scholarly journals Description of a new genus and two new species of Leiodidae (Coleoptera) from Baltic amber using phase contrast synchrotron X-ray microtomography

Zootaxa ◽  
2012 ◽  
Vol 3455 (1) ◽  
pp. 81 ◽  
Author(s):  
MICHEL PERREAU
Keyword(s):  
New Species ◽  
Phase Contrast ◽  
New Genus ◽  
Evolutionary Relationship ◽  
Baltic Amber ◽  
Fossil Species ◽  
X Ray ◽  
Non Invasive ◽  
Internal Morphology ◽  
Two New Species

A new genus and two new amber fossil species of Leiodidae are described: Catops perkovskyi sp. n. (CholevinaeCholevini) and Tafforeus cainosternus gen. n., sp. n. (Leiodinae Pseudoliodini); using virtual dissection by propagationphase contrast synchrotron X-ray microtomography, which allows for visualization of the genital structures in a non-invasive way. The external and internal morphology of the new species is compared to that of the extant related species.Putative evolutionary relationship between Tafforeus and the genus Cainosternum Notman, 1921, and their placement in the tribe Pseudoliodini are discussed.

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.

Fossil Tachyine Beetles from Mexican and Baltic Amber

1971 ◽  
Vol 2 (3) ◽  
pp. 233-236 ◽  
Author(s):  
Terry L. Erwin
Keyword(s):  
New Species ◽  
New Genus ◽  
Baltic Amber ◽  
Two New Species

AbstractTwo new species and one new genus are described and placed within the Tribe Tachyini. A discussion of hypothetical relationships is given for these species. And, a synonymy among names applied to extant groups of tachyines is pointed out and corrected.

A revision of Australian Mesozoic and Cenozoic lungfish of the family Neoceratodontidae (Osteichthyes:Dipnoi), with a description of four new species

1997 ◽  
Vol 71 (4) ◽  
pp. 713-733 ◽  
Author(s):  
A. Kemp
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Fossil Species ◽  
Southeastern Australia ◽  
The Family ◽  
Two New Species ◽  
Australian Lungfish ◽  
Cretaceous Deposits

The taxonomy of the predominantly Australian fossil dipnoan genus, Neoceratodus, is revised and the Recent Australian lungfish, Neoceratodus forsteri, and two fossil species, Neoceratodus eyrensis and Neoceratodus nargun, are redefined. Two new species of the related Tertiary genus, Mioceratodus, are described on the basis of tooth plates from central and northern localities in Australia. These are Mioceratodus diaphorus and Mioceratodus poastrus. A new genus, Archaeoceratodus, is erected to include three rare Tertiary species and one Mesozoic species. The Tertiary members of this genus are the type species, Archaeoceratodus djelleh, described originally as Neoceratodus djelleh, and two new species, Archaeoceratodus rowleyi and Archaeoceratodus theganus. The Mesozoic species is Archaeoceratodus avus from Triassic and Cretaceous deposits in southeastern Australia, described originally as Ceratodus avus. All three genera belong in the family Neoceratodontidae.

scholarly journals New genus, two new species and new records of subterranean freshwater snails (Caenogastropoda; Cochliopidae and Lithoglyphidae) from Coahuila and Durango, Northern Mexico

2019 ◽  
Vol 29 ◽  
pp. 89-102 ◽  
Author(s):  
Alexander Czaja ◽  
Gabriel Fernando Cardoza-Martínez ◽  
Iris Gabriela Meza‑Sánchez ◽  
José Luis Estrada-Rodríguez ◽  
Jorge Saenz‑Mata ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
New Records ◽  
First Record ◽  
Shell Morphology ◽  
Fossil Species ◽  
Northern Mexico ◽  
Two New Species ◽  
Genus Two ◽  
Cuatro Ciénegas Basin

This paper describes a new genus, two new species and new records of subterranean gastropods from the Sabinas and Álamos River, Coahuila, and the Nazas River, Durango, in northern Mexico. Phreatomascogosgregoigen. n. et sp. n. from Don Martín Basin, Coahuila, is described based on shells and opercula that show some morphological similarities with shells of Phreatodrobia Hershler & Longley, 1986 (Lithoglyphidae), which is a subterranean genus from neighboring area in Texas, United States. Conchologically, the new genus can be distinguished from Phreatodrobia and all other subterranean genera by a unique combination of characteristic shell morphology and opercula apomorphies. Balconorbissabinasensesp. n. (Cochliopidae) is the second species of this genus, which was previously known only from caves and associated subterranean habitats in Texas. The new record of Coahuilixparrasense, Czaja, Estrada-Rodríguez, Romero-Méndez, Ávila-Rodríguez, Meza-Sánchez & Covich, 2017 (Cochliopidae) from Durango and Coahuila is the first record of extant member of this genus out of its hitherto known habitat in the Cuatro Ciénegas basin, Coahuila. These records are remarkable because C.parrasense had been described recently as a fossil species. Shell morphologies of the new subterranean snails could be interpreted as possible evolutional adaptations to different hydrodynamic and other specific conditions in their habitat.

scholarly journals Two new species of the family Rhynchitidae (Coleoptera: Curculionoidea) from Eocene Baltic amber, with key to species and assumed trophic relationships

Fossil Record ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 117-127
Author(s):  
Andris Bukejs ◽  
Andrei A. Legalov
Keyword(s):  
New Species ◽  
Body Size ◽  
First Record ◽  
Trophic Relationships ◽  
Baltic Amber ◽  
Key To Species ◽  
Weakly Convex ◽  
Fossil Species ◽  
The Family ◽  
Two New Species

Abstract. Two new fossil species of Baltocar Kuschel, 1992 and Pseudomesauletes Legalov, 2001 (Curculionoidea: Rhynchitidae) are described from Eocene Baltic amber. Baltocar sontagae sp. nov. is similar to B. groehni Riedel, 2012 but differs in the shorter rostrum, tarsomere 1 shorter than tarsomere 5 and 1.4× as long as tarsomere 2, longer elytra, and shorter body. Pseudomesauletes lobanovi sp. nov. is similar to P. culex (Scudder, 1893) and P. ibis (Wickham, 1912): the new species differs from P. culex in the larger eyes, longer pronotum, being 0.44× shorter than elytra, and slightly smaller body size; from P. ibis it differs in the smaller body size, rostrum shorter than elytra, and weakly convex pronotum. This is the first record of Pseudomesauletes from Baltic amber and the sixth species of Baltocar. Keys to species of the genus Baltocar and to the Eocene species of the genus Pseudomesauletes are given. Assumed trophic relationships of these fossil taxa are discussed (urn:lsid:zoobank.org:pub:260EBE6E-DA6C-4D6D-A1D2-2C258224622F).

A new fossil species of Pycnomerus Erichson (Coleoptera: Zopheridae) from Baltic amber, and a replacement name for a Recent North American congener

Zootaxa ◽  
2019 ◽  
Vol 4550 (4) ◽  
pp. 565 ◽  
Author(s):  
ANDRIS BUKEJS ◽  
VITALII I. ALEKSEEV ◽  
DAVID M.L. COOPER ◽  
GAVIN A. KING ◽  
RYAN C. MCKELLAR
Keyword(s):  
New Species ◽  
North American ◽  
Fossil Record ◽  
Baltic Amber ◽  
Micro Ct ◽  
Fossil Species ◽  
X Ray ◽  
Extant Species ◽  
The Baltic

Based on a well-preserved specimen from Eocene Baltic amber, the second fossil species belonging to the genus Pycnomerus Erichson (Coleoptera: Zopheridae: Zopherinae), P. agtsteinicus Bukejs, Alekseev & McKellar sp. nov. is described and illustrated using synchrotron X-ray micro-CT observations. The new species adds to the sparse fossil record of Pycnomerus, which consists of the Baltic amber discoveries, and only four subfossil records in sediments that are less than one million years old. As part of this work, the new replacement name Pycnomerus lordi Bukejs, Alekseev & McKellar nom. nov. is also established for the extant species Pycnomerus sulcicollis LeConte, 1863 [non Pycnomerus sulcicollis (Germar, 1824)]. 

scholarly journals A New Fossil Snake-Fly Species from Baltic Amber (Raphidioptera: Inocelliidae)

1995 ◽  
Vol 102 (3-4) ◽  
pp. 187-193 ◽  
Author(s):  
Michael S. Engel
Keyword(s):  
New Species ◽  
New Genus ◽  
Baltic Amber ◽  
Upper Eocene ◽  
Fossil Species ◽  
A New Species

A new species of inocelliid snake-fly,Fibla carpenteri, is described and figured frorn Middle to Upper Eocene Baltic amber. The species belongs to the nominate subgenus and is the largest amber snake-fly currently known. The aberrant fossil speciesInocellia peculiarisis transferred to a new genus,EIectrinocellia, and placed in a new subfamily, the Electrinocelliinae, sister to the remainder of the Inocelliidae.

Sign in / Sign up

Export Citation Format

Share Document