Remarkable stasis in a phloeocharine rove beetle from the Late Cretaceous of New Jersey (Coleoptera, Staphylinidae)

2013 ◽  
Vol 87 (2) ◽  
pp. 177-182 ◽  
Author(s):  
Stylianos Chatzimanolis ◽  
Alfred F. Newton ◽  
Carmen Soriano ◽  
Michael S. Engel
Keyword(s):  
New Jersey ◽  
New Species ◽  
Late Cretaceous ◽  
Phase Contrast ◽  
Detailed Examination ◽  
Single Individual ◽  
Fossil Species ◽  
Rove Beetle ◽  
Extant Genus ◽  
Morphological Stasis

The first definitive fossil species of the rove beetle (Staphylinidae) subfamily Phloeocharinae is described and figured from a single individual preserved in Late Cretaceous (Turonian) amber from New Jersey. The species is representative of the extant genus Phloeocharis Mannerheim and is described as Phloeocharis agerata Chatzimanolis, Newton, and Engel, new species. The specimen was imaged using traditional light microscopy as well as synchrotron propagation phase contrast microtomography, permitting a detailed examination of otherwise difficult to observe features. Examination revealed remarkable homogeneity across many characters with those of extant relatives, highlighting considerable morphological stasis in the genus over the last 90 million years.

New species from Late Cretaceous New Jersey amber and stasis in subfamily Attageninae (Insecta: Coleoptera: Dermestidae)

2016 ◽  
Vol 90 (3) ◽  
pp. 491-498 ◽  
Author(s):  
David Peris ◽  
Jiří Háva
Keyword(s):  
New Jersey ◽  
New Species ◽  
Late Cretaceous ◽  
Diagnostic Features ◽  
Fossil Species ◽  
Detailed Classification ◽  
The Family ◽  
Recent Species ◽  
The Stability ◽  
Synchrotron Microtomography

AbstractA new fossil species of Dermestidae (Insecta: Coleoptera), preserved in Late Cretaceous (Turonian) amber from New Jersey, is described asAttagenus(Aethriostoma)turonianensisn. sp. The specimen is fossilized in translucent amber, but 3D imaging using propagation phase-contrast X-ray synchrotron microtomography allowed detailed classification and description. This species is the oldest representative of the subfamily Attageninae and the third fossil species described in the family from the entire Mesozoic. Dermestidae comprise beetle species that typically feed on carcasses, although some Recent species ofAttagenusLatreille, 1802 are known to feed on plant debris, which is highly abundant in amber deposit sediments. This new species is evidence for diversification in the family during the Early Cretaceous as well as long morphological conservation of diagnostic features of the genusAttagenusfrom the Late Cretaceous. Analyzing the taxa from Mesozoic ambers that show stasis, the small size of the specimens together with a specific ecology could explain the stability of these lineages.

A second fossil species of the enigmatic rove beetle genus Charhyphus in Eocene Baltic amber, with implications on the morphology of the female genitalia (Coleoptera: Staphylinidae: Phloeocharinae)

2021 ◽  
pp. 1-12
Author(s):  
Shûhei YAMAMOTO ◽  
Alexey V. SHAVRIN ◽  
Kristaps KAIRIŠS
Keyword(s):  
New Species ◽  
Body Part ◽  
The Body ◽  
Baltic Amber ◽  
Micro Computed Tomography ◽  
Single Male ◽  
Fossil Species ◽  
Rove Beetles ◽  
Rove Beetle ◽  
Extant Species

ABSTRACT Phloeocharinae is a small and likely non-monophyletic subfamily of rove beetles. The enigmatic genus Charhyphus Sharp, 1887 has long been placed in Phloeocharinae, whereas recent studies have found it to be phylogenetically very distant from the core members of this subfamily, suggesting the possibility that it actually deserves its own separate subfamily status. So far, the sole definitive fossil record for Charhyphus is known based on a single male from Eocene Baltic amber as represented by †Charhyphus balticus Shavrin, 2020. Here, we describe and illustrate another new Charhyphus species, †Charhyphus serratus sp. nov. Yamamoto & Shavrin, from Baltic amber based on a well-preserved female fossil. Considering the general proportions of the body and the head, this new species is most similar to †C. balticus. The new species differs from all known species by the development of strong serration of the lateral edges of the pronotum and features of the shape of the apical margin of the mesoventrite. By using X-ray micro-computed tomography, we succeeded in visualising not only the general habitus but also each individual body part, recovering a previously undocumented sclerite on the female internal genital segments in the genus. Morphological features of extinct and extant species of Charhyphus are briefly discussed. Figures of all extant Charhyphus species and a key for the genus are also provided. Our study is important for considering possible higher palaeodiversity, more common occurrence, and palaeobiogeography of Charhyphus.

New species of Compsocidae (Insecta, Psocodea) from Cretaceous Burmese amber

Zootaxa ◽  
2017 ◽  
Vol 4320 (3) ◽  
pp. 597 ◽  
Author(s):  
PAVEL SROKA ◽  
ANDRÉ NEL
Keyword(s):  
New Species ◽  
Late Cretaceous ◽  
Fossil Species ◽  
Burmese Amber ◽  
Diagnostic Characters ◽  
The Past ◽  
The Family ◽  
First Time

A new fossil species of the family Compsocidae, namely Burmacompsocus coniugans sp. nov. is described from Late Cretaceous Burmese amber. Diagnostic characters separating the new species from the previously known representatives of the genus are discussed. Details of mouthparts and genitalia are described for the genus for the first time. The discovery of the new species supports the hypothesis of higher Compsocidae diversity existing in the past compared with the present. 

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.

scholarly journals First Record of a living Platycopida (Crustacea, Ostracoda) from Antarcticwaters and a Discussion on Cytherella serratula (Brady, 1880)

Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 349 ◽  
Author(s):  
SIMONE N. BRANDÃO
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Intraspecific Variation ◽  
Late Cretaceous ◽  
First Record ◽  
Review Of The Literature ◽  
Antarctic Region ◽  
Fossil Species ◽  
O2 Concentration ◽  
The Antarctic

Previous records of Platycopida (Ostracoda) from the Antarctic region of the Southern Ocean include only a few fossil species from the Late Cretaceous to the Palaeocene: Cytherelloidea megaspirocostata Majoran & Widmark, 1998, [sic] Cytherella serratula (Brady, 1880), plus seven species left in open nomenclature. The present study documents the first record of a living platycopid from the Antarctic region and describes Cytherella rwhatleyi sp. nov. as new. Comparison among specimens collected at stations 60° longitude and 10° of latitude apart from each other show that very little intraspecific variation in outline and ornamentation of the valves, as well as on the hemipenis is presented by this new species. Otherwise, clear differences on valve and hemipenis are observed between different species (herein, Jellinek & Swanson 2003). Review of the literature indicates that several species (with great differences in valve outline and ornamentation) have been erroneously assigned to Cytherella serratula (Brady, 1880) demonstrating that this so-called cosmopolitan taxon is in truth most probably restricted to bathyal depths of the Northwestern Atlantic. Finally, the abundances of Cytherella rwhatleyi sp. nov. in the samples studied herein (considering O2 concentration measurements) contradict the proposed relationship between Platycopida and O2 concentration in water masses (Whatley et al. 2003).

A new species of Forcipomyia from Paleocene Sakhalin amber (Diptera: Ceratopogonidae)

2013 ◽  
Vol 82 (1) ◽  
pp. 59-62 ◽  
Author(s):  
Ryszard Szadziewski ◽  
Elżbieta Sontag
Keyword(s):  
New Species ◽  
Fossil Species ◽  
Extant Genus ◽  
A New Species ◽  
Sakhalin Amber

Abstract Forcipomyia nadicola sp. n. from Paleocene Sakhalin amber (60 mya) is described and illustrated. This is the oldest named fossil species reported in the extant genus Forcipomyia and the tribe Forcipomyiini.

A new species of parasitoid wasps (Hymenoptera: Diapriidae: Belytinae) from Eocene Baltic amber

2020 ◽  
Vol 3 (6) ◽  
pp. 614-622
Author(s):  
CORENTIN JOUAULT ◽  
ANDRÉ NEL
Keyword(s):  
New Species ◽  
Baltic Amber ◽  
Parasitoid Wasps ◽  
Male Specimen ◽  
Fossil Species ◽  
Extant Genus ◽  
A New Species

Acropiesta perrichoti sp. nov., a new belytine wasp is described based on a well preserved male specimen from Eocene Baltic amber. This is the second fossil species of this extant genus, known already from the same amber deposit by Acropiesta janzeni Buhl, 2002.

scholarly journals Cupressinoxylon Jiayinense, A New Species Of The Late Cretaceous From Heilongjiang Province, China

IAWA Journal ◽  
1996 ◽  
Vol 17 (3) ◽  
pp. 319-326 ◽  
Author(s):  
Wang Ru-feng ◽  
Wang Yu-fe ◽  
Chen Yong-zhe
Keyword(s):  
New Species ◽  
Late Cretaceous ◽  
Northeast China ◽  
Heilongjiang Province ◽  
Growth Rings ◽  
Extant Genus ◽  
Ray Cells ◽  
Coniferous Wood ◽  
Resin Canals ◽  
A New Species

Cupressinoxylon jiayinense spec. nov., a new species of silicified coniferous wood, is described from the Late Cretaceous in Jiayin County, Heilongjiang Province, Northeast China. The growth rings are distinct. The transition from earlywood to latewood is gradual. Rays range from 1- to 2-seriate, and are 4-68 cells high. Both horizontal and tangential walls of ray cells are smooth. The cross-field pitting is cupressoid. There are 2 or 3 pits per cross field. Ray tracheids are rarely present. Wood parenchyma is abundant and diffuse. Resin canals are absent. These features indicate affinities with Cupressaceae, specifically with some members of the extant genus Cupressus.

Remarkable new fossil species of Schistostoma Becker (Diptera: Dolichopodidae: Microphorinae) from mid-Cretaceous Burmese amber

Zootaxa ◽  
2019 ◽  
Vol 4624 (1) ◽  
pp. 121-131 ◽  
Author(s):  
SCOTT E. BROOKS ◽  
JEFFREY M. CUMMING ◽  
DAVID A. GRIMALDI
Keyword(s):  
New Species ◽  
Fossil Species ◽  
Burmese Amber ◽  
Extant Genus ◽  
Secondary Sexual

Two closely related and distinctive species of Schistostoma Becker, i.e. Schistostoma burmanicum sp. nov. and Schistostoma foliatum sp. nov., are described from two male specimens preserved in mid-Cretaceous Burmese amber and recorded as the first known fossil representatives of this extant genus of Microphorinae. Both species possess greatly enlarged lamellate fore tibiae and modified leg chaetotaxy that are presumably male secondary sexual features. The generic limits of Schistostoma are briefly discussed and a rationale for the inclusion of these new species is provided. 

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