Original Species of Pseudoscorpion Discovered Preserved in 50-Million-Year-Ragged Amber

Paleontologists get described a brand recent genus and species of fossil pseudoscorpion from the Eocene-period Cambay amber of Western India.

Geogaranya valiyaensis. Image credit rating: Agnihotri et al., doi: 10.26879/1276.

Geogaranya valiyaensis. Image credit rating: Agnihotri et al., doi: 10.26879/1276.

Pseudoscorpions are an recount of the earliest arthropods that colonized the landmass of the Earth at some level of the Early Devonian epoch.

This various recount occupies more than 3% of the total known arachnid species.

“Pseudoscorpions are an frail lineage of terrestrial arachnids, which would maybe presumably be morphologically such as apt scorpions but lack a tail and stinger,” mentioned Dr. Priya Agnihotri from the DST-Birbal Sahni Institute of Palaeosciences and colleagues.

“Obvious households get a certain venom equipment within the chelal fingers of the pedipalps, which improved independently from that of scorpions and spiders.”

“Most modern research get also supported the inclusion of pseudoscorpions because the sister neighborhood of scorpions.”

“Because of their gentle bodies and shrimp size, these fossils are largely stumbled on in amber deposits all the plan thru the field, somewhat than in sedimentary deposits,” they added.

“Forty-nine pseudoscorpion species were documented from the Baltic and Rovno amber which is of Eocene in age.”

The newly-stumbled on pseudoscorpion species belongs to the shrimp family Geogarypidae.

Named Geogaranya valiyaensis, it reveals steady resemblance with the usual genus Geogarypus from Sri Lanka, India and Original Guinea.

“The family Geogarypidae is amongst those groups of bark-dwelling and litter-dwelling species which would maybe presumably be such as the family Garypidae in having a attribute subtriangular carapace and eyes shut to the anterior margin,” the paleontologists mentioned.

“The family incorporates more than seventy species with habitat preferences stunning in tropical and subtropical areas with about a reported from temperate biomes.”

“Geogarypidae are more standard within the Baltic and Rovno amber with about a records from the Cretaceous Burmese amber.”

“Unlike their scarce records in fossils, their standard counterparts were recorded from all critical biogeographical areas, in conjunction with Europe, Central Asia, North The United States and North Africa.”

A 50-million-year-aged piece of Cambay amber with Geogaranya valiyaensis turned into stumbled on within the beginning-solid Valia lignite mine, which is section of the Cambay Shale Formation, within the Cambay Basin, Gujarat, India.

“The Cambay Shale Formation overlies the Deccan traps and is underlain by the Paleocene-decrease Eocene Vagadkhol Formation,” the researchers mentioned.

Essentially based on the crew, Geogaranya valiyaensis is considered one of the smallest known adult fossils of pseudoscorpion in amber from the Cambay Basin.

Its discovery adds to the bark-dwelling arthropod biodiversity known within the Eocene amber from Western India.

“The invention of considered one of the smallest known pseudoscorpion adults in amber from the Cambay Basin offers insights into the bark-dwelling arthropod taxa, such as fossil taxa recorded in Baltic and Bitterfeld amber, which survived at some level of the Early Eocene,” the scientists concluded.

“The scanning electron shrimp sight reveals diagnostic traits of the fossil, such as exceptionally enlarged pedipalps, which increases the thought that of phoresy and suggests that species from non-arboreal habitats can also get mistakenly been transported into amber and associated to their flying hosts.”

The invention of Geogaranya valiyaensis is reported in a paper within the journal Palaeontologia Electronica.


Priya Agnihotri et al. 2024. A brand recent genus and species of fossil pseudoscorpion (Arachnida: Pseudoscorpiones) from the Eocene amber of Western India. Palaeontologia Electronica 27 (2): a26; doi: 10.26879/1276