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.

Description of the first flightless platynine ground beetle preserved in Baltic amber (Coleoptera: Carabidae)

Zootaxa ◽  
2017 ◽  
Vol 4318 (1) ◽  
pp. 110
Author(s):  
JOACHIM SCHMIDT ◽  
TORBEN GÖPEL ◽  
KIPLING WILL
Keyword(s):  
Computed Tomography ◽  
New Species ◽  
Type Species ◽  
Ground Beetle ◽  
Species Level ◽  
Baltic Amber ◽  
Monotypic Genus ◽  
X Ray ◽  
X Ray Computed ◽  
A New Species

Species of the megadiverse ground beetle tribe Platynini occur on all continents except Antarctica. It has been long recognized that platynine beetles were preserved in the Eocene Baltic amber. However, thus far only a single Eocene fossil has been described to the species level. In the present paper, a new species of Platynini known only as an amber inclusion fossil is described and imaged using light microscopy and micro X-ray computed tomography. Since this species cannot be assigned to any of the recently described genera, the monotypic genus Praeanchodemus gen. n., with the type species P. punctaticeps sp. n., is erected. There is some evidence from external morphology that Praeanchodemus gen. n. is part of a lineage comprising the recent genera Paranchodemus, Rhadine, and Tanystoma. However, since some synapomorphies were not found, the true relationships of the fossil taxon remain moot. 

The first fossil Phloeocharinae Erichson, 1839 (Coleoptera, Staphylinidae) from the Baltic Eocene amber

2020 ◽  
Vol 3 (4) ◽  
pp. 375-381
Author(s):  
ALEXEY V. SHAVRIN ◽  
KRISTAPS KAIRIŠS
Keyword(s):  
Computed Tomography ◽  
New Species ◽  
Body Shape ◽  
External Morphology ◽  
Body Parts ◽  
Micro Computed Tomography ◽  
X Ray ◽  
The Baltic ◽  
A New Species ◽  
Eocene Amber

A new species of the genus Charhyphus Sharp, 1887 (Phloeocharinae) from the Eocene Baltic amber is described and illustrated: Ch. balticus Shavrin, sp. nov. The specimen was studied by using X-ray micro-computed tomography (μCT); images of the habitus, body parts and aedeagus were obtained. Based on external morphology, the new species is related to Nearctic Ch. picipennis (LeConte, 1863) and East Palaearctic Ch. paradoxus (Bernhauer, 1933), from which it differs by the smaller body, shape of the head, and other details.

First fossil representative of Cerylonidae (Coleoptera: Coccinelloidea) described using X-ray micro-computed tomography, from Eocene Baltic amber

Zootaxa ◽  
2021 ◽  
Vol 5032 (2) ◽  
pp. 225-236
Author(s):  
ANDRIS BUKEJS ◽  
ADAM ŚLIPIŃSKI ◽  
JERIT L. MITCHELL ◽  
RYAN C. MCKELLAR ◽  
MAURICIO BARBI ◽  
...  
Keyword(s):  
Computed Tomography ◽  
New Species ◽  
Baltic Amber ◽  
Micro Computed Tomography ◽  
Extinct Species ◽  
X Ray ◽  
The Family

Based on material originating from five amber collections of Eocene Baltic amber, Protostomopsis pandema gen. et sp. nov. is described and illustrated using X-ray micro-computed tomography. It is the first formally described extinct species of Cerylonidae, and the first known Palaearctic representative of the subfamily Ostomopsinae. As such, the new species extends the temporal range of the family Cerylonidae by approximately 45 Ma.  

A new fossil genus of net-winged beetles, with a brief review of amber Lycidae (Insecta: Coleoptera)

Zootaxa ◽  
2013 ◽  
Vol 3608 (1) ◽  
pp. 94-100 ◽  
Author(s):  
SERGEY V. KAZANTSEV
Keyword(s):  
New Species ◽  
Baltic Amber ◽  
New Taxon ◽  
The Baltic ◽  
Fossil Genus ◽  
A New Species

A new fossil genus of net-winged beetles, Protolopheros gen. n., and a new species, Protolopheros hoffeinsorum sp. n., are described from the Baltic amber. The new taxon is placed in Erotini, next to Lopheros Leconte, 1881. The extant Pseudaplatopterus (Eropterus) Green, 1951, comb. n. is lowered in rank and placed as a subgenus of the fossil Pseudaplatopterus Kleine, 1940. The extant Kolibaceum (Laterialis) Kazantsev, 1990, comb. n. is lowered in rank and placed as a subgenus of the fossil Kolibaceum Winkler, 1987.

Baltic amber: A new Cacomorphocerus Schaufuss, 1892 with two specimens preserved in a single piece, and four new Malthodes Kiesenwetter, 1852

Zootaxa ◽  
2020 ◽  
Vol 4778 (3) ◽  
pp. 546-560
Author(s):  
FRANCESCO PARISI ◽  
FABRIZIO FANTI
Keyword(s):  
New Species ◽  
Baltic Amber ◽  
Vast Amount ◽  
Single Piece ◽  
The Baltic ◽  
A New Species

The Baltic amber has proven to be an incredible resource for the environmental and faunistic diversity of the Eocene and this is also evident from the vast amount of Cantharidae species (soldier beetles) described as inclusions in this resin and Fossil-Lagerstätte. The present work contributes to highlighting both this trend and the variety of forms in particular for the genus Malthodes Kiesenwetter, 1852 with four new species described and with the addition of a new species of Cacomorphocerus Schaufuss, 1892 with two specimens included in the same amber piece. The new forms, described and illustrated here, are: Cacomorphocerus obstinatus sp. nov., Malthodes giannii sp. nov., Malthodes immortalis sp. nov., Malthodes marialuisae sp. nov., and Malthodes unimol sp. nov. 

scholarly journals A new species of <i>Lacinius</i> in amber (Arachnida: Opiliones)

Fossil Record ◽  
2014 ◽  
Vol 18 (1) ◽  
pp. 37-42 ◽  
Author(s):  
P. G. Mitov ◽  
J. A. Dunlop ◽  
D. Penney
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Baltic Amber ◽  
Extinct Species ◽  
Unique Character ◽  
Extant Species ◽  
The Baltic ◽  
A New Species

Abstract. A new specimen of Lacinius Thorell, 1876; (Opiliones: Phalangiidae) from Eocene Baltic amber is described. We interpret it as conspecific with a slightly younger record from the German Bitterfeld amber, originally referred to as the extant species L. erinaceus Staręga, 1966. Our new specimen reveals pedipalpal apophyses on both the patella and the tibia, features which we can now confirm in the Bitterfeld fossil too. This unique character combination for the genus justifies a new, extinct species: Lacinius bizleyi sp. nov. The Baltic amber inclusion dates to ca. 44–49 Ma, and is thus the oldest putative example of Lacinius in the fossil record. It is a further example of an arachnid species shared between Baltic and Bitterfeld amber.

scholarly journals Janzenella theia Bremer & Talamas (Platygastroidea, Janzenellidae): a new species from Baltic amber

2021 ◽  
Vol 87 ◽  
pp. 223-233
Author(s):  
Jonathan Bremer ◽  
Thomas van de Kamp ◽  
Elijah J. Talamas
Keyword(s):  
New Species ◽  
External Morphology ◽  
Baltic Amber ◽  
Internal Structures ◽  
The Family ◽  
A New Species

A new species, Janzenella theia Bremer &amp; Talamas, sp. nov., is described from Baltic amber, which is the second known species of the family Janzenellidae (Platygastroidea). Synchrotron scanning was performed to observe internal structures and external morphology that was occluded by turbidity in the amber matrix surrounding the specimen.

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