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Gnathostomata

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Journal Article
Published: 01 January 2004
Journal of Paleontology (2004) 78 (1): 31–38.
...JEFFREY LEVINTON; LINDSEY DUBB; GREGORY A. WRAY Abstract A molecular survey of animal phylogeny ( Wray et al., 1996 ) recovered the presumed correct temporal order of the phylogenetic splits Protostomata-Deuterostomata, Echinodermata-Chordata, and Agnatha-Gnathostomata in studies of six of seven...
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Scanning electron micrographs of vertebrate microremains from sample H3-10 ...
Published: 01 July 2016
, possibly a ventral scale from N. costata . ( 12 ) Stellate tessera of nostolepid type UCR 7343/Ac45, probably from N. costata . ( 13 ) Smooth worn tooth UCR 7343/Gnath1 in lateral view with broken base, Gnathostomata sp. indet. ( 14 ) Acanthothoracid placoderm scale UCR 7343/Plac1. ( 15 ) ?Chondrichthyan
Journal Article
Published: 30 January 2019
Geological Magazine (2019) 156 (10): 1708–1714.
...) . Palaeontology 59 , 827 – 40 . Olive S , Clément G , Daeschler EB and Dupret V ( 2015 a ) Characterization of the placoderm (Gnathostomata) assemblage from the tetrapod-bearing locality of Strud (Belgium, upper Famennian) . Palaeontology 58 , 981 – 1002 . Olive S...
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Journal Article
Published: 01 July 2016
Journal of Paleontology (2016) 90 (4): 734–740.
..., possibly a ventral scale from N. costata . ( 12 ) Stellate tessera of nostolepid type UCR 7343/Ac45, probably from N. costata . ( 13 ) Smooth worn tooth UCR 7343/Gnath1 in lateral view with broken base, Gnathostomata sp. indet. ( 14 ) Acanthothoracid placoderm scale UCR 7343/Plac1. ( 15 ) ?Chondrichthyan...
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Journal Article
Published: 28 September 2001
Canadian Journal of Earth Sciences (2001) 38 (10): 1387–1401.
..., Vertebrata Linnaeus, and Gnathostomata Cope have been determined through cladistic analysis by Donoghue et al. ( 2000 ). All illustrated specimens are deposited in the National Type Repository in the Geological Survey of Canada (GSC). Several new species that are described in detail in Pyle and Barnes ( 2001...
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Journal Article
Journal: Paleobiology
Published: 01 January 2001
Paleobiology (2001) 27 (2): 392–404.
..., clypeasteroid, and spatangoid—evolved independently from regular echinoids. Nevertheless, the association of clypeasteroids and holectypoids (Gnathostomata) as distinct from cassiduloids and spatangoids (Atelostomata) continued to be popular and was the classification adopted by Durham (1966a...
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Journal Article
Published: 24 July 2013
Canadian Journal of Earth Sciences (2013) 50 (9): 945–954.
..., Geological Survey of Canada, Ottawa, Ontario. Gnathostomata Class Acanthodii Owen, 1846 Order Ischnacanthiformes Berg, 1940 Family Poracanthodidae Vergoossen, 1997 Ischnacanthiform acanthodians with scales having crown growth zones formed of Gomphonchus -type dentine (sensu...
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Journal Article
Published: 14 September 2011
Canadian Journal of Earth Sciences (2011) 48 (9): 1329–1341.
... present is T. parvidens , then according to Turner (1992) the deposit must be marginal marine. Gnathostomata Class Acanthodii Owen, 1846 Order Ischnacanthiformes Berg, 1940 Family Acritolepidae? Valiukevičius and Burrow, 2005 The isolated acanthodian fin spines...
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Journal Article
Published: 24 June 2010
Canadian Journal of Earth Sciences (2010) 47 (6): 913–925.
... and conodonts in the Baillie-Hamilton and Cornwallis Island sections, Canadian Arctic. Proceedings of the Estonian Academy of Science, Geology 47 51 57 Märss T. Wilson M.V.H. Thorsteinsson R. 2002 New thelodont and possible chondrichthyan (Gnathostomata) taxa established in the Silurian...
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Journal Article
Published: 10 October 2008
Canadian Journal of Earth Sciences (2008) 45 (8): 897–908.
... ( Wang 1993 ), Morocco, Saudi Arabia, and South Africa (see Lelièvre et al. 1993 and Turner et al. 2005 , tables 6, 7 for summaries of occurrences), and we discuss their status in this paper. Gnathostomata Class Acanthodii Owen, 1846 ?Family Gyracanthidae Woodward, 1906...
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Journal Article
Journal: Paleobiology
Published: 26 September 2019
Paleobiology (2019) 45 (4): 636–651.
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Journal Article
Published: 01 November 2013
Journal of Paleontology (2013) 87 (6): 1041–1059.
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Journal Article
Published: 01 March 2007
Geological Magazine (2007) 144 (2): 333–359.
... ( Hawkins, 1934 ). Durham & Melville (1957) used lantern and tooth morphology to derive irregular echinoids from aulodont and stirodont regular ancestors through three distinct lineages: (1) the Pygasteroida Durham & Melville, 1957, (2) the Gnathostomata Zittel, 1879 (holectypoids...
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Journal Article
Journal: Paleobiology
Published: 01 May 2009
Paleobiology (2009) 35 (2): 251–269.
... ) falling just outside crown Gnathostomata ( Brazeau 2009 ). This phylogenetic placement, coupled with remarkable morphological variation in the feeding system ( Carr 1995 ), makes placoderms an early example of jaw diversification that occurred in parallel to the diversification of crown gnathostomes...
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Journal Article
Published: 01 November 2006
Journal of Paleontology (2006) 80 (6): 1186–1204.
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Series: NRC Monograph Publishing Program, NRC Monograph Publishing Program
Published: 01 January 2002
EISBN: 9780660189895
... The suprageneric classification of orders of conodonts proposed in Sweet (1988) and modified by Aldridge and Smith (1993) is followed herein. Additional suprageneric ranks of Craniata Linnaeus, 1758 , Vertebrata Linnaeus, 1758 , and Gnathostomata Cope, 1889 , have been determined through...
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