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Found 7 results

  1. A Eurypterid in San Diego?

    Found this artifact in Black's Beach, San Diego. Looks like a 6-ft scorpion. A Eurypterid maybe? I video and 3D scanned the find and sent it to The Nat and ROM (Toronto). Waiting for a response. Here are a few pictures. This ditch is likely to have been dug by the recent rains. Compare the size to my wrist watch: Closer look: Wavefront .obj file: Hit me up for high-res images, obj file, video, etc. Thanks!
  2. Hi we've found these fossils in buffalo ny and based only on google searches we see resemblance with eurepterids as well as straight shelled nautiloids. Any help would be greatly appreciated. The photos shown are all different fossils I have them labeled a through c to make identification discussions easier. Thankyou in advance, we're learning!
  3. Eurypterid hunt in NY

    My daughters and I went on what I thought would be a once in a lifetime hunt for Eurypterids over Memorial Day weekend this year. I wanted to share the bounty...18cm long 20 cm closeup of telson cool to get dorsal and ventral aspects of the prosoma, thanks to the plane of the conchoidal fracture
  4. Eurypterid

    The fossil itself measures about 8 cm long with a width of up to 4 cm (measurements listed in that section are of the rock itself. It is difficult to see but a small stub of an appendage is visible on the left side of the head.
  5. Sea Scorpion (Eurypterus lactustris)

    From the album Ancient Invertebrates

    410 mya | Devonian Williamsville "A" Formation Stevensville, Ontario 7.83 inches long
  6. Sea Scorpion (Eurypterus lactustris)

    From the album Ancient Invertebrates

    410 mya | Devonian Williamsville "A" Formation Stevensville, Ontario 7.83 inches long
  7. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since October 11, 2017. Subphylum Chelicerata Class Merostomata - Eurypterids and Xiphosurans Order Eurypterida - Sea Scorpions Suborder Eurypterina Braddy, S.J., R.J. Aldridge and J.N. Theron (1995). A New Eurypterid from the Late Ordovician Table Mountain Group, South Africa. Palaeontology, Vol.38, Part 3. Superfamily Adelophthalmoidea Family Adelophthalmidae Hannibal, J.T., et al. (2005). An Eurypterid (Adelophthalmus sp.) from a Plant-Rich Lacustrine Facies of Upper Pennsylvanian Strata in El Cobre Canyon, New Mexico.In: The Permian of Central New Mexico, Lucas, S.G., et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin No. 31. Lamsdell, J.C., L. Simonetto and P.A. Selden (2013). First Eurypterid from Italy: A New Species of Adelophthalmus (Chelicerata: Eurypterida) from the Upper Carboniferous of the Carnic Alps (Friuli, NE Italy). Revista Italiana di Paleontologia y Stratigrafia, 119(2). Miller, R.F., K. Kennedy and M.R. Gibling (2012). A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada. Atlantic Geology, Vol.48. Owens, R.M. and M.G. Bassett (1976). A Westphalian Eurypterid from South Wales. Palaeontology, Vol.19, Part 1. Poschmann, M. (2006). The Eurypterid Adelophthalmus sievertsi (Chelicerata: Eurypterida) from the Lower Devonian (Emsian) Klerf Formation of Willwerath, Germany. Palaeontology, Vol.49, Part 1. Tetlie, O.E. and M. Poschmann (2008). Phylogeny and Palaeoecology of the Adelophthalmoidea (Arthropoda; Chelicerata; Eurypterida). Journal of Systematic Palaeontology, 6(2). Tetlie, O.E. and P. Van Roy (2006). A reappraisal of Eurypterus dumonti Stainier, 1917 and its position within the Adelophthalmidae Tollerton, 1989. Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique, Sciences De La Terre, 76. Tetlie, O.E. and J.A. Dunlop (2005). A redescription of the Late Carboniferous eurypterids Adelophthalmus granosus von Meyer, 1853 and A. zadrai Pribyl, 1992. Mitt.Mus.Nat.kd.Berl., Geowiss., Vol.8. Wills, L.J. (1964). The Ventral Anatomy of the Upper Carboniferous Eurypterid Anthraconectes Meek and Worthen. Palaeontology, Vol.7, Part 3. Superfamily Eurypteroidea Lamsdell, J.C., I. Hosgor and P.A. Selden (2012). A new Ordovician eurypterid (Arthropoda: Chelicerata) from southeast Turkey: Evidence for a cryptic Ordovician record of Eurypterida. Gondwana Research, xxx (in Press). Family Dolichopteridae Tetlie, O.E. (2007). Like Father Like Son? Not Amongst the Eurypterids (Chelicerata) from Beartooth Butte, Wyoming. J.Paleont., 81(6). Family Erieopteridae Stumm, E.C. and E.N. Kjellesvig-Waering (1962). A New Eurypterid from the Upper Silurian of Southern Michigan. Contributions from the Museum of Paleontology - The University of Michigan, Vol.XVII, Number 7. Family Eurypteridae Andrews, H.E., et al. (1974). Growth and Variation in Eurypterus remipes DeKay. Bull.geol. Instn Univ. Uppsala: N.S. 4, 6. Braddy, S.J. and J.A. Dunlop (1997). The functional morphology of mating in the Silurian eurypterid, Baltoeurypterus tetragonophthalmus (Fischer, 1839). Zoological Journal of the Linnean Society, 121. Ehlers, G.M. (1935). A New Eurypterid from the Upper Devonian of Pennsylvania.Contributions from the Museum of Paleontology - The University of Michigan, Vol. IV, Number 18. Selden, P.A. (1981). Functional morphology of the prosoma of Baltoeurypterus tetragonophthalmus (Fischer) (Chelicerata: Eurypterida). Transactions of the Royal Society of Edinburgh: Earth Sciences, 72. Tetlie, O.E. (2006). Two new Silurian species of Eurypterus (Chelicerata: Eurypterida) from Norway and Canada and the phylogeny of the genus. Journal of Systematic Palaeontology, 4(4). Tetlie, O.E. (2002). A new Baltoeurypterus (Eurypterida: Chelicerata) from the Wenlock of Norway. Norwegian Journal of Geology, Vol.82. Tetlie, O.E. and I. Rabano (2007). Specimens of Eurypterus (Chelicerata, Eurypterida) in the collections of Museo Geominero (Geological Survey of Spain), Madrid. Boletin Geologico y Minero, 118(1). Superfamily Megalograptoidea Lamsdell, J.C., et al. (2015). The oldest described eurypterid: a giant Middle Ordovician (Darriwilian) megalograptid from the Winneshiek Lagerstätte of Iowa. BMC Evolutionary Biology, 15. Superfamily Mixopteroidea (Carcinosomatoidea) Braddy, S.J., P.A. Selden and D.N. Truong (2002). A New Carcinosomatid Eurypterid from the Upper Silurian of Northern Vietnam. Palaeontology, Vol.45, Part 5. Budil, P., Š. Manda and O.E. Tetlie (2014). Silurian carcinosomatid eurypterids from the Prague Basin (Czech Republic). Bulletin of Geosciences, 89(2). Dunlop, J.A. and J.C. Lamsdell (2012). Nomenclatural notes on the eurypterid family Carcinosomatidae. Zoosyst.Evol., 88(1). Superfamily Moselopteroidea Lamsdell, J.C. (2011). The Eurypterid Stoermeropterus conicus from the Lower Silurian of the Pentland Hills, Scotland. Monograph of the Palaeontographical Society. (48.05MB download) Superfamily Pterygotioidea Family Hughmilleriidae Tetlie, O.A., P.A. Selden and R. ###### (2007). A New Silurian Eurypterid (Arthropoda: Chelicerata) from China. Palaeontology, Vol.50, Part 3. Family Pterygotidae Anderson, R.P., et al. (2014). What big eyes you have: the ecological role of giant pterygotid eurypterids. Biology Letters, 10. Anderson, R.P., et al. (2014). What big eyes you have: the ecological role of giant pterygotid eurypterids - Electronic supplementary material . Biology Letters, 10. Braddy, S.J., M.Poschmann, and O.E. Tetlie (2008). Giant claw reveals the largest ever arthropod. Biology Letters, 4. Chlupáč, I. (1994). Pterygotid eurypterids (Arthropoda, Chelicerata) in the Silurian and Devonian of Bohemia. Journal of the Czech Geological Society, 39/2-3. Chlupáč, I., et al. (1997). Early Devonian eurypterids with Bohemian affinities from Catalonia (NE Spain). Batalleria, 7. Lamsdell, J.C. and D.A. Legg (2010). An Isolated Pterygotid Ramus (Chelicerata: Eurypterida) from the Devonian Beartooth Butte Formation, Wyoming. Journal of Paleontology, 84(6). Laub, R.S. and V.P. Tollerton (2010). The Cheliceral Claw of Acutiramus (Arthropoda: Eurypterida): Functional Analysis Based on Morphology and Engineering Principles. Bulletin of the Buffalo Society of Natural Sciences, Vol. 39. Lomax, D.L., J.C. Lamsdell and S.J. Ciurca (2011). A Collection of Eurypterids from the Silurian of Lesmahagow Collected Pre 1900. The Geological Curator, 9(6). McCoy, V.E., et al. (2015). All the better to see you with: eyes and claws reveal the evolution of divergent ecological roles in giant pterygotid eurypterids. Biol.Lett., 11. Miller, R.F. (1996). Note on Pterygotus anglicus Agassiz (Eurypterida: Devonian) from the Campbellton Formation, New Brunswick. Atlantic Geology, 32. Wang, B. and Z.K. Gai (2014). A sea scorpion claw from the Lower Devonian of China (Chelicerata: Eurypterida). Alcheringa, 38. Family Slimoniidae Lomax, D.L., J.C. Lamsdell and S.J. Ciurca (2011). A Collection of Eurypterids from the Silurian of Lesmahagow Collected Pre 1900. The Geological Curator, 9(6). McCoy, V.E., et al. (2015). All the better to see you with: eyes and claws reveal the evolution of divergent ecological roles in giant pterygotid eurypterids. Biol.Lett., 11. Waterston, C.D. (1960). The Median Abdominal Appendage of the Silurian Eurypterid Slimonia acuminata (Salter). Palaeontology, Vol.3, Part 3. General Pterygotioidea Selden, P.A. (1986). A New Identity for the Silurian Arthropod Necrogammarus. Palaeontology, Vol.29, Part 3. Superfamily Waeringopteroidea Dunlop, J.A., S.J. Braddy and E. Tetlie (2002). The Early Devonian eurypterid Grossopteris overathi (Gross, 1933) from Overath, Germany. Mitt.Mus.Nat.kd.Berl., Geowiss., Vol.5. Stott, C.A., et al. (2005). A New Eurypterid (Chelicerata) from the Upper Ordovician of Manitoulin Island, Ontario, Canada. J.Paleont., 79(6). General Eurypterina Tetlie, O.E. and M.B. Cuggy (2007). Phylogeny of the Basal Swimming Eurypterids (Chelicerata; Eurypterida; Eurypterina). Journal of Systematic Palaeontology, 5(3). Suborder Stylonurina Superfamily Hibbertopteroidea (=Mycteropoidea) Lamsdell, J.C. (2012). Redescription of Drepanopterus pentlandicus Laurie, 1892, the earliest known mycteropoid (Chelicerata: Eurypterida) from the early Silurian (Llandovery) of the Pentland Hills, Scotland. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 103. Lamsdell, J.C., S.J. Braddy and O.E. Tetlie (2009). Redescription of Drepanopterus abonensis (Chelicerata: Eurypterida: Stylonurina) from the Late Devonian of Portishead, UK. Palaeontology, Vol.52, Part 5. Selden, P.A., et al. (2005). The true identity of the supposed giant fossil spider Megarachne. Biol. Lett., 1. Superfamily Kokomopteroidea Tetlie, O.E. (2008). Hallipterus excelsior, a Stylonurid (Chelicerata: Eurypterida) from the Late Devonian Catskill Delta Complex and its Phylogenetic Position in the Hardieopteridae. Bulletin of the Peabody Museum of Natural History, 49(1). Superfamily Rhenopteroidea Poschmann, M. and O.E. Tetlie (2004). On the Emsian (Early Devonian) arthropods of the Rhenish Slate Mountains: 4. The eurypterids Alkenopterus and Vinetopterus n.gen. (Arthropoda: Chelicerata). Senkenbergiana lethaea, 84(1/2). Tetlie, O.E., L.I. Anderson and M. Poschmann (2007). Kiaeropterus (Eurypterida; Stylonurina) recognized from the Silurian of the Pentland Hills. Scottish Journal of Geology, 43(1). Tetlie, O.E., et al. (2004). A New Eurypterid (Chelicerata: Eurypterida) from the Upper Devonian Gogo Formation of Western Australia, With a Review of the Rhenopteridae. Palaeontology, Vol.47, Part 4. Superfamily Stylonuroidea Kjellesvig-Wareing, E.N. (1966). A Revision of the Families and Genera of the Stylonuracea (Eurypterida). Fieldiana Geology, Vol.14, Number 9. Tetlie, O.E., L.I. Anderson and M. Poschmann (2007). Kiaeropterus (Eurypterida, Stylourina) recognized from the Silurian of the Pentland Hills. Scottish Journal of Geology, 43(1). Waterston, C.D. (1962). Pagea sturrocki Gen. et Sp.Nov., A New Eurypterid from the Old Red Sandstone of Scotland. Palaeontology, Vol.5, Part 1. General Stylonurina Lamsdell, J.C., S.J. Braddy and O.E. Tetlie (2010). The systematics and phylogeny of the Stylonurina (Arthropoda: Chelicerata: Eurypterida). Journal of Systematic Palaeontology, Vol.8, Issue 1. Lamsdell, J.C., et al. (2010). Early Devonian stylonurine eurypterids from Arctic Canada. Can.J. Earth Sci., 47. General Eurypterids Braddy, S.J. (2001). Eurypterid palaeoecology: palaeobiological, ichnological and comparative evidence for a 'mass-moult-mate' hypothesis. Palaeogeography, Palaeoclimatology, Palaeoecology, 172. Braddy, S.J. and J.A. Dunlop (2000). Early Devonian eurypterids from the Northwest Territories of Arctic Canada. Can.J. Earth Sci., 37. Burkert, C. Environment preference of eurypterids - indications for freshwater adaptation? Institute of Geology, University of Mining and Technology, Freiberg, Germany. Ciurca, S.J. (2005). Trip B-4. Eurypterids and Facies Changes Within Silurian/Devonian 'Eurypterid Beds' of New York State. New York State Geological Association 77th Annual Meeting, Oswego, NY. Clarke, J.M. and R. Ruedemann (1912). The Eurypterida of New York. Vol. I - Text. New York State Museum, Memoir 14. (Read on-line only or download individual pages.) Clarke, J.M. and R. Ruedemann (1912). The Eurypterida of New York. Vol. II - Plates. New York State Museum, Memoir 14. (Read on-line only or download individual pages.) Kjellesvig-Waering, E.N. (1963). Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois. Eurypterids. Fieldiana: Geology, Vol.12, Number 6. Kjellesvig-Waering, E.N. (1961). Eurypterids of the Devonian Holland Quarry Shale of Ohio. Fieldiana: Geology, Vol.14, Number 5. Lau, K. (2009). Paleoecology and Paleobiogeography of the New York Appalachian Basin Eurypterids. Senior Thesis - Yale University. Lamsdell, J.C. and P.A. Selden (2017). From success to persistence: Identifying an evolutionary regime shift in the diverse Paleozoic aquatic arthropod group Eurypterida, driven by the Devonian biotic crisis. Evolution, 71-1. Lamsdell, J.C. and P.A. Selden (2013). Babes in the wood - a unique window into sea scorpion ontogeny. BMC Evolutionary Biology, 13. Manning, P.L. and J.A. Dunlop (1995). The Respiratory Organs of Eurypterids. Palaeontology, Vol.38, Number 2. Moelling, L.I. (2013). Eurypterid Paleoecology: Characterization and Analysis of a Late Silurian Shallow Marine Fossil Assemblage from Southern Ontario, Canada. Senior Honors Thesis - The University of Utah. Selden, P.A. Autecology of Silurian Eurypterids. Special Papers in Palaeontology, Number 32. Selden, P.A. (1985). Eurypterid respiration. Phil.Trans.R.Soc.Lond.B., 309. Størmer, L. Eurypterid Remains from the Ludlow Zone 9d of Ringerike. Norsk Geologisk Tidsskrift, 14. Tetlie, O.E. (2007). Distribution and dispersal history of Eurypterida (Chelicerata). Palaeogeography, Palaeoclimatology, Palaeoecology, 252. Tetlie, O.E., D.S. Brandt and D.E.G. Briggs (2008). Ecdysis in sea scorpions (Chelicerata: Eurypterida). Palaeogeography, Palaeoclimatology, Palaeoecology, 265. Tollerton, V.P. (1989). Morphology, Taxonomy and Classification of the Order Eurypterida Burmeister, 1843. Journal of Paleontology, Vol.63, Number 5. Vrazo, M.B. (2016). Stratigraphic and Paleoecological Controls on Eurypterid Lagerstätten in the Mid-Paleozoic. Ph.D. Dissertation - University of Cincinnatti. (260 pages) Vrazo, M.B. and S.J. Braddy (2011). Testing the 'mass-moult-mate' hypothesis of eurypterid palaeoecology. Palaeogeography, Palaeoclimatology, Palaeoecology, 311. Vrazo, M.B., C.E. Brett and S.J. Ciurca (2017). Paleoecological and stratigraphic controls on eurypterid Lagerstätten: a model for preservation in the mid-Paleozoic. Paleobiology, 43(3). Vrazo, M.B., C.E. Brett and S.J. Ciurca (2016). Buried or brined? Eurypterids and evaporites in the Silurian Appalachian basin. Palaeogeography, Palaeoclimatology, Palaeoecology, 444.Vrazo, M.B., J.M. Trop and C.E. Brett (2014). A New Eurypterid Lagerstätte from the Upper Silurian of Pennsylvania. Palaios, Vol.29. Order Xiphosura - Horseshoe Crabs Suborder Synziphosurida Anderson, L.I. and R.A. Moore (2004). Bembicosoma re-examined: a xiphosuran from the Silurian of the North Esk Inlier, Pentland Hills, Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 94. Briggs, D.E.G., et al. (2012). Silurian horseshoe crab illuminates the evolution of arthropod limbs. PNAS, Vol.109, Number 39. Eldredge, N. (1974). Revision of the Suborder Synziphosurina (Chelicerata, Merostomata), With Remarks on Merostome Phylogeny. American Museum Novitates, Number 2543. Krzeminski, W., E. Krzeminska, and D. Wojciechowski (2010). Silurian synziphosurine horseshoe crab Pasternakevia revisited. Acta Palaeontologica Polonica, 55(1). Lamsdell, J.C., J. Xue and P.A. Selden (2013). A horseshoe crab (Arthropoda: Chelicerata: Xiphosura) from the Lower Devonian (Lochkovian) of Yunnan, China. Geol.Mag., 150(2). Moore, R.A., S.C. McKenzie and B.S. Leiberman (2007). A Carboniferous Synziphosurine (Xiphosura) from the Bear Gulch Limestone, Montana, USA. Palaeontology, Vol.50, Part 4. Moore, R.A., et al. (2005). A New Synziphosurine (Chelicerata: Xiphosurida) from the Late Llandovery (Silurian) Waukesha Lagerstatte, Wisconsin, USA. J.Paleont., 79(2). Suborder Xiphosurida Anderson, L.I. and C. Horrocks (1995). Valloisella lievinensis Racheboeuf, 1992 (Chelicerata; Xiphosura) from the Westphalian B of England. N.Jb.Geol.Palaont.Mh., Vol.11. Babcock, L.E. and D.F. Merriam (2000). Horseshoe Crabs (Arthropoda: Xiphosurida) from the Pennsylvanian of Kansas and Elsewhere. Transactions of the Kansas Academy of Science, 103(1-2). Babcock, L.E., D.F. Merriam, and R.R. West (2000). 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