Pterygotus (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pterygotus" in English language version.

refsWebsite

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24doi.org

2^nd place

12harvard.edu

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10paleobiodb.org

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8,479^th place

9worldcat.org

5^th place

9semanticscholar.org

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9nih.gov

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5researchgate.net

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5jstor.org

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3web.archive.org

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3biodiversitylibrary.org

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3zenodo.org

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1royalsocietypublishing.org

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1fossilinsects.net

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1wikisource.org

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1archive.org

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1nmbe.ch

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1cambridge.org

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1sciencedirect.com

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1jgeosci.org

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1zobodat.at

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1lyellcollection.org

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1cuni.cz

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1jncc.gov.uk

low place

1unb.ca

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1fossilworks.org

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archive.org (Global: 6^th place; English: 6^th place)

Murchison, Roderick Impey (1839). The Silurian System, Founded on Geological Researches in the Counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth, Gloucester, Worcester, and Stafford: With Descriptions of the Coalfields and Overlying Formations. Albemarle Street. p. 606. Note that this work incorrectly translates Pterygotus as "winged fish", but there is no "fish" element in the name.

biodiversitylibrary.org (Global: 387^th place; English: 373^rd place)

Kjellesvig-Waering, Erik N. (1961). "Eurypterids of the Devonian Holland Quarry shale of Ohio". Fieldiana Geology. 14: 79–98.
Dawson, John W. (1871). "Pre-Carboniferous Plants". The Fossil Plants of the Devonian and Upper Silurian Formations of Canada. Geological Survey of Canada. p. 65. doi:10.5962/bhl.title.38239. ISBN 978-0665059063. {{cite book}}: ISBN / Date incompatibility (help)
Ruedemann, Rudolf (1921). "A recurrent Pittsford (Salina) fauna". New York State Museum Bulletin: 205–222.

cambridge.org (Global: 305^th place; English: 264^th place)

Ciurca, Samuel J.; Tetlie, O. Erik (2007). "Pterygotids (Chelicerata; Eurypterida) from the Silurian Vernon Formation of New York". Journal of Paleontology. 81 (4): 725–736. doi:10.1666/pleo0022-3360(2007)081[0725:PEFTSV]2.0.CO;2. ISSN 0022-3360. S2CID 140668235.

cuni.cz (Global: 3,645^th place; English: 6,045^th place)

petrol.natur.cuni.cz

Chlupáč, Ivo (1994). "Pterygotid eurypterids (Arthropoda, Chelicerata) in the Silurian and Devonian of Bohemia" (PDF). Journal of the Czech Geological Society. 39/2-3: 147–162. Archived from the original (PDF) on 27 February 2018. Retrieved 12 May 2018.

doi.org (Global: 2^nd place; English: 2^nd place)

Braddy, Simon J.; Poschmann, Markus; Tetlie, O. Erik (2007). "Giant claw reveals the largest ever arthropod". Biology Letters. 4 (1): 106–109. doi:10.1098/rsbl.2007.0491. PMC 2412931. PMID 18029297.
Lamsdell, James C.; Braddy, Simon J. (2009). "Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters. 6 (2): 265–269. doi:10.1098/rsbl.2009.0700. ISSN 1744-9561. PMC 2865068. PMID 19828493. Supplemental material.
Tetlie, O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)" (PDF). Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4): 557–574. Bibcode:2007PPP...252..557T. doi:10.1016/j.palaeo.2007.05.011. Archived from the original (PDF) on 18 July 2011.
Plotnick, Roy E.; Baumiller, Tomasz K. (1988). "The pterygotid telson as a biological rudder". Lethaia. 21 (1): 13–27. Bibcode:1988Letha..21...13P. doi:10.1111/j.1502-3931.1988.tb01746.x.
M'Coy, Frederick (2009). "XLI.—On the classification of some British fossil Crustacea, with notices of new forms in the University Collection at Cambridge". Annals and Magazine of Natural History. 4 (24): 392–414. doi:10.1080/03745486009494858.
Miller, Randall F. (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbelltown Formation, New Brunswick, Canada". Palaeontology. 50 (4): 981–999. Bibcode:2007Palgy..50..981M. doi:10.1111/j.1475-4983.2007.00683.x. ISSN 1475-4983.
Lockwood, S (1870). "The Horse Foot Crab". The American Naturalist. 4 (5): 257–274. doi:10.1086/270576. S2CID 83630563.
Ciurca, Samuel J.; Tetlie, O. Erik (2007). "Pterygotids (Chelicerata; Eurypterida) from the Silurian Vernon Formation of New York". Journal of Paleontology. 81 (4): 725–736. doi:10.1666/pleo0022-3360(2007)081[0725:PEFTSV]2.0.CO;2. ISSN 0022-3360. S2CID 140668235.
Tetlie, O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)". Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4): 557–574. Bibcode:2007PPP...252..557T. doi:10.1016/j.palaeo.2007.05.011. ISSN 0031-0182.
McCoy, Frederick (1899). "I.—Note on a New Australian Pterygotus". Geological Magazine. 6 (5): 193–194. Bibcode:1899GeoM....6..193M. doi:10.1017/S0016756800143249. ISSN 1469-5081. S2CID 129564855.
Bicknell, Russell D. C.; Smith, Patrick M.; Poschmann, Markus (2020). "Re-evaluating evidence of Australian eurypterids". Gondwana Research. 86: 164–181. Bibcode:2020GondR..86..164B. doi:10.1016/j.gr.2020.06.002. S2CID 225748023.
Olive, Sébastien; Pradel, Alan; Martinez-Pérez, Carlos; Janvier, Philippe; Lamsdell, James C.; Gueriau, Pierre; Rabet, Nicolas; Duranleau-Gagnon, Philippe; Cardenas-Rozo, Andres L.; Zapata Ramirez, Paula A.; Botella, Héctor (2019). "New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)". Journal of Vertebrate Paleontology. 39 (3): e1620247. Bibcode:2019JVPal..39E0247O. doi:10.1080/02724634.2019.1620247. hdl:10784/26939. S2CID 198237241.{{cite journal}}: CS1 maint: article number as page number (link)
D. Waterston, Charles (1964). "II.—Observations on Pterygotid Eurypterids". Transactions of the Royal Society of Edinburgh. 66 (2): 9–33. doi:10.1017/S0080456800023309. S2CID 130261793.
Tetlie, O. Erik; Briggs, Derek E. G. (2009). "The origin of pterygotid eurypterids (Chelicerata: Eurypterida)". Palaeontology. 52 (5): 1141–1148. Bibcode:2009Palgy..52.1141T. doi:10.1111/j.1475-4983.2009.00907.x. ISSN 1475-4983.
Dunlop, Jason; Erik Tetlie, O (2006). "Embrik Strand's eurypterids". Neues Jahrbuch für Geologie und Paläontologie, Monatshefte. 2006 (11): 696–704. doi:10.1127/njgpm/2006/2006/696.
Griffing, David H.; Bridge, John S.; Hotton, Carol L. (2000). "Coastal-fluvial palaeoenvironments and plant palaeoecology of the Lower Devonian (Emsian), Gaspé Bay, Québec, Canada". Geological Society, London, Special Publications. 180 (1): 61–84. Bibcode:2000GSLSP.180...61G. doi:10.1144/GSL.SP.2000.180.01.05. ISSN 0305-8719. S2CID 129630806.
F. Miller, Randall (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbellton Formation, New Brunswick, Canada". Palaeontology. 50 (4): 981–999. Bibcode:2007Palgy..50..981M. doi:10.1111/j.1475-4983.2007.00683.x.
Dawson, John W. (1871). "Pre-Carboniferous Plants". The Fossil Plants of the Devonian and Upper Silurian Formations of Canada. Geological Survey of Canada. p. 65. doi:10.5962/bhl.title.38239. ISBN 978-0665059063. {{cite book}}: ISBN / Date incompatibility (help)
Whiteaves, J. F. (1899). "The Devonian System in Canada". Science. New Series. 10 (247): 402–412. Bibcode:1899Sci....10..402W. doi:10.1126/science.10.247.402. JSTOR 1625781. PMID 17751574.
Kaiser, Alexander; Klok, Jaco (2008). "Do giant claws mean giant bodies? An alternative view on exaggerated scaling relationships". Biology Letters. 4 (3): 279–280. doi:10.1098/rsbl.2008.0015. PMC 2610042. PMID 18353748.
Lamsdell, James C.; Legg, David A. (2010). "An isolated pterygotid ramus (Chelicerata: Eurypterida) from the Devonian Beartooth Butte Formation, Wyoming". Journal of Paleontology. 84 (6): 1206–1208. Bibcode:2010JPal...84.1206L. doi:10.1666/10-040.1. S2CID 129807060.
Gould, Gina C.; MacFadden, Bruce J. (2004). "Chapter 17: Gigantism, Dwarfism, and Cope's Rule: "Nothing in Evolution Makes Sense without a Phylogeny"". Bulletin of the American Museum of Natural History. 285: 219–237. doi:10.1206/0003-0090(2004)285<0219:c>2.0.co;2. S2CID 73556985.
McCoy, Victoria E.; Lamsdell, James C.; Poschmann, Markus; Anderson, Ross P.; Briggs, Derek E. G. (2015). "All the better to see you with: eyes and claws reveal the evolution of divergent ecological roles in giant pterygotid eurypterids". Biology Letters. 11 (8): 20150564. doi:10.1098/rsbl.2015.0564. PMC 4571687. PMID 26289442.{{cite journal}}: CS1 maint: article number as page number (link)
Miller, Randall F. (2007). "Nineteenth century collections of Pterygotus anglicus Agassiz (Chelicerata; Eurypterida) from the Campbellton Formation, New Brunswick, Canada". Atlantic Geology. 43: 197–209. doi:10.4138/5649. ISSN 2564-2987.

fossilinsects.net (Global: low place; English: low place)

Tetlie, O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)" (PDF). Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4): 557–574. Bibcode:2007PPP...252..557T. doi:10.1016/j.palaeo.2007.05.011. Archived from the original (PDF) on 18 July 2011.

fossilworks.org (Global: 3,343^rd place; English: 2,752^nd place)

"Fossilworks: Eurypterids of the Melbourne Group, ?Dargile Formation, at Melbourne (Silurian of Australia)". fossilworks.org. Archived from the original on 20 July 2023. Retrieved 27 February 2018.

handle.net (Global: 102^nd place; English: 76^th place)

hdl.handle.net

Olive, Sébastien; Pradel, Alan; Martinez-Pérez, Carlos; Janvier, Philippe; Lamsdell, James C.; Gueriau, Pierre; Rabet, Nicolas; Duranleau-Gagnon, Philippe; Cardenas-Rozo, Andres L.; Zapata Ramirez, Paula A.; Botella, Héctor (2019). "New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)". Journal of Vertebrate Paleontology. 39 (3): e1620247. Bibcode:2019JVPal..39E0247O. doi:10.1080/02724634.2019.1620247. hdl:10784/26939. S2CID 198237241.{{cite journal}}: CS1 maint: article number as page number (link)

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Tetlie, O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)" (PDF). Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4): 557–574. Bibcode:2007PPP...252..557T. doi:10.1016/j.palaeo.2007.05.011. Archived from the original (PDF) on 18 July 2011.
Plotnick, Roy E.; Baumiller, Tomasz K. (1988). "The pterygotid telson as a biological rudder". Lethaia. 21 (1): 13–27. Bibcode:1988Letha..21...13P. doi:10.1111/j.1502-3931.1988.tb01746.x.
Miller, Randall F. (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbelltown Formation, New Brunswick, Canada". Palaeontology. 50 (4): 981–999. Bibcode:2007Palgy..50..981M. doi:10.1111/j.1475-4983.2007.00683.x. ISSN 1475-4983.
Tetlie, O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)". Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4): 557–574. Bibcode:2007PPP...252..557T. doi:10.1016/j.palaeo.2007.05.011. ISSN 0031-0182.
McCoy, Frederick (1899). "I.—Note on a New Australian Pterygotus". Geological Magazine. 6 (5): 193–194. Bibcode:1899GeoM....6..193M. doi:10.1017/S0016756800143249. ISSN 1469-5081. S2CID 129564855.
Bicknell, Russell D. C.; Smith, Patrick M.; Poschmann, Markus (2020). "Re-evaluating evidence of Australian eurypterids". Gondwana Research. 86: 164–181. Bibcode:2020GondR..86..164B. doi:10.1016/j.gr.2020.06.002. S2CID 225748023.
Olive, Sébastien; Pradel, Alan; Martinez-Pérez, Carlos; Janvier, Philippe; Lamsdell, James C.; Gueriau, Pierre; Rabet, Nicolas; Duranleau-Gagnon, Philippe; Cardenas-Rozo, Andres L.; Zapata Ramirez, Paula A.; Botella, Héctor (2019). "New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)". Journal of Vertebrate Paleontology. 39 (3): e1620247. Bibcode:2019JVPal..39E0247O. doi:10.1080/02724634.2019.1620247. hdl:10784/26939. S2CID 198237241.{{cite journal}}: CS1 maint: article number as page number (link)
Tetlie, O. Erik; Briggs, Derek E. G. (2009). "The origin of pterygotid eurypterids (Chelicerata: Eurypterida)". Palaeontology. 52 (5): 1141–1148. Bibcode:2009Palgy..52.1141T. doi:10.1111/j.1475-4983.2009.00907.x. ISSN 1475-4983.
Griffing, David H.; Bridge, John S.; Hotton, Carol L. (2000). "Coastal-fluvial palaeoenvironments and plant palaeoecology of the Lower Devonian (Emsian), Gaspé Bay, Québec, Canada". Geological Society, London, Special Publications. 180 (1): 61–84. Bibcode:2000GSLSP.180...61G. doi:10.1144/GSL.SP.2000.180.01.05. ISSN 0305-8719. S2CID 129630806.
F. Miller, Randall (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbellton Formation, New Brunswick, Canada". Palaeontology. 50 (4): 981–999. Bibcode:2007Palgy..50..981M. doi:10.1111/j.1475-4983.2007.00683.x.
Whiteaves, J. F. (1899). "The Devonian System in Canada". Science. New Series. 10 (247): 402–412. Bibcode:1899Sci....10..402W. doi:10.1126/science.10.247.402. JSTOR 1625781. PMID 17751574.
Lamsdell, James C.; Legg, David A. (2010). "An isolated pterygotid ramus (Chelicerata: Eurypterida) from the Devonian Beartooth Butte Formation, Wyoming". Journal of Paleontology. 84 (6): 1206–1208. Bibcode:2010JPal...84.1206L. doi:10.1666/10-040.1. S2CID 129807060.

jgeosci.org (Global: low place; English: low place)

Chlupac, Ivo (1994). "Pterygotid eurypterids (Arthropoda, Chelicerata) in the Silurian and Devonian of Bohemia". Journal of the Czech Geological Society. 39 (2–3). ISSN 1802-6222.

jncc.gov.uk (Global: low place; English: low place)

hub.jncc.gov.uk

"The Old Red Sandstone of Great Britain (Geological Conservation Review Series No. 31) | JNCC Resource Hub". hub.jncc.gov.uk. Retrieved 20 August 2023.

jstor.org (Global: 26^th place; English: 20^th place)

Kjellesvig-Waering, Erik N. (1964). "A Synopsis of the Family Pterygotidae Clarke and Ruedemann, 1912 (Eurypterida)". Journal of Paleontology. 38 (2): 331–361. JSTOR 1301554.
Kjellesvig-Waering, Erik N. (1964). "A Synopsis of the Family Pterygotidae Clarke and Ruedemann, 1912 (Eurypterida)". Journal of Paleontology. 38 (2): 331–361. JSTOR 1301554.
Kjellesvig-Waering, Erik N. (1961). "The Silurian Eurypterida of the Welsh Borderland". Journal of Paleontology. 35 (4): 789–835. JSTOR 1301214.
Whiteaves, J. F. (1899). "The Devonian System in Canada". Science. New Series. 10 (247): 402–412. Bibcode:1899Sci....10..402W. doi:10.1126/science.10.247.402. JSTOR 1625781. PMID 17751574.
Kjellesvig-Waering, Erik N. (1950). "A New Silurian Eurypterid from Florida". Journal of Paleontology. 24 (2): 229–231. JSTOR 1299504.

lyellcollection.org (Global: 6,584^th place; English: 4,241^st place)

sp.lyellcollection.org

Griffing, David H.; Bridge, John S.; Hotton, Carol L. (2000). "Coastal-fluvial palaeoenvironments and plant palaeoecology of the Lower Devonian (Emsian), Gaspé Bay, Québec, Canada". Geological Society, London, Special Publications. 180 (1): 61–84. Bibcode:2000GSLSP.180...61G. doi:10.1144/GSL.SP.2000.180.01.05. ISSN 0305-8719. S2CID 129630806.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

Braddy, Simon J.; Poschmann, Markus; Tetlie, O. Erik (2007). "Giant claw reveals the largest ever arthropod". Biology Letters. 4 (1): 106–109. doi:10.1098/rsbl.2007.0491. PMC 2412931. PMID 18029297.
Lamsdell, James C.; Braddy, Simon J. (2009). "Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters. 6 (2): 265–269. doi:10.1098/rsbl.2009.0700. ISSN 1744-9561. PMC 2865068. PMID 19828493. Supplemental material.
Whiteaves, J. F. (1899). "The Devonian System in Canada". Science. New Series. 10 (247): 402–412. Bibcode:1899Sci....10..402W. doi:10.1126/science.10.247.402. JSTOR 1625781. PMID 17751574.
Kaiser, Alexander; Klok, Jaco (2008). "Do giant claws mean giant bodies? An alternative view on exaggerated scaling relationships". Biology Letters. 4 (3): 279–280. doi:10.1098/rsbl.2008.0015. PMC 2610042. PMID 18353748.
McCoy, Victoria E.; Lamsdell, James C.; Poschmann, Markus; Anderson, Ross P.; Briggs, Derek E. G. (2015). "All the better to see you with: eyes and claws reveal the evolution of divergent ecological roles in giant pterygotid eurypterids". Biology Letters. 11 (8): 20150564. doi:10.1098/rsbl.2015.0564. PMC 4571687. PMID 26289442.{{cite journal}}: CS1 maint: article number as page number (link)

ncbi.nlm.nih.gov

Braddy, Simon J.; Poschmann, Markus; Tetlie, O. Erik (2007). "Giant claw reveals the largest ever arthropod". Biology Letters. 4 (1): 106–109. doi:10.1098/rsbl.2007.0491. PMC 2412931. PMID 18029297.
Lamsdell, James C.; Braddy, Simon J. (2009). "Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters. 6 (2): 265–269. doi:10.1098/rsbl.2009.0700. ISSN 1744-9561. PMC 2865068. PMID 19828493. Supplemental material.
Kaiser, Alexander; Klok, Jaco (2008). "Do giant claws mean giant bodies? An alternative view on exaggerated scaling relationships". Biology Letters. 4 (3): 279–280. doi:10.1098/rsbl.2008.0015. PMC 2610042. PMID 18353748.
McCoy, Victoria E.; Lamsdell, James C.; Poschmann, Markus; Anderson, Ross P.; Briggs, Derek E. G. (2015). "All the better to see you with: eyes and claws reveal the evolution of divergent ecological roles in giant pterygotid eurypterids". Biology Letters. 11 (8): 20150564. doi:10.1098/rsbl.2015.0564. PMC 4571687. PMID 26289442.{{cite journal}}: CS1 maint: article number as page number (link)

nmbe.ch (Global: 2,178^th place; English: 1,554^th place)

wsc.nmbe.ch

Dunlop, J. A., Penney, D. & Jekel, D. 2018. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern

paleobiodb.org (Global: 4,533^rd place; English: 8,479^th place)

"Dargile Formation, Winneke Reservoir Site (Silurian of Australia)". fossilworks.org. Retrieved 27 July 2018.
"Eurypterid-Associated Biota of the Rootsikula Horizon, Saaremaa, Estonia: Rootsikula, Estonia". Paleobiology Database. Retrieved 27 July 2018.
"Eurypterid-Associated Biota of the Pittsford Shale, Pittsford, New York: Ludlow, New York". Paleobiology Database. Retrieved 27 July 2018.
"Platy limestone-shale facies, Upper Pridolian, Barrandian S-D boundary section: Pridoli, Czech Republic". Paleobiology Database. Retrieved 27 July 2018.
"Eurypterus remipes tetragonopthalmus Community, Ustje subsuite, Podolia (Silurian of Ukraine)". Paleobiology Database. Retrieved 27 July 2018.
"Eurypterid-Associated Biota of the Chortkov Horizon in Podolia (Devonian of Ukraine)". Paleobiology Database. Retrieved 27 July 2018.
"Eurypterids of the Keefer Sst. Mbr, Mifflintown Fmn., Hancock, Maryland: Wenlock, Maryland". Paleobiology Database. Retrieved 27 July 2018.
"Eurypterid-Associated Biota of the Ledbury Formation, Ewyas Harold, England: Pridoli, United Kingdom". Paleobiology Database. Retrieved 27 July 2018.
"Sun Oil Co. well, Core 44 (3552–3568 feet): Lochkovian, Florida". Paleobiology Database. Retrieved 27 July 2018.
"Gaspe community, Gaspe Sandstone (Devonian of Canada)". Paleobiology Database. Retrieved 27 July 2018.

researchgate.net (Global: 120^th place; English: 125^th place)

Lamsdell, James C.; Braddy, Simon J. (2009). "Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters. 6 (2): 265–269. doi:10.1098/rsbl.2009.0700. ISSN 1744-9561. PMC 2865068. PMID 19828493. Supplemental material.
Olive, Sébastien; Pradel, Alan; Martinez-Pérez, Carlos; Janvier, Philippe; Lamsdell, James C.; Gueriau, Pierre; Rabet, Nicolas; Duranleau-Gagnon, Philippe; Cardenas-Rozo, Andres L.; Zapata Ramirez, Paula A.; Botella, Héctor (2019). "New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)". Journal of Vertebrate Paleontology. 39 (3): e1620247. Bibcode:2019JVPal..39E0247O. doi:10.1080/02724634.2019.1620247. hdl:10784/26939. S2CID 198237241.{{cite journal}}: CS1 maint: article number as page number (link)
D. Waterston, Charles (1964). "II.—Observations on Pterygotid Eurypterids". Transactions of the Royal Society of Edinburgh. 66 (2): 9–33. doi:10.1017/S0080456800023309. S2CID 130261793.
Dunlop, Jason; Erik Tetlie, O (2006). "Embrik Strand's eurypterids". Neues Jahrbuch für Geologie und Paläontologie, Monatshefte. 2006 (11): 696–704. doi:10.1127/njgpm/2006/2006/696.
F. Miller, Randall (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbellton Formation, New Brunswick, Canada". Palaeontology. 50 (4): 981–999. Bibcode:2007Palgy..50..981M. doi:10.1111/j.1475-4983.2007.00683.x.

royalsocietypublishing.org (Global: 1,993^rd place; English: 3,231^st place)

Lamsdell, James C.; Braddy, Simon J. (2009). "Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters. 6 (2): 265–269. doi:10.1098/rsbl.2009.0700. ISSN 1744-9561. PMC 2865068. PMID 19828493. Supplemental material.

sciencedirect.com (Global: 149^th place; English: 178^th place)

Bicknell, Russell D. C.; Smith, Patrick M.; Poschmann, Markus (2020). "Re-evaluating evidence of Australian eurypterids". Gondwana Research. 86: 164–181. Bibcode:2020GondR..86..164B. doi:10.1016/j.gr.2020.06.002. S2CID 225748023.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Lockwood, S (1870). "The Horse Foot Crab". The American Naturalist. 4 (5): 257–274. doi:10.1086/270576. S2CID 83630563.
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Pterygotus (English Wikipedia)

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