Jens T. Høeg, Marcos Pérez‐Losada, Henrik Glenner, Gregory A. Kolbasov, Keith A. Crandall,
... use a previously published phylogenetic analysis of the Thecostraca to trace character evolution in the major lineages ... morphology for almost all major branches within the Thecostraca. Characters from the cypris larva provide a long ... is concluded, as envisaged by Darwin, that the Thecostraca provide excellent opportunities for studying the evolution of ...
Tópico(s): Parasite Biology and Host Interactions
2009 - Pensoft Publishers | Arthropod Systematics & Phylogeny
Marcos Pérez‐Losada, Jens T. Høeg, Keith A. Crandall,
The Thecostraca are arguably the most morphologically and biologically variable group within the Crustacea, including both suspension feeders (Cirripedia: ... trees depicted the main phylogenetic relationships within the Thecostraca as (Facetotecta, (Ascothoracida, (Acrothoracica, (Rhizocephala, Thoracica)))). Our analyses ... whether the most recent common ancestor of the Thecostraca was free-living or some primitive form of ...
Tópico(s): Aquatic Invertebrate Ecology and Behavior
2009 - BioMed Central | BMC Biology
Alexandra S. Petrunina, Tatiana V. Neretina, N. S. Mugue, Gregory A. Kolbasov,
... Tantulocarida are very close relatives of the class Thecostraca, which comprise cirripedes, ascothoracidans and the enigmatic facetotectans. ... Tantulocarida are also indicated as nested within the Thecostraca, being sister group to the Cirripedia. We therefore ... the Tantulocarida in relation to or within the Thecostraca must be pursued by a more extensive database ...
Tópico(s): Crustacean biology and ecology
2013 - Wiley | Journal of Zoological Systematics & Evolutionary Research
Jens T. Høeg, Gregory A. Kolbasov,
... of lattice organs represent an autapomorphy for the Thecostraca, which supports the monophyly of this taxon. In ... are omnipresent in the settling instar of the Thecostraca they probably serve a critical role for the ...
Tópico(s): Coral and Marine Ecosystems Studies
2002 - Wiley | Acta Zoologica
Marcos Pérez‐Losada, Jens T. Høeg, Gregory A. Kolbasov, Keith A. Crandall,
... to agree on phylogenetic relationships within the Crustacea Thecostraca (=Facetotecta, Ascothoracida, and Cirripedia). Three recent phylogenetic studies ... Facetotecta as the sister group to the remaining Thecostraca (Ascothoracida Cirripedia).
Tópico(s): Parasite Biology and Host Interactions
2002 - Oxford University Press | Journal of Crustacean Biology
Marcos Pérez‐Losada, Keith A. Crandall, Gregory A. Kolbasov, Jens T. Høeg,
... to agree on phylogenetic relationships within the Crustacea Thecostraca (=Facetotecta, Ascothoracida, and Cirripedia). Three recent phylogenetic studies ... Facetotecta as the sister group to the remaining Thecostraca (Ascothoracida |$+$| Cirripedia).
Tópico(s): Subterranean biodiversity and taxonomy
2002 - Oxford University Press | Journal of Crustacean Biology
Alexey V. Rybakov, Jens T. Høeg, Peter Gram Jensen, Gregory A. Kolbasov,
... are peculiar chemoreceptors found only in the Crustacea Thecostraca (Facetotecta, Ascothoracida, Cirripedia). In these taxa, five pairs ... stage. Lattice organs represent an autapomorphy for the Thecostraca but their evolutionary origin and possible homologues in ...
Tópico(s): Subterranean biodiversity and taxonomy
2003 - Elsevier BV | Zoologischer Anzeiger
Gregory A. Kolbasov, Mark J. Grygier, Jens T. Høeg, Waltraud Klepal,
... We briefly review lattice organ morphology across the Thecostraca. These organs are normally considered structures of the ... in adult (males) Ascothoracida is unique in the Thecostraca. The continued morphological modification of these sensory structures ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2008 - Elsevier BV | Zoologischer Anzeiger
Marcos Pérez‐Losada, Jens T. Høeg, Keith A. Crandall,
... monographs, few studies have tested evolutionary hypotheses about Thecostraca within a phylogenetic context. In this review, we ... an opportunity to reevaluate previous classifications of the Thecostraca and the theories relating to the origin and ...
Tópico(s): Parasite Biology and Host Interactions
2012 - Oxford University Press | Integrative and Comparative Biology
Geoffrey A. Boxshall, Roger J. Lincoln,
... They appear to be related to the barnacles (Thecostraca), both groups possessing a median penis derived from ... an affinity with a larger group containing the Thecostraca and the Copepoda.
Tópico(s): Marine Biology and Ecology Research
1987 - Royal Society | Philosophical transactions of the Royal Society of London. Series B, Biological sciences
... rhizocephalans being the sister group to all other Thecostraca or a scenario where they evolved from a ... of their sperm are synapomorphic relative to other Thecostraca and indicate that these three orders form a ...
Tópico(s): Marine Biology and Ecology Research
1992 - Wiley | Acta Zoologica
Trisha Spears, Lawrence G. Abele, Marcia Applegate,
... relationships within this group. We conclude that the Thecostraca, represented here by the subclasses Ascothoracida and Cirripedia ( ...
Tópico(s): Nematode management and characterization studies
1994 - Oxford University Press | Journal of Crustacean Biology
Todd H. Oakley, Joanna M. Wolfe, Annie R. Lindgren, Alexander K. Zaharoff,
... Mystacocarida, Branchiura, and Pentastomida); Multicrustacea (Copepoda, Malacostraca, and Thecostraca); and a clade we refer to as Allotriocarida ( ... ostracod monophyly. Within Multicrustacea, we find support for Thecostraca plus Copepoda, for which we suggest the name ...
Tópico(s): Marine Sponges and Natural Products
2012 - Oxford University Press | Molecular Biology and Evolution
... naupliar apomorphies confirm the monophyletic status of the Thecostraca, Copepoda, Podoplea, Harpacticoida Oligoarthra (the Harpacticoida Polyarthra were ... on naupliar characters is hypothesized for the Copepoda/Thecostraca. As for copepod nauplii, the following autapomorphies are ...
Tópico(s): Marine Biology and Environmental Chemistry
2004 - Biodiversity Research Center, Academia Sinica | Zoological studies
Joanna M. Wolfe, Thomas A. Hegna,
... is a member of the stem lineage of Thecostraca or (Thecostraca + Copepoda), and Yicaris and Rehbachiella are probably members ...
Tópico(s): Marine Biology and Ecology Research
2013 - Wiley | Cladistics
Robert G. Young, Cathryn L. Abbott, Thomas W. Therriault, Sarah J. Adamowicz,
... distributed marine groups, such as the Copepoda and Thecostraca, remains largely untested. We investigate whether a cytochrome ...
Tópico(s): Environmental DNA in Biodiversity Studies
2016 - NRC Research Press | Genome
Benny K. K. Chan, Niklas Dreyer, Andrew S. Gale, Henrik Glenner, Christine Ewers-Saucedo, Marcos Pérez‐Losada, Gregory A. Kolbasov, Keith A. Crandall, Jens T. Høeg,
... the higher-level classification of the barnacles (Crustacea: Thecostraca) to the genus level and including both extant ... or morphological data. Our resulting classification divides the Thecostraca into the subclasses Facetotecta, Ascothoracida and Cirripedia. The ...
Tópico(s): Marine and coastal plant biology
2020 - Oxford University Press | Zoological Journal of the Linnean Society
Gregory A. Kolbasov, Alexandra S. Savchenko, Niklas Dreyer, Benny K. K. Chan, Jens T. Høeg,
... pairs considered as a ground pattern for all Thecostraca. We also determine plesiomorphic and apomorphic characters of ...
Tópico(s): Coral and Marine Ecosystems Studies
2022 - Wiley | Ecology and Evolution
Gregory A. Kolbasov, Alexandra S. Savchenko, William A. Newman, Benny K. K. Chan,
... Waginella have a unique structure distinguishing from all Thecostraca. Waginella ebonita sp. nov. is the second species ...
Tópico(s): Marine Bivalve and Aquaculture Studies
2021 - Frontiers Media | Frontiers in Marine Science
Cyprid settlement and host invasion was studied in the rhizocephalan Clistosaccus paguri (Clistosaccidae) using transmission electron microscopy. Male and female larvae appear to be morphologically identical. The infestive kentrogon instar known from the Peltogastridae, Lernaeodiscidae, and Sacculinidae is absent in the Clistosaccidae. Instead, the cyprid itself uses an antennule to penetrate through the host integument. This is the same mechanism used by functional male cyprids to implant spermatogonia ...
Tópico(s): Marine Biology and Ecology Research
1990 - Oxford University Press | Journal of Crustacean Biology
Tópico(s): Cephalopods and Marine Biology
1990 - Oxford University Press | Journal of Crustacean Biology
... and Rhizocephala and distinguishes them from the other Thecostraca. Structural differences in the sperm nucleus separate the ...
Tópico(s): Plant and animal studies
1990 - Australian Museum | Records of the Australian Museum
... reclassified as superorders within the resurrected maxillopodan subclass Thecostraca GRUVEL.
Tópico(s): Environmental Toxicology and Ecotoxicology
1987 - Taylor & Francis | Sarsia
Gerhard Scholtz, Ekaterina A. Ponomarenko, Carsten Wolff,
Several aspects of phylogenetic relationships among barnacles (Cirripedia) are still unresolved. One of the contentious issues is the position of the parasitic Rhizocephala. In most molecular phylogenies Rhizocephala are resolved as sister group to a monophyletic Thoracica. However, since Rhizocephala are morphologically highly derived there is not a single morphological character supporting this view. Here we present data on the early cleavage patterns and the gastrulation of two rhizocephalan species. ...
Tópico(s): Marine Biology and Ecology Research
2009 - Pensoft Publishers | Arthropod Systematics & Phylogeny
Heather D. Bracken‐Grissom, Sammy De Grave, Alicia Toon, Darryl L. Felder, Keith A. Crandall,
... 1994). Phylogenetic study of cirripedes and selected relatives (Thecostraca) based on 18S rDNA sequence analysis. Journal of ...
Tópico(s): Parasite Biology and Host Interactions
2009 - Wiley | Zoologica Scripta
Stefan Richter, Ole Møller, Christian S. Wirkner,
... is monophyletic, and while the monophyly of the Thecostraca is well supported, the origin of Rhizocephala remains ...
Tópico(s): Fish biology, ecology, and behavior
2009 - Pensoft Publishers | Arthropod Systematics & Phylogeny
Niklas C. Lagersson, J. H x F eg,
Tópico(s): Coral and Marine Ecosystems Studies
2002 - Springer Science+Business Media | Marine Biology
The external morphology of the dwarf males of Lithoglyptes mitis, Lithoglyptes bicornis, Kochlorine hamata, Kochlorine sp., Cryptophialus hoegi, Cryptophialus sp., and Trypetesa lampas was examined under SEM. New data on the cuticular structures are compared with existing information on acrothoracican and thoracican males. The structure of the male mantle differs among acrothoracican families and thus may have taxonomic value.
Tópico(s): Insect and Arachnid Ecology and Behavior
2002 - Elsevier BV | Zoologischer Anzeiger
Gregory A. Kolbasov, Jens T. Høeg,
From a number of partial moult series obtained by laboratory culture of plankton-caught specimens, and based on drawings from whole-mounted material, we describe all the larval instars, including the y-cypris, of a new species of Facetotecta. The mid-length constriction of the antennulary aesthetasc and the shape of the head shield separate the y-cypris in our material from all other forms of y-cyprids previously assigned to species. The morphology of the present y-nauplii and y-cypris is compared ...
Tópico(s): Marine Ecology and Invasive Species
2003 - Taylor & Francis | Sarsia
Trisha Spears, Lawrence G. Abele, Marcia Applegate,
Tópico(s): Invertebrate Taxonomy and Ecology
1994 - Oxford University Press | Journal of Crustacean Biology