George O Poinar

Summary

Affiliation: Oregon State University
Country: USA

Publications

  1. ncbi request reprint Evidence of intestinal parasites of dinosaurs
    G Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasitology 133:245-9. 2006
  2. ncbi request reprint Evidence of mycoparasitism and hypermycoparasitism in Early Cretaceous amber
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Mycol Res 111:503-6. 2007
  3. ncbi request reprint One hundred million years of chemical warfare by insects
    G O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    J Chem Ecol 33:1663-9. 2007
  4. ncbi request reprint Bird's nest fungi (Nidulariales: Nidulariaceae) in Baltic and Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA Electronic address
    Fungal Biol 118:325-9. 2014
  5. pmc Parasitylenchus bifurcatus n. sp. (Tylenchida: Allantonematidae) parasitizing Harmonia axyridis (Coleoptera: Coccinellidae)
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasit Vectors 5:218. 2012
  6. doi request reprint Palaeontology: the 165-million-year itch
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Curr Biol 22:R278-80. 2012
  7. doi request reprint A fungal-like organism associated with a wasp (Hymenoptera: Pteromalidae) in Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331 2902, USA
    J Invertebr Pathol 110:132-4. 2012
  8. pmc Halophilanema prolata n. gen., n. sp. (Nematoda: Allantonematidae), a parasite of the intertidal bug, Saldula laticollis (Reuter)(Hemiptera: Saldidae) on the Oregon coast
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasit Vectors 5:24. 2012
  9. ncbi request reprint Mermithids (Nematoda: Mermithidae) of biting midges (Diptera: Ceratopogonidae): Heleidomermis cataloniensis n. sp. from Culicoides circumscriptus Kieffer in Spain and a species of Cretacimermis Poinar, 2001 from a ceratopogonid in Burmese amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 69:13-21. 2008
  10. ncbi request reprint Allomermis solenopsi n. sp. (Nematoda: Mermithidae) parasitising the fire ant Solenopsis invicta Buren (Hymenoptera: Formicidae) in Argentina
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 68:115-28. 2007

Detail Information

Publications39

  1. ncbi request reprint Evidence of intestinal parasites of dinosaurs
    G Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasitology 133:245-9. 2006
    ..These fossil parasite stages are described and their possible effect on dinosaurs discussed. These findings represent the earliest fossil records of protozoan and helminth parasites of terrestrial vertebrates...
  2. ncbi request reprint Evidence of mycoparasitism and hypermycoparasitism in Early Cretaceous amber
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Mycol Res 111:503-6. 2007
    ..sp. nov., which in turn is parasitized by the hyperparasite, Entropezites patricii gen. sp. nov. This discovery shows that sophisticated patterns of fungal parasitism were well developed some 100 Myrago...
  3. ncbi request reprint One hundred million years of chemical warfare by insects
    G O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    J Chem Ecol 33:1663-9. 2007
    ..This is the earliest fossil record of a putative chemical defense response and suggests that chemical defense mechanisms in beetles have been in existence for at least 100 Ma...
  4. ncbi request reprint Bird's nest fungi (Nidulariales: Nidulariaceae) in Baltic and Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA Electronic address
    Fungal Biol 118:325-9. 2014
    ..nov. are described from Cenozoic Baltic and Dominican amber. These are the first fossil members of the Family Nidulariaceae and show that the basic characteristics of this group were already established some 40-50 million years ago. ..
  5. pmc Parasitylenchus bifurcatus n. sp. (Tylenchida: Allantonematidae) parasitizing Harmonia axyridis (Coleoptera: Coccinellidae)
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasit Vectors 5:218. 2012
    ..A study of the natural enemies of H. axyridis in Denmark revealed the presence of nematodes. The present study describes this nematode parasite and discusses aspects of its development and ecology...
  6. doi request reprint Palaeontology: the 165-million-year itch
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Curr Biol 22:R278-80. 2012
    ..Possibly the oldest flea-like animals known, they provide a challenge to the functional morphologist to infer which animals they may have targeted...
  7. doi request reprint A fungal-like organism associated with a wasp (Hymenoptera: Pteromalidae) in Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331 2902, USA
    J Invertebr Pathol 110:132-4. 2012
    ..The fossil, which is characterized by its small size, somatic configuration, pteromalid host and presence in Dominican amber, cannot be placed with assurance in any extant fungal group at this time...
  8. pmc Halophilanema prolata n. gen., n. sp. (Nematoda: Allantonematidae), a parasite of the intertidal bug, Saldula laticollis (Reuter)(Hemiptera: Saldidae) on the Oregon coast
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasit Vectors 5:24. 2012
    ..This shore bug is adapted to an intertidal environment and can survive short periods of submergence during high tides. The present study describes the nematode parasite and discusses aspects of its development, ecology and evolution...
  9. ncbi request reprint Mermithids (Nematoda: Mermithidae) of biting midges (Diptera: Ceratopogonidae): Heleidomermis cataloniensis n. sp. from Culicoides circumscriptus Kieffer in Spain and a species of Cretacimermis Poinar, 2001 from a ceratopogonid in Burmese amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 69:13-21. 2008
    ....
  10. ncbi request reprint Allomermis solenopsi n. sp. (Nematoda: Mermithidae) parasitising the fire ant Solenopsis invicta Buren (Hymenoptera: Formicidae) in Argentina
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 68:115-28. 2007
    ..The possible life-cycle of the parasite is discussed, with the aim of using A. solenopsi as a biological control agent for fire ants in the United States...
  11. ncbi request reprint Early Cretaceous trypanosomatids associated with fossil sand fly larvae in Burmese amber
    George Poinar Jr
    Department of Zoology, Oregon State University, Corvallis, OR, 97331, USA
    Mem Inst Oswaldo Cruz 102:635-7. 2007
    ..At some point in time, specific genera were introduced into vertebrates, thus establishing a dixenous life cycle...
  12. ncbi request reprint Myrmeconema neotropicum n. g., n. sp., a new tetradonematid nematode parasitising South American populations of Cephalotes atratus (Hymenoptera: Formicidae), with the discovery of an apparent parasite-induced host morph
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR, 97331, USA
    Syst Parasitol 69:145-53. 2008
    ..As the female nematodes mature inside the worker ants, the host gasters change colour from black to red...
  13. pmc Lutzomyia adiketis sp. n. (Diptera: Phlebotomidae), a vector of Paleoleishmania neotropicum sp. n. (Kinetoplastida: Trypanosomatidae) in Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon, 97331, USA
    Parasit Vectors 1:22. 2008
    ..abstract:..
  14. ncbi request reprint Leptoconops nosopheris sp. n. (Diptera: Ceratopogonidae) and Paleotrypanosoma burmanicus gen. n., sp. n. (Kinetoplastida: Trypanosomatidae), a biting midge--trypanosome vector association from the Early Cretaceous
    George Poinar Jr
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Mem Inst Oswaldo Cruz 103:468-71. 2008
    ..These trypanosomes are described as Paleotrypanosoma burmanicus gen. n., sp. n., which represents the first fossil record of a Trypanosoma generic lineage...
  15. pmc Description of an early Cretaceous termite (Isoptera: Kalotermitidae) and its associated intestinal protozoa, with comments on their co-evolution
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon, 97331, USA
    Parasit Vectors 2:12. 2009
    ..abstract:..
  16. doi request reprint Halomonhystera parasitica n. sp. (Nematoda: Monhysteridae), a parasite of Talorchestia brito (Crustacea: Talitridae) in Portugal
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 75:53-8. 2010
    ..This is the first representative of the family Monhysteridae parasitic in the body-cavity of crustaceans. Approximately 48% of the amphipods examined contained various stages of H. parasitica...
  17. pmc Vetufebrus ovatus n. gen., n. sp. (Haemospororida: Plasmodiidae) vectored by a streblid bat fly (Diptera: Streblidae) in Dominican amber
    George O Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasit Vectors 4:229. 2011
    ..Members of the Nycteribiidae transmit bat malaria globally however extant streblids have never been implemented as vectors of bat malaria. The present study shows that during the Tertiary, streblids also were vectors of bat malaria...
  18. doi request reprint The first fossil streblid bat fly, Enischnomyia stegosoma n. g., n. sp. (Diptera: Hippoboscoidea: Streblidae)
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 81:79-86. 2012
    ..The possession of wings separates E. stegosoma from the species of Phalconomus, and the wing outline and venation, as well as the structure of the antennae and palps, distinguish it from species of Nycterophilia...
  19. ncbi request reprint Nematode (Nematoda: Mermithidae) and hairworm (Nematomorpha: Chordodidae) parasites in Early Cretaceous amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    J Invertebr Pathol 93:36-41. 2006
    ..A list of previously described fossil mermithids is included...
  20. ncbi request reprint Recent and fossil nematode parasites (Nematoda: Mermithidae) of neotropical ants
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    J Invertebr Pathol 91:19-26. 2006
    ....
  21. ncbi request reprint Paleohaemoproteus burmacis gen. n., sp. n. (Haemospororida: Plasmodiidae) from an Early Cretaceous biting midge (Diptera: Ceratopogonidae)
    G Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasitology 131:79-84. 2005
    ..Characters of the biting midge suggest that the host was a large, cold-blooded vertebrate. This is the earliest record of a malaria parasite and first indication that Early Cretaceous reptiles were infected with haemosporidial parasites...
  22. ncbi request reprint Behaviour and development of Elasmosoma sp. (Neoneurinae: Braconidae: Hymenoptera), an endoparasite of Formica ants (Formicidae: Hymenoptera)
    G Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Parasitology 128:521-31. 2004
    ..Observations on the percentage parasitism and altered behaviour of parasitized ants are presented. The association between neoneurine wasps and ants is a well-balanced system that has been in existence for at least 40 million years...
  23. ncbi request reprint Triatoma dominicana sp. n. (Hemiptera: Reduviidae: Triatominae), and Trypanosoma antiquus sp. n. (Stercoraria: Trypanosomatidae), the first fossil evidence of a triatomine-trypanosomatid vector association
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon 97331, USA
    Vector Borne Zoonotic Dis 5:72-81. 2005
    ..Based on these findings, it is possible that bats were the original vertebrate hosts of T. cruzi-like trypanosomes...
  24. ncbi request reprint Evidence of vector-borne disease of Early Cretaceous reptiles
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon 97331, USA
    Vector Borne Zoonotic Dis 4:281-4. 2004
    ..The significance of this find is discussed, especially regarding the high possibility that Cretaceous dinosaurs were infected by trypanosomatids...
  25. ncbi request reprint Paleoleishmania proterus n. gen., n. sp., (Trypanosomatidae: Kinetoplastida) from Cretaceous Burmese amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon 97331, USA
    Protist 155:305-10. 2004
    ..Paleoleishmania proterus is the first fossil kinetoplastid and provides a minimum age for the digenetic Trypanosomatidae. Its discovery indicates that vector-borne pathogens had been established by the Early Cretaceous...
  26. ncbi request reprint Metaparasitylenchus hypothenemi n. sp. (Nematoda: Allantonematidae), a parasite of the coffee berry borer, Hypothenemus hampei (Curculionidae: Scolytinae)
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon 97331, USA
    J Parasitol 90:1106-10. 2004
    ..Because the coffee berry borer is the most important pest of coffee throughout the world and this parasite partially or completely sterilizes female beetles, it is worthy of further investigation as a potential biological control agent...
  27. doi request reprint The oldest fossil evidence of animal parasitism by fungi supports a Cretaceous diversification of fungal-arthropod symbioses
    Gi Ho Sung
    Department of Botany and Plant Pathology, Oregon State University, 2082 Cordley Hall, Corvallis, OR 97331 2902, USA
    Mol Phylogenet Evol 49:495-502. 2008
    ....
  28. ncbi request reprint Plasmodium dominicana n. sp. (Plasmodiidae: Haemospororida) from Tertiary Dominican amber
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, Oregon 97331, USA
    Syst Parasitol 61:47-52. 2005
    ..It also supports earlier theories that some species of primate malaria could have evolved in the Americas...
  29. ncbi request reprint New fossil Stylops (Strepsiptera: Stylopidae) from Dominican amber
    Marcos Kogan
    Integrated Plant Protection Center, Dept of Horticulture, Oregon State Univ, Corvallis, Oregon 97331, USA
    Neotrop Entomol 39:227-34. 2010
    ..Existence of a fossil andrenid, Protandrena eickworti Rozen Jr, of the same Dominican amber, offers evidence of a potential host for this new species of Stylops...
  30. ncbi request reprint A non-gilled hymenomycete in Cretaceous amber
    George O Poinar
    Department of Entomology, Oregon State University, Corvallis, OR 97331, USA
    Mycol Res 107:763-8. 2003
    ..This is the first fossil record of the Aphyllophorales and establishes certain basic morphological and ecological characters for the group...
  31. ncbi request reprint Thaumamermis zealandica n sp (Mermithidae: Nematoda) parasitising the intertidal marine amphipod Talorchestia quoyana (Talitridae: Amphipoda) in New Zealand, with a summary of mermithids infecting amphipods
    George Poinar
    Department of Entomology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 53:227-33. 2002
    ..This is the first known marine host of a member of the family Mermithidae. Published records of mermithid nematodes from amphipods are presented...
  32. ncbi request reprint Elaeolenchus parthenonema n. g., n. sp. (Nematoda: Sphaerularioidea: Anandranematidae n. fam.) parasitic in the palm-pollinating weevil Elaeidobius kamerunicus Faust, with a phylogenetic synopsis of the Sphaerularioidea Lubbock, 1861
    George O Poinar
    Department of Entomology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 52:219-25. 2002
    ..This family is considered to have the most primitive type of development in the superfamily...
  33. ncbi request reprint Fossil evidence of insect pathogens
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    J Invertebr Pathol 89:243-50. 2005
    ..The flagellates in the Early Cretaceous biting midge represent the first fossil record of monogenetic trypanosomatid infections of arthropods...
  34. ncbi request reprint Coelomycetes in Dominican and Mexican amber
    George Poinar
    Department of Entomology, Oregon State University, Corvallis, Oregon 97331, USA
    Mycol Res 107:117-22. 2003
    ..Leptostromites ellipticus sp. nov. occurs on a dicot leaf in Dominican amber, and Leptothyrites dominicanus sp. nov. on a monocot (grass?) leaf in Dominican amber...
  35. ncbi request reprint A new genus of hard ticks in Cretaceous Burmese amber (Acari: Ixodida: Ixodidae)
    George Poinar
    Department of Entomology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 54:199-205. 2003
    ....
  36. ncbi request reprint Formicitylenchus oregonensis n. g., n. sp. (Allantonematidae: Nematoda), the first tylenchid parasite of ants, with a review of nematodes described from ants
    George Poinar
    Department of Zoology, Oregon State University, Corvallis, OR 97331, USA
    Syst Parasitol 56:69-76. 2003
    ..It is suggested that this case of tylenchid parasitism in ants is an example of environmental host selection. A review of the described nematode parasites of ants is presented...
  37. ncbi request reprint Amber: the organic gemstone
    Joseph B Lambert
    Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
    Acc Chem Res 35:628-36. 2002
    ..Based on spectral distinctions, fossil resin found in an archaeological context sometimes can be assigned to a specific geographical origin on the basis of its (13)C NMR spectrum...
  38. doi request reprint A new species of Phyllopsora (Lecanorales, lichen-forming Ascomycota) from Dominican amber, with remarks on the fossil history of lichens
    Jouko Rikkinen
    Department of Biological and Environmental Sciences, PO Box 65, University of Helsinki, FIN 00014 Helsinki, Finland
    J Exp Bot 59:1007-11. 2008
    ..The mycobiont hyphae formed apical and intercalary appressoria by pressing closely against the photobiont cells. This indicates that a conserved maintenance of structure is also seen in the fine details of the fungal-algal interface...
  39. ncbi request reprint First record of a Mermithidae (Nematoda) from the meloid beetle Meloe violaceus Marsham, 1802 (Coleoptera: Meloidae)
    Johannes Lückmann
    Institute of Ecology, University of Luneburg, Scharnhorststrasse 1, 21332 Lüneburg, Germany
    Parasitol Res 90:82-3. 2003
    ..A new record of nematode parasitism of meloid beetles is reported and all earlier records are summarised. Rates of parasitism could be influenced by the toxic compound cantharidin that these beetles possess...