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Toxocara cati 2 beentree.jpg
Toxocara cati
Scientific classification e
Kingdom: Animalia
Phylum: Nematoda
Class: Chromadorea
Order: Ascaridida
Family: Ascarididae
Baird, 1853

The Ascarididae are a family of the large intestinal roundworms. Members of the family are intestinal parasites, infecting all classes of vertebrates.[1][2] It includes a number of genera,[3] the most well known of which are:

Ascaris lumbricoides is the main ascarid parasite of humans, causing Ascariasis.


  1. ^ Okulewicz A, Lonc E (2001). "New/old opinions on the systematics and phylogenesis of the nematodes, with the special regard to Ascaridida, Ascaridoidea". Wiad Parazytol. 47 (3): 263–268. PMID 16894732. 
  2. ^ Nadler SA, Carreno RA, Mejia-Madrid H, Ullberg J, Pagan C, Houston R, Hugot JP (2007). "Molecular phylogeny of clade III nematodes reveals multiple origins of tissue parasitism". Parasitology. 134: 1421–1442. doi:10.1017/S0031182007002880. 
  3. ^ Anderson RC (2000). Nematode Parasites of Vertebrates. Their Development and Transmission, 2nd ed. CAB International, Wallingford, Oxon, UK, pp. 245-315. ISBN 0-85199-421-0
  4. ^ Poinar Jr, G. and Boucot, A. J. (2006) Evidence of intestinal parasites of dinosaurs. Parasitology, 133: 245-249.
  5. ^ Sprent, J. F. A. (1985). "Ascaridoid Nematodes of Amphibians and Reptiles: Seuratascaris n. g." Annales de Parasitologie Humaine et Comparée. 60 (3): 231–246. doi:10.1051/parasite/1985603231. ISSN 0003-4150.  open access publication – free to read

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