Occurrence of Meyeria magna M’Coy, 1849 in Colombia: a widely distributed species during Aptian times

Abstract

Occurrence of the mecochirid decapod Meyeria magna M'Coy 1849 is documented based on numerous articulated specimens collected from upper Aptian strata of Colombia. This report represents the fi rst record in America for the species, previously reported from Aptian deposits of Europe. The numerous specimens of a relatively uniform size found in a single stratigraphic level suggests a mass mortality event, favorable conditions for the development of the community, or both. The stratigraphic range for the genus Meyeria is confi rmed to be Lower to Upper Cretaceous.Key words: Crustacea, Mecochiridae, Meyeria, Aptian, Colombia. Resumen La presencia del decápodo mecoquírido Meyeria magna M'Coy 1849, es documentada con base en numerosos ejemplares articulados, recolectados en estratos del

Chapter 12

“…Etayo-Serna et al, 1969, 224). However, Durham (1946), Julivert (1968, 69) and Vega et al (2008) indicated that they have an Aptian range.…”

Atherfieldastacus rapax (Harbort, 1905) (Glypheidae, Mecochiridae) from the Lower Cretaceous of the Maestrat Basin (NE Spain)

“…Glypheidean lobsters (Decapoda, Glypheidea) belong to a particularly specialized group of decapod crustaceans, which are highly diversified in the fossil record (Charbonnier et al, 2015), despite their low preservation potential when compared to other marine invertebrates (Kidwell and Flessa, 1995). In particular, the Mecochiridae family ( Van Straelen, 1925) has been the subject of many studies in recent times (Neto de Carvalho et al, 2003;Amati et al, 2004;Neto de Carvalho et al, 2007;Feldmann et al, 2007;Vega et al, 2008;Garassino et al, 2009;López-Horgue, 2009;De Grave et al, 2009;Schweitzer et al, 2010;Astrop, 2011;González-León et al, 2014Charbonnier et al, 2015;Breton et al, 2015;González-León et al, 2016;Neto de Carvalho, 2016 andRobin et al, 2016). Mecochiridae is considered to have 48 species within 7 genera (Schweitzer et al, 2010).…”