scholarly journals A New Genus and Species of Grass, Eograminis balticus (Poaceae: Arundinoideae) in Baltic Amber

Author(s):  
George Poinar ◽  
Robert J. Soreng
Zootaxa ◽  
2015 ◽  
Vol 4058 (1) ◽  
pp. 119 ◽  
Author(s):  
ANDRIS BUKEJS ◽  
MAURIZIO BIONDI ◽  
VITALII I. ALEKSEEV

Zootaxa ◽  
2019 ◽  
Vol 4686 (3) ◽  
pp. 435-445
Author(s):  
M. JARED THOMAS ◽  
JOSIP SKEJO ◽  
SAM W. HEADS

A new genus and species of pygmy grasshopper (Orthoptera: Tetrigidae) is described from Eocene Baltic amber. Danatettix hoffeinsorum gen. et sp. nov. is assigned to the subfamily Batrachideinae based on antennae with more than 19 antennomeres, sulcate mesofemora, and rectangular paranota. This species is readily distinguished from other batrachideines by a markedly produced vertex, pronotum with divergent internal and external lateral carinae, and highly setiferous female lateral basivalvular sclerite with scabrose integument. The morphology of Danatettix suggests placement within the here defined Tettigidea genus group (comprising Eutettigidea Hancock, 1914, Paurotarsus Hancock, 1900, and Tettigidea Scudder, 1862) and suggests that the latter had diverged from the new Scaria genus group (comprising Eotetrix Gorochov, 2012, Rehnidium Grant, 1956 and Scaria Bolívar, 1887) by the Early Eocene. 


2005 ◽  
Vol 36 (2) ◽  
pp. 161-172 ◽  
Author(s):  
Jacek Szwedo

AbstractThe tribal classification of Derbidae with respect to Otiocerini is presented and discussed. Key to extant and fossil genera of Otiocerini is provided. New genus and species from Eocene Baltic amber – Lugeilangor elektrokleistis gen. n. et sp. n. of Derbidae tribe Otiocerini Muir is described. It seems to be related to the extant Asian-Pacific genera Paralyricen Muir, 1913, and Flaccia Stål, 1866. It is the second record of the family Derbidae in Eocene Baltic amber inclusions. Palaeobiological and biogeographical significance of the fossil is discussed.


Zootaxa ◽  
2018 ◽  
Vol 4527 (4) ◽  
pp. 569
Author(s):  
ZHI-TENG CHEN

Based on a well-preserved female specimen, a new stonefly genus and species of the family Taeniopterygidae, Balticopteryx dui gen. et sp. nov. is described and illustrated, which is also the first report of subfamily Brachypterainae from the Eocene Baltic amber. Diagnostic characters of this new genus are discussed and compared with related taxa. 


Zootaxa ◽  
2021 ◽  
Vol 4927 (4) ◽  
pp. 505-524
Author(s):  
GREGORY R. CURLER ◽  
KORNELIA SKIBIŃSKA

Few species of Baltic amber Psychodinae have been described to date. Some were incorrectly classified in Pericoma Walker based on an early, broad definition of the genus and holotypes were not specified. We examined approximately 50 specimens of Baltic amber Psychodinae in addition to reviewing the original series studied by Fernand Meunier. Lectotypes for Pericoma formosa Meunier and P. speciosa Meunier are designated and Paleotelmatoscopus gen. nov. is proposed to include P. formosa and P. madrizi sp. nov. Characters included in the diagnosis of this new genus and species have implications for future descriptions of Baltic amber Psychodinae. Parts of the head capsule, such as antennae, are often well-preserved and visible, and can be useful for separating species. However, these character complexes are prone to homoplasy and should not be used alone to define genera. Since it is impossible to view internal genitalic characters in fossil species, refinement of generic and species diagnoses based on external morphology is a critical factor in describing the amber fauna. 


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