Coleoptera from the middle-upper Eocene European ambers: generic composition, zoogeography and climatic implications

Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 401 ◽  
Author(s):  
VITALII I. ALEKSEEV
Keyword(s):  
Baltic Amber ◽  
Upper Eocene ◽  
Annual Average ◽  
Equable Climate ◽  
General Similarity ◽  
Generic Composition ◽  
In The Wild ◽  
Climatic Range ◽  
The Baltic ◽  
Warm Temperate

The paper contains a review of coleopteran genera known from Baltic, Bitterfeld and Rovno amber localities. Altogether 420 genera (191 extinct and 229 extant) from 78 families are listed from these three Lagerstätten (as of 7 March 2017). The listed beetles were analyzed zoogeographically and distributional maps for 72 genera were compiled. One-quarter (56) of the genera that have survived since the Eocene have cosmopolitan ranges at present; 35 extant genera have been extripated from the Palaearctic since the Eocene. Approximately 40% of beetle genera from the middle-upper Eocene European ambers can be encountered in the wild in present-day Europe, while 5 of these genera are supposed to be European relict endemics originating in Fennosarmatia. The general similarity of the Baltic amber (s.l.) beetle assemblage to modern south Palaearctic fauna is the strongest, the Nearctic elements are more numerous in the middle-upper Eocene European ambers than the Oriental taxa. The simplified Mutual Climatic Range (MCR) method was used for palaeoclimate reconstruction based on fossil beetles. The coleopteran assemblage of Baltic amber is interpreted as indicative of warm temperate, humid, equable climate with reduced thermal seasonality [annual average temperatures range from +10–20˚C; mean of the coldest month temperatures around +10˚C; mean of the hottest month temperature around +20–24˚C; annual precipitation around 750–1500 mm]. The primary importance of high humidity for existence of the Eocene biota is pointed out. 

Three new caddisflies species of the fossil genus Archaeotinodes (Insecta: Trichoptera: Ecnomidae) from the Baltic Amber

Zootaxa ◽  
2013 ◽  
Vol 3635 (3) ◽  
pp. 261-268 ◽  
Author(s):  
STANISLAV I. MELNITSKY ◽  
VLADIMIR D. IVANOV
Keyword(s):  
Baltic Amber ◽  
Upper Eocene ◽  
The Baltic ◽  
Fossil Genus

Three new caddisflies species of the fossil genus Archaeotinodes: Archaeotinodes petropolitana sp. nov., Archaeotinodes regiomontana sp. nov., and Archaeotinodes rossica sp. nov. from the Baltic amber (Upper Eocene, 40 million years old), are described and illustrated.

Unexpected findings in the Eocene Baltic amber forests: Ground beetle fossils of the tribe Nebriini (Coleoptera: Carabidae)

Zootaxa ◽  
2019 ◽  
Vol 4701 (4) ◽  
pp. 350-370
Author(s):  
JOACHIM SCHMIDT ◽  
STEFAN SCHOLZ ◽  
DAVID H. KAVANAUGH
Keyword(s):  
Ground Beetle ◽  
Sister Group ◽  
Climatic Conditions ◽  
Baltic Amber ◽  
New Taxon ◽  
Micro Computed Tomography ◽  
X Ray ◽  
The Baltic ◽  
Unexpected Findings ◽  
Warm Temperate

Occurrence of the ground beetle tribe Nebriini in the Baltic amber forest is confirmed. The nebriine taxon Archaeonebria inexspectata gen. n., sp. n., is described and imaged based on four fossil specimens preserved in the Eocene Baltic amber using light microscopy and X-ray micro-computed tomography. The new taxon shares likely synapomorphies with the amphipacific genus Nippononebria and is therefore proposed as its sister group. The occurrence of Archaeonebria in the Baltic amber forests supports previous assumptions that these forests grew under temperate, at least warm-temperate, climatic conditions. 

scholarly journals New Records Of The Dipteran Genera Triphleba (Phoridae) And Prosphyracephala (Diopsidae) In Rovno And Baltic Ambers

2015 ◽  
Vol 49 (3) ◽  
pp. 245-250 ◽  
Author(s):  
E. E. Perkovsky ◽  
M. B. Mostovski ◽  
H. Henderickx
Keyword(s):  
New World ◽  
New Records ◽  
Rovno Amber ◽  
Baltic Amber ◽  
Wing Venation ◽  
Upper Eocene ◽  
Old World ◽  
Lower Oligocene ◽  
The Baltic ◽  
First Time

Abstract Dipteran insects constitute 51 % among arthropods of the Rovno Amber. There are 99 species and 23 genera of the Diptera described from the Rovno Amber; however, to date only 32 species are shared with the Baltic Amber fauna, including two species that are treated in this paper. Triphleba schulmanae Brown, 2003 (Phoridae), originally described from the Baltic Amber, is recorded in the Rovno Amber for the first time and its amended description is supplied. Genus Prosphyracephala Hennig, 1965 (Diopsidae), earlier known from the Baltic and Saxonian ambers, the Upper Eocene of Ruby River (Montana, USA) and the Lower Oligocene of Céreste (France), is recorded in the Rovno Amber for the first time. Prosphyracephala aff. succini (Loew, 1873) is the first diopsid record from Ukraine. A second specimen of Prosphyracephala kerneggeri Kotrba, 2009 is found in the Baltic amber; the complete wing venation is described for the first time for this species. Vast majority of the Old World Diopsidae are strictly thermophilous. In fact, all of them but the five species of brevicornis group of Sphyracephala Say (three Palearctic and two Nearctic ones) frequent tropic and the warmest subtropic areas, however the thermophilous Diopsidae are known in the New World neither in past nor in contemporary fauna.

A new species of Palaeopoecilostola Meunier, 1899 (Diptera: Limoniidae) from the Eocene Baltic amber

Zootaxa ◽  
2012 ◽  
Vol 3495 (1) ◽  
pp. 42 ◽  
Author(s):  
IWONA KANIA ◽  
WIESŁAW KRZEMIŃSKI
Keyword(s):  
New Species ◽  
Cladistic Analysis ◽  
Junior Synonym ◽  
Broad Sense ◽  
Baltic Amber ◽  
Distributional Pattern ◽  
Upper Eocene ◽  
The Baltic ◽  
A New Species

A new species of the genus Palaeopoecilostola Meunier, 1899 (Diptera: Limoniidae) from the Baltic amber (Upper Eocene) is described. The cladistic analysis of the species included in this genus is provided. The distributional pattern of the Palaeopoecilostola species is discussed. Palaeopoecilostola as numerous and remarkable representative of Limoniidae, can be treated as the marker genus of the Baltic amber in broad sense (including Bitterfeld and Ukrainian ambers). Anepsiomyia atterraneus Nazarov, 1994 is resurrected from synonymy with Palaepoecilostola speciosa Meunier, 1906. Ryta berestiana Nazarov, 1994 appears a junior synonym of Palaepoecilostola speciosa Meunier, 1906.

scholarly journals The first fossils of the most basal pseudoscorpion family (Arachnida: Pseudoscorpiones: Pseudotyrannochthoniidae): evidence for major biogeographical shifts in the European paleofauna

PalZ ◽  
2021 ◽  
Author(s):  
Daniel Schwarze ◽  
Danilo Harms ◽  
Jörg U. Hammel ◽  
Ulrich Kotthoff
Keyword(s):  
Central Asia ◽  
Fossil Record ◽  
Range Shifts ◽  
Baltic Amber ◽  
Northern Europe ◽  
Eastern Asia ◽  
Fossil Species ◽  
The Baltic ◽  
Warm Temperate ◽  
Over Time

AbstractPseudoscorpions belong to the oldest terrestrial lineages with origins in the Devonian (ca. 385 Ma) but their fossil record is extremely sparse and little is known about their diversification over time. Here, we describe the first fossil species of the pseudoscorpion family Pseudotyrannochthoniidae that resemble the Devonian fossils in major details, such as the chaetotaxy of the pedipalps. We describe two new species, Allochthonius balticus sp. nov. from Baltic amber and Centrochthonius bitterfeldicus sp. nov. from Bitterfeld amber in northern Europe. Both species can unequivocally be assigned to extant genera and provide further evidence for dramatic range shifts in European invertebrate biota since the Paleogene. Allochthonius Chamberlin, 1929 is a diverse genus in eastern Asia (China, Korea, and Japan) today but does not occur anywhere in central Asia, Europe or North America. Centrochthonius Beier, 1931 is a poorly known genus but seems to be restricted to high altitude habitats in central Asia (China, Kyrgyzstan, and Nepal). With range retractions to regions more than 4600 km away from the European amber deposits, the fossils highlight total lineage extinction in Europe and survival in refugia that are climatically and botanically most similar to the Baltic amber forest of the Eocene. Overall, our results support the concept of morphological but potentially also ecological stasis in major pseudoscorpion lineages over long periods of time and agree with previous studies that suggested a warm temperate rather than subtropical or tropical climate for the time of amber deposition.

Review of Mycetobia Meigen, 1818 (Diptera, Anisopodidae) in the Eocene ambers

Zootaxa ◽  
2019 ◽  
Vol 4544 (1) ◽  
pp. 1 ◽  
Author(s):  
MACIEJ WOJTOŃ ◽  
IWONA KANIA ◽  
WIESŁAW KRZEMIŃSKI
Keyword(s):  
New Species ◽  
Baltic Amber ◽  
The Baltic

A revision of the genus Mycetobia Meigen, 1818 from the Eocene is presented. Redescription of Mycetobia connexa Meunier, 1899 known from the Baltic amber is given and documented by photographs and drawings. Five new species of Mycetobia from Eocene resins are described, four from Baltic amber: Mycetobia christelae sp. nov., Mycetobia hansi sp. nov., Mycetobia silvia sp. nov., Mycetobia szwedoi sp. nov. and one from the Ukrainian amber: Mycetobia perkovskyi sp. nov. Key to the species of Mycetobia known from the Eocene is provided. 

A new species of anapid spider (Araneae: Araneoidea, Anapidae) in Eocene Baltic amber, imaged using phase contrast X-ray computed micro-tomography

Zootaxa ◽  
2011 ◽  
Vol 2742 (1) ◽  
pp. 60 ◽  
Author(s):  
DAVID PENNEY ◽  
ANDREW MCNEIL ◽  
DAVID I. GREEN ◽  
ROBERT BRADLEY ◽  
YURI M. MARUSIK ◽  
...  
Keyword(s):  
New Species ◽  
Phase Contrast ◽  
Baltic Amber ◽  
X Ray ◽  
The Family ◽  
X Ray Computed ◽  
Micro Tomography ◽  
The Baltic ◽  
A New Species ◽  
Eocene Amber

A new species of the extant spider family Anapidae is described from a fossil mature male in Eocene amber from the Baltic region and tentatively assigned to the genus Balticoroma Wunderlich, 2004. Phase contrast X-ray computed micro-tomography was used to reveal important features that were impossible to view using traditional microscopy. Balticoroma wheateri new species is easily diagnosed from all other anapids by having clypeal extensions that run parallel to the ectal surface of the chelicerae and in having the metatarsus of the first leg highly reduced and modified into what is presumably a y-shaped clasping structure. Although only a single extant anapid species occurs in northern Europe, the family was diverse in the Eocene. The discovery of yet another anapid species in Baltic amber supports the idea that Eocene European forests may have been a hotspot of evolution for this family of spiders.

scholarly journals Spatial Variation of the Relationship between PM2.5Concentrations and Meteorological Parameters in China

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Gang Lin ◽  
Jingying Fu ◽  
Dong Jiang ◽  
Jianhua Wang ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Negative Correlation ◽  
Meteorological Parameters ◽  
Semiarid Region ◽  
Strong Positive Correlation ◽  
Annual Average ◽  
Strong Negative Correlation ◽  
Positive Correlation ◽  
Humid Region ◽  
The Relationship ◽  
Warm Temperate

Epidemiological studies around the world have reported that fine particulate matter (PM2.5) is closely associated with human health. The distribution of PM2.5concentrations is influenced by multiple geographic and socioeconomic factors. Using a remote-sensing-derived PM2.5dataset, this paper explores the relationship between PM2.5concentrations and meteorological parameters and their spatial variance in China for the period 2001–2010. The spatial variations of the relationships between the annual average PM2.5, the annual average precipitation (AAP), and the annual average temperature (AAT) were evaluated using the Geographically Weighted Regression (GWR) model. The results indicated that PM2.5had a strong and stable correlation with meteorological parameters. In particular, PM2.5had a negative correlation with precipitation and a positive correlation with temperature. In addition, the relationship between the variables changed over space, and the strong negative correlation between PM2.5and the AAP mainly appeared in the warm temperate semihumid region and northern subtropical humid region in 2001 and 2010, with some localized differences. The strong positive correlation between the PM2.5and the AAT mainly occurred in the mid-temperate semiarid region, the humid, semihumid, and semiarid warm temperate regions, and the northern subtropical humid region in 2001 and 2010.

A new species of Lonchodryinus (Hymenoptera, Dryinidae) from Upper Eocene Baltic amber

Zootaxa ◽  
2021 ◽  
Vol 5020 (2) ◽  
pp. 328-336
Author(s):  
MASSIMO OLMI ◽  
DMITRY V. VASILENKO ◽  
LEONARDO CAPRADOSSI ◽  
EVGENY E. PERKOVSKY ◽  
ADALGISA GUGLIELMINO
Keyword(s):  
New Species ◽  
Fore Wing ◽  
Baltic Amber ◽  
Upper Eocene ◽  
Fossil Species ◽  
Extant Species ◽  
A New Species

Lonchodryinus groehni sp. nov. (Hymenoptera: Chrysidoidea: Dryinidae) is described from Baltic amber. The new species is close to L. balticus Olmi & Guglielmino, 2012, but it can be distinguished for the different OPL/POL ratio and 2r-rs&Rs vein of the fore wing. A key to the fossil species of Lonchodryinus and a comparison with the extant species L. ruficornis (Dalman, 1818) are presented.  

Sign in / Sign up

Export Citation Format

Share Document