scholarly journals Sakhalinencyrtus leleji Simutnik gen. et sp. nov. of earliest Encyrtidae (Hymenoptera, Chalcidoidea) from Sakhalinian amber

2021 ◽  
Vol 84 ◽  
pp. 361-372
Author(s):  
Serguei A. Simutnik ◽  
Evgeny E. Perkovsky ◽  
Dmitry V. Vasilenko
Keyword(s):  
New Genus ◽  
Middle Eocene ◽  
Late Eocene ◽  
Apical Position ◽  
Male Specimen ◽  
Stem Group ◽  
Filum Spinosum ◽  
The Family

Another earliest representative of the family Encyrtidae, Sakhalinencyrtus leleji Simutnik gen. et sp. nov., is described and illustrated based on a male specimen from the middle Eocene Sakhalinian amber. Similarly to other Encyrtidae from Sakhalinian amber, the new fossil fundamentally differs from encyrtids from late Eocene European ambers as well as from modern ones. Moreover, it probably belongs to a stem group of the family. The new genus is characterized by extremely apical position of cerci, long veins of the forewing with expanded parastigma, stigmal vein with long uncus, and absence of filum spinosum. The forewing venation of the new genus is very similar to that of Sugonjaevia Simutnik, 2015, but these genera differ by the structure of Mt8, hypopygium, genitalia, and clava.

Archaeocercus gen. nov. (Hymenoptera, Chalcidoidea, Encyrtidae) from Late Eocene Rovno Amber

Zootaxa ◽  
2018 ◽  
Vol 4441 (3) ◽  
pp. 543 ◽  
Author(s):  
S. A. SIMUTNIK ◽  
E. E. PERKOVSKY
Keyword(s):  
Morphological Analysis ◽  
New Genus ◽  
Late Eocene ◽  
Rovno Amber ◽  
Distal Margin ◽  
Female Specimen ◽  
Apical Position ◽  
Comparative Morphological Analysis ◽  
Filum Spinosum ◽  
Fossil Genus

Archaeocercus schuvachinae, gen. et sp. nov., is described and illustrated based on a female specimen from Rovno amber (Ukraine). This fossil genus is characterized by the apical position of cerci on metasoma, absence of filum spinosum on distal margin of linea calva on forewings, triangular hypopygium reaching metasomal apex, mesoscutum with incomplete notauli, long veins on forewings and apically expanded antennae. A brief comparative morphological analysis of some structures of the extinct and extant Encyrtidae is provided. The new genus is considered unplaced within Encyrtidae. 

Protohemiphlebiidae fam. nov., a stem hemiphlebioid damselfly from Cretaceous amber in Kachin

2021 ◽  
pp. SP521-2020-249
Author(s):  
Daran Zheng ◽  
Edmund A. Jarzembowski ◽  
De Zhuo ◽  
André Nel
Keyword(s):  
Phylogenetic Analysis ◽  
Late Jurassic ◽  
New Genus ◽  
Early Evolution ◽  
Relict Species ◽  
Wing Base ◽  
New Family ◽  
Stem Group ◽  
The Family

AbstractHemiphlebiidae are the most basal lestomorphan family following the latest phylogenetic analysis of the Zygoptera: this unique damselfly family today contains one relict species found in the wetlands of Australia. It was, however, very diverse and widespread during the Mesozoic. Nevertheless, very few species were known obscuring the origination and early evolution of the family. Here we propose a new stem hemiphlebioid taxon (Protohemiphlebiidae Zheng, Jarzembowski & Nel, fam. nov.) based on a new genus and two species: Protohemiphlebia zhangi Zheng, Jarzembowski & Nel, sp. nov. and Protohemiphlebia meiyingae Zheng, Jarzembowski & Nel, sp. nov. The new family shares the characters of both Hemiphlebiidae and Coenagrionoidea, but it is more closely related to Hemiphlebiidae in having the pterostigma with a ‘star-shaped’ microsculpture, and AA originating from the wing base slightly distal of Ax0. Protohemiphlebia Zheng, Jarzembowski & Nel, gen. nov. is further considered to belong to the stem group of Hemiphlebioidea, instead of belonging to the Hemiphlebiidae, in possessing pretibial combs and a weakly kinked RP1 below the Pt-brace. The new damselflies will help to calibrate the origin of Hemiphlebiidae, which could be earlier than their current oldest records in the Kimmeridgean (Late Jurassic).

A new genus and species of spoon-winged lacewing from the Cretaceous Crato Formation in Brazil (Neuroptera: Nemopteridae)

2020 ◽  
Vol 3 (4) ◽  
pp. 338-341
Author(s):  
ANDRÉ NEL ◽  
CRISTIAN PELLA
Keyword(s):  
Early Cretaceous ◽  
Fossil Record ◽  
New Genus ◽  
Late Eocene ◽  
New Genus And Species ◽  
Burmese Amber ◽  
Early Oligocene ◽  
Stem Group

The lacewing family Nemopteridae Burmeister, 1839 is very poorly represented in the fossil record with three Early Cretaceous genera of uncertain affinities from the Brazilian Crato Formation, one ‘mid’-Cretaceous representative of the stem group of the Crocinae Navás, 1910 in the Burmese amber, and two Cenozoic nemopterine genera Marquettia Navás, 1913 (late Eocene-early Oligocene) and Paleonemia Claisse et al., 2019 (middle Oligocene). Also two undetermined Nemopterinae are recorded from the late Eocene and the Oligocene (Lu et al., 2019a: Table 1; Claisse et al., 2019).

Rostriamynodon grangeri n. gen., n. sp. of amynodontid (Perissodactyla, Rhinocerotoidea) with comments on the phylogenetic history of Eocene Amynodontidae

1986 ◽  
Vol 60 (4) ◽  
pp. 911-919 ◽  
Author(s):  
William P. Wall ◽  
Earl Manning
Keyword(s):  
Phylogenetic Relationships ◽  
Inner Mongolia ◽  
New Genus ◽  
Late Eocene ◽  
New Genus And Species ◽  
Republic Of China ◽  
Diagnostic Characteristics ◽  
The Family ◽  
History Of ◽  
Early Late

A new genus and species of amynodontid rhinoceros, Rostriamynodon grangeri, from the early Late Eocene of Inner Mongolia, People's Republic of China, is the most primitive amynodontid recognized to date. Rostriamynodon exhibits the major diagnostic characteristics of amynodontids: quadratic M3, preorbital fossa, and loss of upper and lower P1. It differs from more advanced members of the family in its long preorbital region and lower cheek tooth morphology. Comparisons with other Eocene ceratomorphs show the crucial position Rostriamynodon has in determining phylogenetic relationships between rhinocerotoids and tapiroids. Evidence is presented for the monophyly of the Rhinocerotoidea, including amynodontids.

Description of Euroleuctra gen. nov., a new fossil genus of Leuctridae (Insecta: Plecoptera) in Eocene Baltic amber

Zootaxa ◽  
2018 ◽  
Vol 4462 (2) ◽  
pp. 291
Author(s):  
ZHI-TENG CHEN
Keyword(s):  
New Genus ◽  
Baltic Amber ◽  
Wing Venation ◽  
Male Specimen ◽  
Diagnostic Characters ◽  
The Family ◽  
Fossil Genus

A new stonefly genus and species of the family Leuctridae, Euroleuctra gillesi gen. et sp. nov., is described and illustrated based on a well-preserved male specimen in the Eocene Baltic amber from Poland. The new genus is a new member of Leuctridae, exhibiting typical leuctrid diagnostic characters of the terminalia and wing venation. The new genus is also compared with related extant and extinct taxa. 

A New Family of Trichoptera from Asia

1959 ◽  
Vol 91 (12) ◽  
pp. 745-757 ◽  
Author(s):  
Glenn B. Wiggins
Keyword(s):  
New Genus ◽  
Single Species ◽  
Immature Stages ◽  
Single Male ◽  
Male Specimen ◽  
The Past ◽  
New Family ◽  
The Family

In 1906 Nathan Banks described a species, Phryganea latipennis, based on a single male specimen which he had received in a collection of caddisflies from Japan. Assignment of this species to the family Phryganeidae has always seemed the logical course because the adults possessed the typical phryganeid characters of ocelli, four-segmented maxilary palpi in the male, and five-segmented palpi in the female, with a tibia1 spur cout of 2, 4, 4. That the species was a phryganeid has never been questioned in the past, and in a preliminary revision of the familyPhrygancidae, Martynov (1924) created a new genus Phryganopsis for the single species latipennis Banks . A second species, cornuta, from Burma, was added to the genus by Kimmins (1950). It was not until 1951 that the larva and case of P. latipennis were figured and briefly described by Tsuda. This was the first published information on the immature stages of the genus, and the structures of the pupa have still not been made known.

Taxonomy, distribution, and characters of Pre-Oligocene members of the Cantharus group of Pisaniinae (Neogastropoda: Buccinoidea)

2001 ◽  
Vol 75 (2) ◽  
pp. 295-309 ◽  
Author(s):  
Geerat J. Vermeij
Keyword(s):  
New Species ◽  
New Genus ◽  
Middle Eocene ◽  
Late Eocene ◽  
New Genera ◽  
Paris Basin ◽  
Determinate Growth ◽  
One New Species ◽  
Early Late ◽  
A New Species

This paper presents a review of Cretaceous to Eocene genera and species of the Cantharus group of the buccinoidean neogastropod subfamily Pisaniinae, the description of two new genera and one new species, and a nonphylogenetic discussion of character evolution in this group. The new genus Ickarus is introduced for Tritonidea ickei Martin, 1914, from the Nanggulan beds (middle Eocene) of Java, Indonesia. Editharus (type species: Fusus polygonus Lamarck, 1803, middle Eocene of the Paris Basin, France) is a new genus with seven to nine species ranging from the early to late Eocene of Europe. Editharus is unusual in having a labral tooth formed at the angular junction between the adapical and abapical sectors of the outer lip. Editharus angulilabris from the Marinesian (early late Eocene) is a new species from the Paris Basin closely related to E. polygonus. The incidence and expression of several characters has sharply increased in the Cantharus group from the Paleogene to the Neogene. These characters include the presence of lirae (spiral ridges) on the inner side of the outer lip, the presence of a parietal tooth at the adapical end of the inner lip, and determinate growth (as inferred from a unique adult varix). These trends are also exhibited by other Cenozoic gastropod clades.

The oldest Inocelliidae (Raphidioptera) from the Eocene of western North America

2019 ◽  
Vol 151 (04) ◽  
pp. 521-530 ◽  
Author(s):  
Vladimir N. Makarkin ◽  
S. Bruce Archibald ◽  
James E. Jepson
Keyword(s):  
New Species ◽  
North America ◽  
New Genus ◽  
Middle Eocene ◽  
Hind Wing ◽  
Western North America ◽  
Northwestern Montana ◽  
The Family ◽  
Okanagan Highlands ◽  
One New Species

AbstractOne new genus of Inocelliidae (Raphidioptera) with one new species and one undetermined specimen is described from the Eocene of North America: Paraksenocellia borealis new genus, new species from the early Eocene (Ypresian) Okanagan Highlands shale at Driftwood Canyon, British Columbia, Canada (a forewing), and Paraksenocellia species from the middle Eocene (Lutetian) of the Coal Creek Member of the Kishenehn Formation, northwestern Montana, United States of America (a hind wing). These are the oldest records of the family. The new genus possesses many character states that are rare in Inocelliidae, e.g., a very long pterostigma extending to ScP in both the forewings and hind wings; the forewing subcostal space has three crossveins; the forewing and hind wing AA1 are deeply forked; the crossvein between CuA and CuP is located far distad the crossvein 1r-m. Paraksenocellia is confidently a member of the Inocelliidae, as it possesses a proximal shift of the basal crossvein 1r-m (connecting R and M) in the forewing and the loss of the basal crossvein 1r-m in the hind wing, both apomorphies of the family. It shares some character states with the Mesozoic Mesoraphidiidae, which we consider to be mostly stem-group plesiomorphies.

A New Primate from the Middle Eocene of Myanmar and the Asian Early Origin of Anthropoids

Science ◽  
1999 ◽  
Vol 286 (5439) ◽  
pp. 528-530 ◽  
Author(s):  
J.-J. Jaeger ◽  
Tin Thein ◽  
M. Benammi ◽  
Y. Chaimanee ◽  
Aung Naing Soe ◽  
...  
Keyword(s):  
New Genus ◽  
Middle Eocene ◽  
Sister Group ◽  
New Genus And Species ◽  
Asian Origin ◽  
Anthropoid Primate ◽  
Lower Jaw ◽  
The Family ◽  
Early Origin

A new genus and species of anthropoid primate,Bahinia pondaungensis gen. et sp. nov., is described from the Yashe Kyitchaung locality in the Late Middle Eocene Pondaung Formation (Myanmar). It is related to Eosimias, but it is represented by more complete remains, including upper dentition with associated lower jaw fragment. It is interpreted as a new representative of the family Eosimiidae, which corresponds to the sister group of the Amphipithecidae and of all other anthropoids. Eosimiidae are now recorded from three distinct Middle Eocene localities in Asia, giving support to the hypothesis of an Asian origin of anthropoids.

scholarly journals A new fossil drywood termite species from the Late Eocene of France allied to Cryptotermes and Procryptotermes (Isoptera: Kalotermitidae)

2015 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel ◽  
André Nel
Keyword(s):  
New Genus ◽  
Late Eocene ◽  
New Genus And Species ◽  
Termite Species ◽  
Southern France ◽  
Stem Group ◽  
Fossil Genus

A new fossil genus and species of drywood termite (Kalotermitidae) is described and figured from the Late Eocene of southern France.  <em><strong>Huguenotermes septimaniensis</strong> </em>Engel &amp; Nel, new genus and species, is closely allied to <em>Cryptotermes</em> Banks and <em>Procryptotermes</em> Holmgren, perhaps representing part of the stem group leading to the <em>Cryptotermes</em>-<em>Procryptotermes</em> clade.

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