title: A new ascarid species in cynodont coprolite dated of 240 million years.
abstract: Cynodonts represent the transition from reptiles to mammals. They are classified as synapsids, or tetrapod animals with mammalian characteristics. We present here the finding of helminth eggs in a coprolite identified as of cynodont origin dated of nearly 240 million years. Microscopy revealed the presence of very well preserved intestinal parasite eggs. Up to now we identified an ascarid egg by morphological characteristics. Based on a previous description of the new genus Ascarites Poinar Jr and Boucot 2006 in coprolites of iguanodons from Belgium, we propose a new species, Ascarites rufferi n.sp. in cynodonts, a host that inhabited the Southern Region of Brazil in the Triassic period.
authors: Priscilla A da
authors: PA
authors: Silva
authors: Victor H
authors: VH
authors: Borba
authors: Juliana M F
authors: JM
authors: Dutra
authors: Daniela
authors: D
authors: Leles
authors: Atila A S
authors: AA
authors: da-Rosa
authors: Luiz F
authors: LF
authors: Ferreira
authors: Adauto
authors: A
authors: Araujo
mesh_terms: D000818:Animals; D001197:Ascaridia / Q000145:classification / Q000302:isolation & purification*; D001938:Brazil; D005243:Feces / Q000469:parasitology*; D005580:Fossils; D010164:Paleopathology