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A new Ladinian (Middle Triassic) mysidacean shrimp (Crustacea, Lophogastrida) from northern Italy and southern Switzerland

Published online by Cambridge University Press:  22 October 2019

Cristiano Larghi Open the ORCID record for Cristiano Larghi [Opens in a new window] ,
Andrea Tintori ,
Daniela Basso ,
Gianluca Danini  and
Markus Felber
Cristiano Larghi
Affiliation:
Eni Spa – Exploration, 5th Office Building, Via Emilia 1, 20097, San Donato Milanese, Italy
Andrea Tintori
Affiliation:
Dipartimento di Scienze della Terra ‘Ardito Desio’, Università degli Studi di Milano, via Mangiagalli 34, I-20133Milano, Italy. A.T.
Daniela Basso
Affiliation:
Dipartimento di Scienze dell'Ambiente e della Terra, Università degli Studi di Milano-Bicocca, Piazza della Scienza 4, 20126Milano, Italy
Gianluca Danini
Affiliation:
Civico Museo Insubrico di Storia Naturale di Clivio/Induno Olona
Markus Felber
Affiliation:
CGA SAGL, Casella Postale 124 6834-Morbio Inferiore, Switzerland MCSN, Lugano, Switzerland
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Abstract

Since the end of the nineteenth century, many paleontological studies have been developed on the Middle Triassic localities of the Monte San Giorgio area (Canton Ticino, Switzerland, and Lombardy, Italy). These localities were inscribed in 2003 and 2010 in the UNESCO World Heritage List due to their paleontological relevance. New crustaceans are here described from the Kalkschieferzone member of the upper Ladinian Meride Limestone, outcropping near Besnasca-Cà del Frate (Viggiù, Italy) and Meride (Mendrisio, Switzerland). Several hundred specimens of a new genus and new species of Lophogastrida, named here Vicluvia lombardoae, improve information on Triassic mysidaceans (sensu lato), a group of shrimp-like crustaceans presently including hundreds of species worldwide distributed in marine and freshwater environments. The paper discusses the relations between Vicluvia n. gen. and the other fossil genera belonging to the same family. Vicluvia lombardoae n. gen. n. sp. exhibits two dorsally vanishing transverse grooves with their branches regularly bending toward the posterior margin of the shield and a telson with a rounded and setose apex. It was probably a euryhaline species living in a transitional environment affected by frequent and ephemeral salinity variations. Middle Triassic taphonomic windows have preserved specimens of lophogastrids in shallow basins along the Tethys, from the present Alps to China as well as in the German Basin.

UUID: http://zoobank.org/1623e8f9-2ceb-4cd6-bcbe-4f05a873e1ff

Type
Articles
Information
Journal of Paleontology , Volume 94 , Issue 2 , March 2020 , pp. 291 - 303
Copyright
Copyright © 2019, The Paleontological Society

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Footnotes

3

Current address: TRIASSICA – Institute for Triassic Fossil Lagerstätten, 23828 Perledo (LC), Italy

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