First paleoparasitological record of acanthocephalan eggs from Northwestern Patagonia (Late Holocene, Argentina)

Acta Tropica
M O BeltrameN H Sardella

Abstract

Eggs representative of an acanthocephalan were found in an ancient fragment of raptor pellet, probably belonged to the barn owl, Tyto alba, from the archeological site named "Epullán Chica cave." This site is a cave located at the southern of Neuquén Province, Patagonia, Argentina. The fragment of pellet was found in a layer with charcoals dated at 1980±80 years B.P. A total of 56 eggs were found. Eggs were brown colored and thick-shelled, and presented four membranes, the outer lightly sculpted. The embryos presented hooks in one extremity. Measurements ranged from 87.5 to 107.5μm long and 50 to 57.5μm wide. Eggs were very well-preserved, and were identified as belonged to Class Archiacanthocephala, Order Oligacanthorhynchida, Family Oligacanthorhynchidae, probably Macracanthorhynchus Travassos, 1917, or an unidentified species. This is the first report of small mammal acanthocephalans from ancient material worldwide.

References

Jun 1, 1990·American Journal of Physical Anthropology·K J Reinhard
Apr 1, 1989·Memórias do Instituto Oswaldo Cruz·L F FerreiraM Chame
Jun 2, 2007·The Journal of Parasitology·M H FugassaG M Denegri
Mar 21, 1969·Science·J G MooreE Englert
Jun 25, 2009·Revista Do Instituto De Medicina Tropical De São Paulo·Luciana SiantoAdauto Araújo
Nov 23, 2013·Folia Parasitologica·Omar M Amin

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