and early astogenesis; (E) detail of the ancestrula.
Figure 4 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 4. (A–E) Schizotheca carmenae sp. nov.: (A) growing edge of the colony, showing adventitious avicularia (MNHN-7519); (B) growing edge of the colony, showing adventitious and vicarious avicularia (MNHN-7426, holotype); (C) primary orifice (MNHN-7426, holotype); (D) an ovicellate zooid with adventitious avicularia (MNHN-7426, holotype); (E) group of zooids at the growing edge, showing adventitious and vicarious avicularia (Sagres, Portugal, photograph: J.-G. Harmelin). (F, G) Schizotheca buski sp. nov.: (F) general view of the colony, showing two rows made of vicarious avicularia and kenozooids (NHM-1899.7.1.5199, holotype); (G) growing edge of the colony, showing vicarious avicularia (below) and oval adventitious avicularia (left above) (NHM- 1963.4.18.23).
Figure 1 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 1. Parasmittina talismani. (A) View of the colony (MNHN-299, holotype); (B) view in perspective, showing the development of the peristome and adventitious avicularia (MNHN-299, holotype); (C) an ovicellate zooid (MNHN- 1037); (D) primary orifice and adventitious avicularia (MNHN-1037); (E) primary orifice and adventitious avicularium (MNHN-299, holotype); (F) two broken zooids showing the lyrula, the adventitious avicularia and the remaining basis of spines under the ovicells (MNHN-1037); (G) growing edge of the colony (MNHN-299, holotype).
Figure 2 in Species of genus Schizotheca Hincks (Bryozoa, Cheilostomata) described in the Atlantic-Mediterranean region, with notes on some species of Parasmittina Osburn
Figure 2. (A) Parasmittina fraseri, holotype; (B) Parasmittina sp. (paratype #4 of P. fraseri); (C) P. fraseri; (D) Parasmittina regularis (labelled as P. fraseri). Photographs: (A, B, D) H. Chaney; (C) J. A. Sanner. Scale bars: 0.20 mm (A); 1.00 mm (B); 0.10 mm (C); 0.50 mm (D).
FIGURE 9. A–C. Parasmittina acondylata n in Taxonomy and diversity of coelobite bryozoans from drift coral cobbles on Co To Island, northern Vietnam
FIGURE 9. A–C. Parasmittina acondylata n. sp., holotype, VNMN-0236. A. Colony. B. Autozooids with and without ooecia, and primary orifices. C. Zooids forming ooecia, and primary orifices, some with alate lyrulae; arrowheads, adventitious avicularia. D–F. Metroperiella cotoensis n. sp., holotype, VNMN-0238. D. Autozooids, showing primary orifice. E. Young, perforated ooecia, before being covered by secondary calcification. F. Autozooid with semi-immersed ooecium (arrow). Scale bars: A, 500 µm; B, 150 µm; C–F, 250 µm.
FIGURE 8. Parasmittina parsevalioidea Liu, 2001. A. Colony VNMN-0232. B in Taxonomy and diversity of coelobite bryozoans from drift coral cobbles on Co To Island, northern Vietnam
FIGURE 8. Parasmittina parsevalioidea Liu, 2001. A. Colony VNMN-0232. B. Autozooids, with small, elliptical frontal avicularia; note bases to two oral spines in many zooids, VNMN-0230. C. Autozooid (top center) with long, spatulate, proximolaterally directed avicularium originating near orifice, VNMN-0230. D. Enlargement showing sharp, tusk-like condyles, lateral-oral avicularia with triangular mandibles, and quadrate-elliptical frontal avicularia, VNMN-0234. E. Enlargement of orifice showing sharp, denticulate condyle, VNMN-0233. F. Ooecia; note acute avicularium impinging on peristome and directed toward orifice (left-center), as well as elliptical frontal avicularia. VNMN-0229. Scale bars: A, 1.0 mm; B, 250 µm; C, F, 150 µm; D, 100 µm; E, 50 µm.
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