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Harpetida

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Journal Article
Published: 01 November 2006
Journal of Paleontology (2006) 80 (6): 1152-1171.
... Harpetidae Hawle and Corda, 1847 . Systematics of the “entomaspidid” trilobites have rarely been addressed, and only Ludvigsen (1982 , p. 67–68) and Ludvigsen and Westrop ( in Ludvigsen et al., 1989 , p. 47–49) have reviewed the group. A major problem, as with many Upper Cambrian trilobite taxa...
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Orders Proetida Fortey and Owens,  1975 ,
                and Ptychopariida...
Published: 01 March 2017
and posterior oblique views (×7.8) of largely exfoliated pygidium, Ninemile Formation, WCN-143, CM 59073. ( 15 ) Harpetidae indet., dorsal view (×2.5) of fragmentary cephalon, Ninemile Formation, WCN-64, CM 59074.
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Photographs are of internal moulds except where stated. ( A )  Calymene ? s...
Published: 06 January 2016
) cephalon BU 4756; dorsal view, locality WH. ( I–J ) Raphiophorus parvulus from the Colonus Shale, Smedstorp, Sweden. ( I ) cranidium LO 2822t; dorsal view. ( J ) pygidium LO 2823t; dorsal view. ( K ) Harpetidae indet. from the Coldwell Siltstone Formation, lower calcareous unit, locality CKF. Latex cast
Journal Article
Published: 01 July 2006
Journal of Paleontology (2006) 80 (4): 786.
..., Aulacopleuridae, and Harpetidae. These families are represented by 52 named species (32 new), with a further 8 forms described under open nomenclature, belonging to 30 genera (1 new). Plate 85 is devoted to late Ordovician trilobites from the Ellis Bay Formation, close to the Ordovician–Silurian boundary...
Journal Article
Published: 01 November 2007
Bulletin de la Société Géologique de France (2007) 178 (6): 473-483.
... such as the Corynexochida, Harpetida and Lichida disappeared, and the two orders surviving the crisis, the Phacopida and Proetida, were severely affected. Paléobiodiversité des trilobites en Ardenne occidentale au Dévonien, Dans les environnements favorables du Dévonien de l’Ardenne occidentale, les trilobites...
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Series: Geological Society, London, Memoirs
Published: 01 January 2013
DOI: 10.1144/M38.20
EISBN: 9781862396425
.... The first unequivocally dated odontopleurids are Floian (but see discussion of Archaeopleura below) and at present they remain a classically ‘cryptogenetic’ ( Stubblefield 1959 ) taxon. Whittington (in Moore, 1959 ) erected Harpina as a suborder of Ptychopariida to include the families Harpetidae...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.5
EISBN: 9781862399556
... of the Trilobita. Five orders existed worldwide during the Frasnian – the Corynexochida, Odontopleurida, Harpetida, Phacopida and Proetida – and all had fossil records extending back more than 100 myr ( Fortey & Owens 1997 ). However, only two of them, the Phacopida and Proetida, persisted into the Famennian...
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Journal Article
Published: 01 January 2001
Journal of Paleontology (2001) 75 (1): 216-218.
... Heidelberg Berlin , 448 p. Owen , A. W. 1980 . An abnormal cranidium of the trilobite Calyptaulax norvegicus .. Norsk Geologisk Tidsskrift , 60 : 87 – 88 . Owen , A. W. 1983 . Abnormal cephalic fringes in the Trinucleidae and Harpetidae (Trilobita) . Special Papers...
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Journal Article
Published: 06 January 2016
Proceedings of the Yorkshire Geological Society (2016) 61 (1): 1-23.
... ) cephalon BU 4756; dorsal view, locality WH. ( I–J ) Raphiophorus parvulus from the Colonus Shale, Smedstorp, Sweden. ( I ) cranidium LO 2822t; dorsal view. ( J ) pygidium LO 2823t; dorsal view. ( K ) Harpetidae indet. from the Coldwell Siltstone Formation, lower calcareous unit, locality CKF. Latex cast...
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Journal Article
Published: 01 January 2008
Bulletin de la Société Géologique de France (2008) 179 (1): 89-95.
... are Proetida (19%), Corynexochida (4%) and Lichida (3%). Lichida are linked to neritic and peri-reefal environments. The only contemporaneous order known elsewhere the Harpetida has not been identified at this site. Among Phacopida, 60% are Phacopidae and 15% are Acastidae; among Proetida, 18% are Proetidae...
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Journal Article
Published: 01 March 2017
Journal of Paleontology (2017) 91 (2): 294-317.
... and posterior oblique views (×7.8) of largely exfoliated pygidium, Ninemile Formation, WCN-143, CM 59073. ( 15 ) Harpetidae indet., dorsal view (×2.5) of fragmentary cephalon, Ninemile Formation, WCN-64, CM 59074. ...
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Journal Article
Published: 01 September 2006
Journal of Paleontology (2006) 80 (5): 981-992.
..., Tropidocoryphidae, Odontopleuridae, Harpetidae, and Phacopidae, will be described in subsequent papers. The material described in this paper came mainly from the western and eastern flanks of McWhae Ridge, a faulted reef spine located at the southern end of the Lawford Range in the Kimberley District of Western...
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Journal Article
Journal: PALAIOS
Published: 01 September 2014
PALAIOS (2014) 29 (9): 495-500.
... revision of the family Harpetidae (Trilobita) : Records of the Western Australian Museum , v. 21 , p. 235 – 267 . Fatka O. Mergl M. 2009 , The “microcontinent” Perunica: status...
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Journal Article
Published: 01 May 2000
Scottish Journal of Geology (2003) 36 (1): 33-37.
... , 209 – 224 . PŘIBYL , A. and VANEK , J. 1986 . A study of the morphology and phylogeny of the Family Harpetidae Hawle and Corda, 1847 (Trilobita) . Sbornik Narodniho Muzea v Praze 42B , 1 – 72 . REJEBIAN , V. A. , HARRIS , A. G. and HUEBNER , J. S. 1987 . Conodont...
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Journal Article
Published: 20 January 2017
Canadian Journal of Earth Sciences (2017) 54 (2): 113-128.
...., Crepicephalidae and “ Modocia ” as basal to Family Harpetidae), as well as the fact that several key interior nodes have Bremer support of only one, indicate that their result is not particularly robust. In this this paper, we prefer to follow Adrain’s classification. Genus Holmdalia Robison, 1988...
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Journal Article
Published: 01 September 2000
Journal of Paleontology (2000) 74 (5): 879-889.
..., the search for Cambrian ancestors of Ordovician trilobites needs to be intensified, together with a search for more complete exoskeletons of Cambrian species. We already know that the prominent post-Cambrian groups of Asaphoidea, Harpetidae, and Odontopleuroidea had such Cambrian origins. Further, Middle...
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Journal Article
Published: 01 November 2010
Journal of Paleontology (2010) 84 (6): 1188-1205.
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Journal Article
Published: 01 November 2011
Journal of Paleontology (2011) 85 (6): 1128-1153.
..., 1998 , has since been synonymized with Adelogenus (Family Proasaphiscidae, Peng et al., 2004 ), Pterocephalopsinus Jell in Jell and Adrain, 2003 , has since been synonymized with Baikadamaspis (Family Harpetidae? Peng et al., 2004 ), and Pterocephalina Resser, 1938 , was previously synonymized...
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Journal Article
Published: 09 September 2008
Geological Magazine (2009) 146 (1): 12-33.
.... In these deposits the three orders that became extinct during the Frasnian–Famennian biocrises were the Corynexochida ( McNamara & Feist, 2006 ), the Lichida ( Feist & McNamara, 2007 ) and the Harpetida (McNamara, Feist & Ebach, in press). Here we focus on one of the groups that survived this event...
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Journal Article
Published: 01 September 2007
Geological Magazine (2007) 144 (5): 777-796.
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