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Cretaceous Amber (cretaceous + amber)

Distribution by Scientific Domains
Earth and Environmental Science100%

Selected Abstracts

Spiders in Upper Cretaceous Amber from New Jersey (Arthropoda: Araneae)

PALAEONTOLOGY, Issue 4 2002
David Penney
The oldest described fossils of the extant spider families Segestriidae, Oonopidae, Oecobiidae, Dictynidae and Linyphiidae, previously known from the Tertiary, are presented from Upper Cretaceous amber of New Jersey. The third and oldest known specimen of the fossil spider family Lagonomegopidae is also described and provides further palaeontological evidence of a common Laurasian fauna. The extant genera Segestria and Oecobius are taken back a further 52 and 69,74 myr respectively in the fossil record. These fossils predict the presence of the Caponiidae, Tetrablemmidae, Orsolobidae, Dysderidae, Hersiliidae, Eresidae, Pimoidae, Scytodoidea s.l., cyatholipoids, theridioids and symphytognathoids in the Cretaceous. They also extend the known geological range of extant spider families through and beyond the end,Cretaceous extinction. This event, which affected numerous marine and some terrestrial organisms, probably had little effect on the Araneae. [source]

First Psocodean (Psocodea, Empheriidae) from the Cretaceous Amber of New Jersey

ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 4 2010
Dany AZAR
Abstract: Representatives of the extinct psocid family Empheriidae are known from Eocene Baltic amber, Lowermost Eocene French amber (Oise), and Lower Cretaceous Spanish amber (Alava). We report herein the first discovery of an empheriid psocid from the Cretaceous amber of New Jersey as Jerseyempheria grimaldii gen. et sp. nov. The fossil is figured and described. The new species is distinguished from related taxa. A discussion and checklist of Empheriidae are provided. [source]

A New Thorny Lacewing (Insecta: Neuroptera: Rhachiberothidae) from the Early Cretaceous Amber of Lebanon

ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 4 2010
Julian F. PETRULEVI
Abstract: A new genus and species of Rhachiberothidae, Raptorapax terribilissima gen. et sp. nov. from the Cretaceous amber of Lebanon is described. The new genus is assigned to the subfamily Paraberothinae. The new material confirms the great diversity of the group in the Cretaceous age and its decrease in diversity in recent times. [source]

Spiders in Upper Cretaceous Amber from New Jersey (Arthropoda: Araneae)

PALAEONTOLOGY, Issue 4 2002
David Penney
The oldest described fossils of the extant spider families Segestriidae, Oonopidae, Oecobiidae, Dictynidae and Linyphiidae, previously known from the Tertiary, are presented from Upper Cretaceous amber of New Jersey. The third and oldest known specimen of the fossil spider family Lagonomegopidae is also described and provides further palaeontological evidence of a common Laurasian fauna. The extant genera Segestria and Oecobius are taken back a further 52 and 69,74 myr respectively in the fossil record. These fossils predict the presence of the Caponiidae, Tetrablemmidae, Orsolobidae, Dysderidae, Hersiliidae, Eresidae, Pimoidae, Scytodoidea s.l., cyatholipoids, theridioids and symphytognathoids in the Cretaceous. They also extend the known geological range of extant spider families through and beyond the end,Cretaceous extinction. This event, which affected numerous marine and some terrestrial organisms, probably had little effect on the Araneae. [source]

First Psocodean (Psocodea, Empheriidae) from the Cretaceous Amber of New Jersey

ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 4 2010
Dany AZAR
Abstract: Representatives of the extinct psocid family Empheriidae are known from Eocene Baltic amber, Lowermost Eocene French amber (Oise), and Lower Cretaceous Spanish amber (Alava). We report herein the first discovery of an empheriid psocid from the Cretaceous amber of New Jersey as Jerseyempheria grimaldii gen. et sp. nov. The fossil is figured and described. The new species is distinguished from related taxa. A discussion and checklist of Empheriidae are provided. [source]

A New Thorny Lacewing (Insecta: Neuroptera: Rhachiberothidae) from the Early Cretaceous Amber of Lebanon

ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 4 2010
Julian F. PETRULEVI
Abstract: A new genus and species of Rhachiberothidae, Raptorapax terribilissima gen. et sp. nov. from the Cretaceous amber of Lebanon is described. The new genus is assigned to the subfamily Paraberothinae. The new material confirms the great diversity of the group in the Cretaceous age and its decrease in diversity in recent times. [source]