The discovery of an existing member of the Glypheidae, a family believed to have been extinct since the Eocene, may yield significant information on the evolution and classification of the decapod Crustacea. The single known specimen displays characters not apparent in fossil material, some of them perhaps representative of an ancestral decapod lineage, others reminiscent of the Astacidea and Thalassinidea.
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The phylogenetic position of the 'living fossils' Neoglyphea and Laurentaeglyphea (Decapoda: Glypheidea).
C R Biol
October 2010
UMR 7138, systématique, évolution, adaptation, Muséum national d'histoire naturelle, 43, rue Cuvier, 75005 Paris, France.
Article Synopsis
- - Glypheidea, a group of lobster-like decapods thought to be extinct since the Triassic period, was rediscovered in 1975 with the Neoglyphea inopinata species caught in the Philippines and another species, Laurentaeglyphea neocaledonica, found in 2005 near New Caledonia.
- - A molecular data set of decapod species was constructed, sequencing eight nuclear and mitochondrial genes from the two existing glypheid species, showing that they cluster together and confirming Glypheidea as a distinct infraorder.
- - Despite being dubbed 'Jurassic shrimps' and labeled 'living fossils,' glypheids are actually a more advanced lineage of decapods
[Laurentaeglyphea, a new genus for the second recent species of Glypheid recently discovered. (Crustacea Decapoda Glypheidae)].
C R Biol
October 2006
Institut océanographique, Fondation Albert-I(er)-Prince-de-Monaco, 195, rue Saint-Jacques, 75005 Paris, France.
In 1975, a recent member of a large group of Crustacea Decapoda was described as Neoglyphea inopinata Forest & de Saint Laurent, until now only known as fossils and presumed extinct since the Eocene. The only known specimen had been collected in the Philippine waters, in 1908, at a depth of 200 m. During the next years, three oceanographical expeditions gave more adult specimens, allowing complete study of the species.
View Article and Find Full Text PDFThe discovery of an existing member of the Glypheidae, a family believed to have been extinct since the Eocene, may yield significant information on the evolution and classification of the decapod Crustacea. The single known specimen displays characters not apparent in fossil material, some of them perhaps representative of an ancestral decapod lineage, others reminiscent of the Astacidea and Thalassinidea.
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