Fossil harvestmen (Arachnida, Opiliones) from Bitterfeld amber

By

Dunlop, Jason A.
Mitov, Plamen Genkov

Type

Article

Date of Publication

2009

Original Publication

ZooKeys

Volume

16

Pages

347-375

Subjects

Biogeography , Dyspnoi , Eupnoi , Oligocene , Sachsen-Anhalt

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.16.224

 

Abstract

Fossil harvestmen (Arachnida: Opiliones: Dyspnoi and Eupnoi) are described from Bitterfeld amber, Sachsen-Anhalt, Germany deposited in the Museum für Naturkunde, Berlin. The exact age of this amber has been in dispute, but recent work suggests it is youngest Palaeogene (Oligocene: Chattian). Histricostoma tuberculatum (Koch & Berendt, 1854), Caddo dentipalpus (Koch & Berendt, 1854), Dicranopalpus ramiger (Koch & Berendt, 1854) and Leiobunum longipes Menge, 1854 – all of which are also known from Eocene Baltic amber – are reported from Bitterfeld amber for the first time. They support the idea that both ambers sampled a similar terrestrial arthropod fauna: irrespective of any difference in age. Mitostoma gruberi sp. n. and Amilenus deltshevi sp. n. are described as new. One fossil is, in our opinion, morphologically indistinguishable from the extant species Lacinius erinaceus Staręga, 1966 from the Caucuses, and is tentatively assigned to this taxon. The Bitterfeld material thus includes the first fossil record of the extant genera Amilenus Martens, 1969 and Lacinius Thorell, 1876 respectively.