Results 111 to 120 of about 1,504 (124)

Phylogenomic analyses recover a clade of large-bodied decapodiform cephalopods

Molecular Phylogenetics and Evolution, 2021
Phylogenetic relationships among the squids and cuttlefishes (Cephalopoda:Decapodiformes) have resisted clarification for decades, despite multiple analyses of morphological, molecular and combined data sets. More recently, analyses of complete mitochondrial genomes and hundreds of nuclear loci have yielded similarly ambiguous results.
Anderson, Frank E, Lindgren, Annie R.
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Finding a home for the ram’s horn squid: phylogenomic analyses support Spirula spirula (Cephalopoda: Decapodiformes) as a close relative of Oegopsida

Organisms Diversity & Evolution, 2022
The molluscan clade Decapodiformes (Cephalopoda) comprises a diverse and enigmatic assemblage including inshore and offshore squids, bobtails, cuttlefishes, and the ram’s horn squid (Spirulida: Spirula spirula). The latter species is of particular interest to paleontologists because it is the only living cephalopod with an internal chambered, spiral ...
Annie R. Lindgren, Abigail Pratt, Michael Vecchione, Frank E. Anderson   +3 more
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A new genus and three new species of decapodiform cephalopods (Mollusca: Cephalopoda)

Reviews in Fish Biology and Fisheries, 2007
We describe here two new species of oegopsid squids. The first is an Asperoteuthis (Chiroteuthidae), and it is based on 18 specimens. This new species has sucker dentition and a funnel–mantle locking apparatus that are unique within the genus. The second new species is a Promachoteuthis (Promachoteuthidae), and is based on a unique specimen.
Young, R. E., Vecchione, Michael, Roper, Clyde F. E.   +2 more
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Glial cells in the posterior sub-esophageal mass of the brain in Sepia officinalis (Linnaeus, 1758) (decapodiformes–sepiida): ultrastructure and cytochemical studies

Invertebrate Neuroscience, 2020
Electron microscopy revealed that glial cells in the posterior sub-esophageal mass of the brain in Sepia officinalis had a well-developed rough endoplasmic reticulum formed by long coverslips with rectilinear or curvilinear arrangements. The coverslips appeared dilated and have a large amount of adhered polysomes.
G. Ibrahim, M. Luisetto, O. Latyshev
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The impact of length‐variable data and alignment criterion on the phylogeny of Decapodiformes (Mollusca: Cephalopoda)

Cladistics, 2007
AbstractIn molecular phylogenetics, mode of analysis is typically the primary reason cited for obtaining different topologies. However, sequence alignment is as important in determining topology as analytical method or optimality criterion, particularly for length‐variable sequences.
Annie R. Lindgren, Marymegan Daly
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Brooding and sperm storage by the deep-sea squid Bathyteuthis berryi (Cephalopoda: Decapodiformes)

Journal of the Marine Biological Association of the United Kingdom, 2012
Squids of the family Bathyteuthidae have generally been infrequently encountered in their deep-sea habitat. Remotely operated vehicles were used to observe seven individuals in situ in the Monterey Submarine Canyon, CA, USA. One of these was a female Bathyteuthis berryi holding a sheet with approximately 360 embedded embryos. Examination of this female
Stephanie L. Bush, Hendrik J. T. Hoving, Christine L. Huffard, Bruce H. Robison, Louis D. Zeidberg   +4 more
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The complete mitochondrial genome of the pygmy squid, Idiosepius (Cephalopoda: Decapodiformes): the first representative from the family Idiosepiidae

Mitochondrial DNA Part A, 2014
We report the first complete mitochondrial genome of the pygmy squid, Idiosepius, (Idiosepiidae). The mtDNA genome is 16,183 bp long with an AT content of 75.4%. All conserved metazoan mitochondrial genes are identified with the addition of a 1018 bp non-coding region.
Hall, Nathan E., Hanzak, Jan, Allcock, A. Louise, Cooke, Ira R., Ogura, Atsushi, Strugnell, Jan M.   +5 more
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A redescription of the fossil coleoid cephalopod genusPalaeololigoNaef, 1921 (Decapodiformes: Palaeololiginidae) and its relationship to Recent squids

Journal of Natural History, 2010
Neocoleoid cephalopods are poorly represented in the fossil record and fossils which can be confidently aligned with extant species are very scarce. The rare Solnhofen genus Palaeololigo is an exception to this, showing marked resemblance to Recent squids. Naef misinterpreted the structure of the fossilized gladius of Palaeololigo and the present study
Donovan, D.T., Strugnell, J.M.
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The complete mitochondrial genomes of deep-sea squid (Bathyteuthis abyssicola), bob-tail squid (Semirossia patagonica) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharanis), and their application to the phylogenetic analysis of Decapodiformes

Molecular Phylogenetics and Evolution, 2013
We determined the complete mitochondrial (mt) genomes of the deep-sea squid (Bathyteuthis abyssicola; supperfamily Bathyteuthoidea), the bob-tail squid (Semirossia patagonica; order Sepiolida) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharaonis; order Sepiida).
Kawashima Y, Nishihara H, Akasaki T, Nikaido M, Tsuchiya K, Segawa S, Okada N.   +6 more
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Molecular inference of phylogenetic relationships among Decapodiformes (Mollusca: Cephalopoda) with special focus on the squid Order Oegopsida

Molecular Phylogenetics and Evolution, 2010
Squids, cuttlefish and bobtail squids comprise the molluscan superorder Decapodiformes (Mollusca: Cephalopoda). Although these animals exemplify the morphological and ecological diversity seen in Cephalopoda, no previous study has focused resolving decapodiform relationships, particularly within Oegopsida, a large order comprised of pelagic squid.
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