<i>PTERYGOTUS ANGLICUS</i> AGASSIZ (CHELICERATA: EURYPTERIDA) FROM ATHOLVILLE, LOWER DEVONIAN CAMPBELLTON FORMATION, NEW BRUNSWICK, CANADA

Miller, Randall F.

doi:10.1111/j.1475-4983.2007.00683.x

Cited by 25 publications

(40 citation statements)

References 42 publications

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“…Parahughmilleria that was probably part of an estuarine assemblage. Miller (2007a) discussed the Campbellton Formation pterygotid fauna as inhabiting estuarine or lagoonal paleoenvironments. Sizes of individuals suggested that juveniles and adults comprised the assemblage.…”

Section: Discussionmentioning

confidence: 99%

A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada

Miller¹,

Kennedy

Gibling

2012

atgeol

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The Early Devonian Campbellton Formation in northern New Brunswick, Canada, yielded its first eurypterid fossils in 1881. Based on recent taxonomic work, all known specimens have been assigned to Pterygotus anglicus, a large pterygotid first described from Scotland. These previously discovered eurypterids are from the western exposure of the Campbellton Formation and are believed to have inhabited a coastal deltaic setting, along with a rich vertebrate assemblage that included cephalaspids, placoderms, acanthodians, and sharks. The single eurypterid abdominal fragment described here as cf. Parahughmilleria was found in beds near the eastern exposure of the formation from a lacustrine facies. These beds are from classic plant-rich localities of the Campbellton Formation and, in addition to plants, have yielded the oldest land-animal assemblage in North America. A eurypterid from the lacustrine facies of the Early DevonianCampbellton Formation, New Brunswick, Canada ABSTRACT RÉSUMÉLes premiers fossiles d' euryptéridés dans la Formation de Campbellton du Dévonien précoce, dansle nord du Nouveau-Brunswick, au Canada, ont été découverts en 1881. À la lumière de récents travaux de taxonomie, tous les spécimens connus ont été attribués à l' espèce Pterygotus anglicus, un ptérygotus de grande taille décrit initialement en Écosse. Ces euryptéridés découverts antérieurement proviennent d'un affleurement dans la partie ouest de la Formation de Campbellton et on croit que l' espèce a fréquenté un milieu du delta côtier, de pair avec un assemblage riche en vertébrés, qui a compris des céphalaspides, des placodermes, des acanthodiens et des requins. Le fragment abdominal unique d' euryptéridé décrit ici peut se comparer à celui de l' espèce Parahughmilleria et il a été décou-vert dans les couches d'un faciès lacustre, près de l'affleurement de la partie orientale de la formation. Ces couches proviennent généralement d' emplacements riches en végétaux de la Formation de Campbellton. En plus des plantes, ces sites ont permis de mettre à jour les assemblages d'animaux terrestres les plus anciens d' Amérique du Nord. [Traduit par la redaction]ATLANTIC GEOLOGY 48,

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Section: Discussionmentioning

confidence: 99%

A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada

Miller¹,

Kennedy

Gibling

2012

atgeol

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“…Pterygotus anglicus from the Atholville locality (Miller 2007) occurs higher in the section in a relatively unfossiliferous mudstone (Fig. 2), with only occasional to rare plant fragments and few ostracods.…”

Section: Resultsmentioning

confidence: 99%

“…A lagoon or estuary environment is likely represented (Miller 2007) since rare prasinophyte algae (tasmanitids) from the upper part of the section at Atholville (Fig. 2) indicate a marine connection (Blieck and Cloutier 2000).…”

Section: Resultsmentioning

confidence: 99%

“…More recently Ciurca and Tetlie (2007) and Tetlie (2007) have reviewed eurypterid phylogeny and provided an updated cladogram. Miller (2007) provided an emended diagnosis for Pterygotus anglicus with additional details concerning the chelicera, considered one of the key diagnostic structures to distinguish species of pterygotids. Tollerton (1989) provided a summary of terminology to describe and differentiate eurypterids.…”

Section: Location and Geologymentioning

confidence: 99%

“…A reconstruction of the chelicera of P. anglicus (Fig. 6) based on specimens from the Atholville site (Miller 2007) indicates a primary denticle (d1) flanked by up to three intermediate denticles (d2 to d4) between d1 and the terminal denticle (td) and one or two (perhaps more) intermediate denticles (d6, d7) on the proximal side of d1. Smaller denticles occur between the d1 and d7 denticles and along the free ramus where it is inserted into the fixed ramus (NHM In.59051).…”

confidence: 99%

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Nineteenth century collections of Pterygotus anglicus Agassiz (Chelicerata; Eurypterida) from the Campbellton Formation, New Brunswick, Canada

Miller

2007

atgeol

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The Devonian fauna from the Campbellton Formation of northern New Brunswick was discovered in 1881 at the classic locality in Campbellton. About a decade later A.S. Woodward at the British Museum (Natural History) (now the Natural History Museum, London) acquired specimens through fossil dealer R.F. Damon. Woodward was among the first to describe the fish assemblage of ostracoderms, arthrodires, acanthodians and chondrichthyans. At the same time the museum also acquired specimens of a large pterygotid eurypterid. Although the vertebrates received considerable attention, the pterygotids at the Natural History Museum, London are described here for the first time. The first pterygotid specimens collected in 1881 by the Geological Survey of Canada were later identified by Clarke and Ruedemann in 1912 as Pterygotus atlanticus, although they suggested it might be a variant of Pterygotus anglicus Agassiz. An almost complete pterygotid recovered in 1994 from the Campbellton Formation at a new locality in Atholville, less than two kilometres west of Campbellton, has been identified as P. anglicus Agassiz. Like the specimens described by Clarke and Ruedemann, the material from the Natural History Museum, London is herein referred to P. anglicus. RÉSUMÉ La faune dévonienne de la Formation de Campbellton dans le Nord du Nouveau-Brunswick a été découverte en 1881 à l’emplacement classique de Campbellton. Environ une décennie plus tard, A. S. Woodward, du British Museum (Histoire naturelle) (maintenant le Natural History Museum de Londres) a fait l’acquisition de spécimens par l’entremise du négociant de fossiles R. F. Damon. Woodward a figuré parmi les premiers à décrire l’assemblage de poissons d’ostracodermes, d’arthrodires, d’acanthodiens et de chondrichthyens. Le musée a également fait en même temps l’acquisition de spécimens d’un euryptéridé ptérygotide de fortes dimensions. Même si les vertébrés ont bénéficié d’une attention considérable, les ptérygotides du Natural History Museum de Londres sont décrits aux présentes pour la première fois. Les premiers spécimens de ptérygotides recueillis en 1881 par la Commission géologique du Canada ont ultérieurement été identifiés par Clarke et Ruedemann en 1912 en tant que Pterygotus atlanticus, bien que les chercheurs aient avancé qu’il pourrait s’agir d’une variante du Pterygotus anglicus Agassiz. On a récupéré en 1994 un ptérygotide presque complet de la Formation de Campbellton dans un nouvel emplacement situé à Atholville, à moins de deux kilomètres à l’ouest de Campbellton, lequel a été identifié en tant que P. anglicus Agassiz. À l’instar des spécimens décrits par Clarke et Ruedemann, l’article du Natural History Museum de Londres est cité aux présentes à titre de P. anglicus.

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Reassessment of a mid-Palaeozoic vertebrate assemblage from Laúndos, Portugal

Burrow

2017

J Iber Geol

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PTERYGOTUS ANGLICUS AGASSIZ (CHELICERATA: EURYPTERIDA) FROM ATHOLVILLE, LOWER DEVONIAN CAMPBELLTON FORMATION, NEW BRUNSWICK, CANADA

Cited by 25 publications

References 42 publications

A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada

A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada

Nineteenth century collections of Pterygotus anglicus Agassiz (Chelicerata; Eurypterida) from the Campbellton Formation, New Brunswick, Canada

Reassessment of a mid-Palaeozoic vertebrate assemblage from Laúndos, Portugal

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