Dennis Gordon - Academia.edu (original) (raw)
Papers by Dennis Gordon
Zootaxa, 2021
This short account is an invited contribution to the Zootaxa special volume ‘Twenty years of Zoot... more This short account is an invited contribution to the Zootaxa special volume ‘Twenty years of Zootaxa.’ Zootaxa was first published on 28 May 2001. Between this date and December 2020, 116 papers were published in Zootaxa that mention Bryozoa, comprising mostly descriptions of new species and higher taxa, but also including molecular sequencing (e.g. Fehlauer-Ale et al. 2011; Taylor et al. 2011; Franjevic et al. 2015), invasive-species research (e.g. Ryland et al. 2014; Vieira et al. 2014), checklists (e.g. Vieira et al. 2008), classification (e.g. Bock & Gordon 2013), bryozoans as associates of other organisms (e.g. Rudman 2007; Chatterjee & Dovgal 2020; Chatterjee et al. 2020), metazoan phylogeny (e.g. Giribet et al. 2013), biographies of historical figures who worked on bryozoans (e.g. Calder & Brinkmann-Voss 2011; Calder 2015) and a catalogue of the fossil invertebrate taxa described by William Gabb (including 67 bryozoan species) (Groves & Squires 2018). Of the 116 papers, 15 (1...
Fig. 9. A. Optical view of the abfrontal side of a distal marginal autozooid (polypide reduced to... more Fig. 9. A. Optical view of the abfrontal side of a distal marginal autozooid (polypide reduced to a residual brown body, bb) adjacent to a lateral kenozooid in which there is a distally tapered (i.e., apically developing) intracoelomic calcareous rod (arrow). B. SEM of a similar view to A but of skeletal elements only, showing the distal tip of the calcareous rod (white arrow) and the communication pores (blue arrowhead) that allow nutrient connectivity between the feeding autozooid and non-feeding kenozooid in which the coelomic cavity comes to be filled by the calcareous rod. C. Fractured transverse section of a calcareous rod showing alternating thick and thin wall-perpendicular prismatic fabric. D. Part of C magnified. Scale bars: A = 200 μm; B = 100 μm; C = 25 μm; D = 5 μm.
Fig. 6. Bryoconversor tutus gen. et sp. nov., holotype, ♀, NIWA 88918, 1.72 mm long. A. Pereopod ... more Fig. 6. Bryoconversor tutus gen. et sp. nov., holotype, ♀, NIWA 88918, 1.72 mm long. A. Pereopod 5. B. Pereopod 6. C. Pereopod 7. D. Pleopod 1. Scale bars = 100 μm.
Marine Biology, 1974
The architecture and function of the lophophore of the marine bryozoan Cryptosula pallasiana (Mol... more The architecture and function of the lophophore of the marine bryozoan Cryptosula pallasiana (Moll) are described, including some new features not previously discovered in bryozoans. The nature of fluid movements within the lophophoral coelom during feeding activities is postulated on the basis of the arrangements of epithelia and muscles. Epithelial cells at the tentacle bases are blastemic in nature, and there is a ciliated pit of unknown function in the angle between every pair of tentacles. There are 6 nerves in each tentacle, including a pair of single-axon subperitoneal nerves. Neurosecretory-like vesicles and glycogen occur in some neurons of the ganglion. The basal lamina collagen has a diameter smaller than that previously recorded for an invertebrate. Filament dimensions are given for several different muscles. Tentacle muscles and lophophore retractor muscles are smooth. Thick paramyosin-like filaments up to 75 nm diameter occur in two muscle types. A new set of muscles is described: the basal transverse muscles of the tentacles.
Journal of Zoological Systematics and Evolutionary Research, 2021
Journal of the Marine Biological Association of the United Kingdom, 2021
Thirteen new genera and three new families of cheilostome Bryozoa are described from the New Zeal... more Thirteen new genera and three new families of cheilostome Bryozoa are described from the New Zealand biogeographic region, centred on Zealandia, between 26.42° (northern Norfolk Ridge) and 54.02°S latitude (south-east Campbell Plateau) from coastal waters to bathyal depths (46‒1676 m). The new genera, comprising 15 new and one previously described Zealandian species, are: Elementella (Elementellidae n. fam.), Niwapora, Quasicallopora, Quitocallopora, Judyella (Calloporidae), Ellisantropora (Antroporidae), Rhizellisina (Ellisinidae), Radixenia (Calloporoidea incertae sedis), Granomurus (Granomuridae n. fam.), Carolanna (Bugulidae), Borioplebs (Borioplebidae n. fam.), Seabournea (Cribrilinidae) and Waeschenbachia (Romancheinidae). A new Recent species of the otherwise Eocene‒Miocene genus Vincularia is also described from deep water on the Three Kings Ridge. Two new combinations are created – Judyella precocialis (Gordon, 1984) and Ellisantropora aggregata (Gordon, 1984). Ellisantropo...
Zootaxa, 2021
This short account is an invited contribution to the Zootaxa special volume ‘Twenty years of Zoot... more This short account is an invited contribution to the Zootaxa special volume ‘Twenty years of Zootaxa.’ Zootaxa was first published on 28 May 2001. Between this date and December 2020, 116 papers were published in Zootaxa that mention Bryozoa, comprising mostly descriptions of new species and higher taxa, but also including molecular sequencing (e.g. Fehlauer-Ale et al. 2011; Taylor et al. 2011; Franjevic et al. 2015), invasive-species research (e.g. Ryland et al. 2014; Vieira et al. 2014), checklists (e.g. Vieira et al. 2008), classification (e.g. Bock & Gordon 2013), bryozoans as associates of other organisms (e.g. Rudman 2007; Chatterjee & Dovgal 2020; Chatterjee et al. 2020), metazoan phylogeny (e.g. Giribet et al. 2013), biographies of historical figures who worked on bryozoans (e.g. Calder & Brinkmann-Voss 2011; Calder 2015) and a catalogue of the fossil invertebrate taxa described by William Gabb (including 67 bryozoan species) (Groves & Squires 2018). Of the 116 papers, 15 (1...
Fig. 9. A. Optical view of the abfrontal side of a distal marginal autozooid (polypide reduced to... more Fig. 9. A. Optical view of the abfrontal side of a distal marginal autozooid (polypide reduced to a residual brown body, bb) adjacent to a lateral kenozooid in which there is a distally tapered (i.e., apically developing) intracoelomic calcareous rod (arrow). B. SEM of a similar view to A but of skeletal elements only, showing the distal tip of the calcareous rod (white arrow) and the communication pores (blue arrowhead) that allow nutrient connectivity between the feeding autozooid and non-feeding kenozooid in which the coelomic cavity comes to be filled by the calcareous rod. C. Fractured transverse section of a calcareous rod showing alternating thick and thin wall-perpendicular prismatic fabric. D. Part of C magnified. Scale bars: A = 200 μm; B = 100 μm; C = 25 μm; D = 5 μm.
Fig. 6. Bryoconversor tutus gen. et sp. nov., holotype, ♀, NIWA 88918, 1.72 mm long. A. Pereopod ... more Fig. 6. Bryoconversor tutus gen. et sp. nov., holotype, ♀, NIWA 88918, 1.72 mm long. A. Pereopod 5. B. Pereopod 6. C. Pereopod 7. D. Pleopod 1. Scale bars = 100 μm.
Marine Biology, 1974
The architecture and function of the lophophore of the marine bryozoan Cryptosula pallasiana (Mol... more The architecture and function of the lophophore of the marine bryozoan Cryptosula pallasiana (Moll) are described, including some new features not previously discovered in bryozoans. The nature of fluid movements within the lophophoral coelom during feeding activities is postulated on the basis of the arrangements of epithelia and muscles. Epithelial cells at the tentacle bases are blastemic in nature, and there is a ciliated pit of unknown function in the angle between every pair of tentacles. There are 6 nerves in each tentacle, including a pair of single-axon subperitoneal nerves. Neurosecretory-like vesicles and glycogen occur in some neurons of the ganglion. The basal lamina collagen has a diameter smaller than that previously recorded for an invertebrate. Filament dimensions are given for several different muscles. Tentacle muscles and lophophore retractor muscles are smooth. Thick paramyosin-like filaments up to 75 nm diameter occur in two muscle types. A new set of muscles is described: the basal transverse muscles of the tentacles.
Journal of Zoological Systematics and Evolutionary Research, 2021
Journal of the Marine Biological Association of the United Kingdom, 2021
Thirteen new genera and three new families of cheilostome Bryozoa are described from the New Zeal... more Thirteen new genera and three new families of cheilostome Bryozoa are described from the New Zealand biogeographic region, centred on Zealandia, between 26.42° (northern Norfolk Ridge) and 54.02°S latitude (south-east Campbell Plateau) from coastal waters to bathyal depths (46‒1676 m). The new genera, comprising 15 new and one previously described Zealandian species, are: Elementella (Elementellidae n. fam.), Niwapora, Quasicallopora, Quitocallopora, Judyella (Calloporidae), Ellisantropora (Antroporidae), Rhizellisina (Ellisinidae), Radixenia (Calloporoidea incertae sedis), Granomurus (Granomuridae n. fam.), Carolanna (Bugulidae), Borioplebs (Borioplebidae n. fam.), Seabournea (Cribrilinidae) and Waeschenbachia (Romancheinidae). A new Recent species of the otherwise Eocene‒Miocene genus Vincularia is also described from deep water on the Three Kings Ridge. Two new combinations are created – Judyella precocialis (Gordon, 1984) and Ellisantropora aggregata (Gordon, 1984). Ellisantropo...