The Evolutionary History of Nematodes

Poinar, George O.

doi:10.1163/9789047428664

Cited by 77 publications

(75 citation statements)

References 106 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Geological ages mentioned here are based on Gradstein et al (2012). Taxonomic groupings of nematode categories follow treatments of De Ley and Blaxter (2004), Eyualim-Abebe et al (2006) and Poinar (2011).…”

Section: Media For the Study Of Fossil Nematodes 21 Ambermentioning

confidence: 92%

“…The occurrence of parasitic nematodes in fossilized resin is frequently associated with the habits of their hosts, the great majority of which are forest living arthropods (cf. Poinar, 2011). The urge of parasitic nematodes to escape from hosts that become entrapped in tree resin, even if they have not completely finished their development, provides most of our fossil records of parasitic nematodes.…”

Section: Media For the Study Of Fossil Nematodes 21 Ambermentioning

confidence: 99%

“…However, in some fine-grained sedimentary deposits known as Lagerst€ atten, sclerotized parts such as onchia and spicules, and occasionally even portions of the alimentary and reproductive systems (Poinar, 2011) can be found.…”

Section: Rock Fossilsmentioning

confidence: 99%

“…A small population of the fungal-feeding aphelenchoidid, Cretaciaphelenchoides burmensis Poinar (2011), together with mycelium, provides the earliest record of mycetophagous nematodes. Adult males and females, as well as resistant juvenile stages were present.…”

Section: Parasitic Nematode Body Fossils From the Mesozoicmentioning

confidence: 99%

“…The Geological Record of Parasitic Nematode Evolution Entomopathogenic nematodes, for example those whose infective stages carry symbiotic bacteria in their gut and release them in a potential host, date back to the Early Cretaceous with Proheterorhabditis burmanica Poinar (2011) and its rove beetle (Staphylinidae) host in Burmese amber ( Figure 4). Rodshaped bacteria similar to those associated with extant species of Heterorhabditis occurred in the fossil rove beetle.…”

Section: Parasitic Nematode Body Fossils From the Mesozoicmentioning

confidence: 99%

See 4 more Smart Citations

The Geological Record of Parasitic Nematode Evolution

Poinar

2015

Advances in Parasitology

View full text Add to dashboard Cite

Section: Media For the Study Of Fossil Nematodes 21 Ambermentioning

confidence: 92%

Section: Media For the Study Of Fossil Nematodes 21 Ambermentioning

confidence: 99%

Section: Rock Fossilsmentioning

confidence: 99%

Section: Parasitic Nematode Body Fossils From the Mesozoicmentioning

confidence: 99%

Section: Parasitic Nematode Body Fossils From the Mesozoicmentioning

confidence: 99%

See 3 more Smart Citations

The Geological Record of Parasitic Nematode Evolution

Poinar

2015

Advances in Parasitology

View full text Add to dashboard Cite

Nematoda (Roundworms)

Poinar

2012

Encyclopedia of Life Sciences

View full text Add to dashboard Cite

The Nematoda are a group of nonsegmented worm‐like invertebrates that occur worldwide in a wide range of habitats, including fresh and salt waters, soil, plants and animals. They are one of the most abundant group of invertebrates on the face of the earth and rival the arthropods in biodiversity and species abundance. Their estimated numbers range from 1.5 billion in an upper 20 mm in 1.6 hectares of marine beach sand to 380 million in a square metre of leaf litter. Evidence from fossils and extant forms indicate that they evolved in the sea and came on land by probably moving up brackish estuaries into freshwater habitats. Although many of the plant parasites are considered pests and controlled with nematicides, other nematodes are important in controlling agricultural and medically important insect pests and still others have been used as experimental organisms in genetics. Key Concepts: Nematodes are the most successful group of the Ecdysoma, or pseudocoelomate bilateria. Nematodes are one of the most abundant groups of invertebrates. Some 20 000 nematode species have been described. Estimates for species diversity range from 100 000 to 10 million. Plant parasitic nematodes can be important agricultural pests. Many nematodes live in the bodies of humans and their pets.

show abstract

Nematoda (Roundworms)

Poinar¹

2020

Encyclopedia of Life Sciences

View full text Add to dashboard Cite

The Nematoda are a group of nonsegmented worm‐like invertebrates that occur worldwide in a wide range of habitats, including fresh and saltwaters, soil, plants and animals. They are one of the most abundant group of invertebrates on the face of the earth and rival the arthropods in biodiversity and species abundance. Their estimated numbers range from 1.5 billion in an upper 20 mm in 1.6 hectares of marine beach sand to 380 million in a square meter of leaf litter. Evidence from fossils and extant forms indicate that they evolved in the sea and came on land by probably moving up brackish estuaries into freshwater habitats. While many of the plant parasites are considered pests and controlled with nematicides, other nematodes are important in controlling agricultural and medically important insect pests, and still, others have been used as experimental model organisms in genetics. Key Concepts Nematodes are the most successful group of the Ecdysoma or pseudocoelomate bilateria. Nematodes are one of the most abundant groups of invertebrates. Some 22 000 nematode species have been described. Estimates for species diversity range from 100 000 to 10 million. Plant‐parasitic nematodes can be important agricultural pests. Many nematodes are parasites of invertebrates, humans and other vertebrates.

show abstract

The Evolutionary History of Nematodes

Cited by 77 publications

References 106 publications

The Geological Record of Parasitic Nematode Evolution

The Geological Record of Parasitic Nematode Evolution

Nematoda (Roundworms)

Nematoda (Roundworms)

Contact Info

Product

Resources

About