Burmese amber reveals a new stem lineage of whirligig beetle (Coleoptera: Gyrinidae) based on the larval stage

Abstract Burmese amber is well known for preserving unique extinct lineages of insects. Here, we describe a new fossil beetle in its larval stage from Burmese amber. Bayesian and parsimony phylogenetic analysis of 50 morphological characters support this fossil as being sister to both the tribes Dineutini and Orectochilini, representing an extinct stem lineage in Gyrininae. It is described here as a new genus and species of whirligig beetle, Chimerogyrus gigagalea gen. & sp. nov., a taxon that preserves remarkable intermediate features between the whirligig beetle tribe Gyrinini and the crown Orectochilini and Dineutini. This new taxon preserves key features for studying the evolution of characters within the larval stage of the Gyrinidae and highlights the importance of Burmese amber for preserving both stem and crown lineages present during the mid-Cretaceous, before the end-Cretaceous mass extinction event.

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Pinguisoperla, a new fossil genus of Perlidae (Insecta: Plecoptera) from mid-Cretaceous Burmese amber

Zootaxa ◽

10.11646/zootaxa.4425.3.13 ◽

2018 ◽

Vol 4425 (3) ◽

pp. 596 ◽

Cited By ~ 6

Author(s):

ZHI-TENG CHEN

Keyword(s):

New Genus ◽

Morphological Characters ◽

New Genus And Species ◽

Burmese Amber ◽

The Family ◽

Fossil Genus ◽

Dark Coloration

A new fossil stonefly genus and species of the family Perlidae, Pinguisoperla yangzhouensis gen. et sp. nov., is proposed as the second known genus from mid-Cretaceous Burmese amber. The new genus is characterized by its dark coloration and the basally enlarged and curved cerci. Morphological characters of the new genus and species are described, illustrated, and compared with related taxa.

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A new genus and species of enigmatic gorgonian coral from the Ryukyu Archipelago, northwestern Pacific, with a discussion of calcaxonian systematics (Cnidaria, Anthozoa, Octocorallia)

Zootaxa ◽

10.11646/zootaxa.4701.5.2 ◽

2019 ◽

Vol 4701 (5) ◽

pp. 417-433

Author(s):

GARY C. WILLIAMS

Keyword(s):

New Genus ◽

Transverse Section ◽

Morphological Characters ◽

Northwestern Pacific ◽

Molecular Evidence ◽

New Taxon ◽

New Genus And Species ◽

Gorgonian Coral ◽

New Family ◽

The Western Pacific

A new genus and species of flagelliform gorgonian coral is described from mesophotic depth in the western Pacific Ocean. The new taxon exhibits calcaxonian morphological characters and shares affinities to both the clade that includes the Chrysogorgiidae, Primnoidae, and Isididae, as well as the clade that includes the Ellisellidae and the Pennatulacea. Based on morphology alone, placement in a new family is likely justifiable, since it exhibits some characters similar to several diverse calcaxonian taxa, and has unique features as well, but such an outcome awaits supporting molecular evidence. The new genus and species is remarkable among most octocorals in that it has an axis that is quadrangular in transverse section as in the calcaxonian Flagelligorgia gracilis and the pennatulacean Funiculina quadrangularis, and an apparently uniform, solid, highly calcified axial structure that lacks concentric layers or prismatic radiating wedges. In addition, it has distinctive sclerites of the surface coenenchyme that are predominantly elongate warty spindles with median waists, some of which superficially resemble sclerites found in some species of ellisellid gorgonians, but also exhibit ultrastructural features that differentiate them.

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Kotumsaridae, a new family of subterranean amphipod crustaceans from India, with description of Kotumsaria bastarensis, new genus, new species

Zootaxa ◽

10.11646/zootaxa.1589.1.3 ◽

2007 ◽

Vol 1589 (1) ◽

pp. 33-46 ◽

Cited By ~ 6

Author(s):

MOHAMMED MESSOULI ◽

JOHN R. HOLSINGER ◽

Y. RANGA REDDY

Keyword(s):

New Species ◽

New Genus ◽

Indian Subcontinent ◽

Morphological Characters ◽

New Taxon ◽

New Genus And Species ◽

The Third ◽

New Family ◽

The Family ◽

Phylogenetic Affinities

Kotumsaridae, a new family of amphipod crustaceans is described from Kotumsar Cave in the state of Chhattisgarh, India. The family is based on Kotumsaria bastarensis, new genus and species, which is the only known member of the new family recorded to date. Although the new family appears to share some morphological characters with several other taxa from the southern hemisphere considered members of the superfamily Crangonyctoidea, including the New Zealand endemic genus Paracrangonyx, both its taxonomic and phylogenetic affinities remain unclear. Specimens of the new taxon, measuring just over 2 mm in length, were collected from the sediments of a pool in Kotumsar Cave but are believed to have migrated from deeper interstices. Kotumsaria bastarensis is only the third subterranean amphipod recorded to date from the Indian subcontinent.

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New Fossil Tingidae (Hemiptera: Heteroptera) from the Mid-Cretaceous of Myanmar, with Remarks on the Phylogenetic Relationships within the Family

Insects ◽

10.3390/insects12100887 ◽

2021 ◽

Vol 12 (10) ◽

pp. 887

Author(s):

Yuxin Wang ◽

Huiying Tang ◽

Dong Ren ◽

Yunzhi Yao

Keyword(s):

Phylogenetic Relationships ◽

New Genus ◽

Morphological Characters ◽

New Genus And Species ◽

Burmese Amber ◽

The Family ◽

Phylogenetic Status

A new genus and species, Latidorsum carinbifarium Wang, Tang & Yao gen. et sp. nov., is assigned to Phatnomatini (Tinginae), which is described from the mid-Cretaceous Burmese amber. A parsimonious analysis based on 50 morphological characters with 26 terminals clarifies the phylogenetic status of the new fossils and examined relationships among the presently analysed genera of the family Tingidae. The resulting cladogram supporting Tingidae are reconfirmed as monophyletic and divided into four main clades, with relationships as follows: (Vianaidinae + ((Burmacader multivenosus + Burmavianaida anomalocapitata) + (Sinaldocader rasnitsyni + (Gyaclavator kohlsi + Tinginae + Cantacaderinae)))). Anterior length of bucculae distinctly projecting in front of head, sometimes in contact is not a synapomorphic character for Cantacaderinae, which evolves in parallel in Tinginae and Cantacaderinae.

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A new sinoalid froghopper of Fangyuaniini (Hemiptera, Cicadomorpha, Sinoalidae) in mid-Cretaceous Kachin amber from northern Myanmar

Palaeoentomology ◽

10.11646/palaeoentomology.3.1.11 ◽

2020 ◽

Vol 3 (1) ◽

pp. 076-086 ◽

Cited By ~ 1

Author(s):

JUN CHEN ◽

HUI JIANG ◽

QIANQI ZHANG ◽

YAN ZHENG ◽

GUANGJIN WEI ◽

...

Keyword(s):

New Genus ◽

Morphological Characters ◽

New Taxon ◽

Marine Nematode ◽

New Genus And Species ◽

Diagnostic Characters ◽

Nematode Genus

With nine species ascribed to eight genera, the sinoalid froghopper tribe Fangyuaniini has been the most abundant and diverse cicadomorphan group in Kachin amber. Based upon recently reported new fossil materials, we herein revised the diagnostic characters of this tribe, and a new genus and species, Electrala muae Chen & Zhuo, gen. et sp. nov., in Kachin amber is described and illustrated. The new taxon can be discriminated from its relatives by a series of unique morphological characters: the head very broad, almost as wide as thorax, the pronotum strongly shortened and about 4 times as wide as long, and forewings with the bifurcation of M and CuA almost at the same level and distad of claval apex. Additionally, a new generic name, Cretadorus Chen, nom. nov., is proposed for Mesodorus Chen & Wang, 2019, since the latter was already preoccupied by a living marine nematode genus Mesodorus Cobb, 1920.

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<i>Navilithus altivelum</i>: a remarkable new genus and species of deep photic coccolithophores

Journal of Micropalaeontology ◽

10.1144/jm.25.2.141 ◽

2006 ◽

Vol 25 (2) ◽

pp. 141-151 ◽

Cited By ~ 7

Author(s):

Jeremy R. Young ◽

Harald Andruleit

Keyword(s):

New Species ◽

Indian Ocean ◽

New Genus ◽

Molecular Genetic ◽

New Taxon ◽

New Genus And Species ◽

Significant Addition ◽

A New Species ◽

Genetic Results ◽

Basal Structure

Abstract. A very distinctive new deep-photic coccolithophore is described from the NE Indian Ocean. The new species is trimorphic with: 200–300 body coccoliths bearing low spines attached by narrow stems to a basal narrow-rimmed placolith structure; up to 18 circum-flagellar coccoliths with tall sail-like spines; and up to 22 coccoliths with moderately elevated spines occurring both around the circum-flagellar coccoliths and antapically. These features make the coccolithophore unique and require placement in a new species and genus. The basal structure, however, shows similarities to a recently recognized group of narrow-rimmed placoliths. Hence, the new coccolithophore provides some support for this grouping as a significant addition to our understanding of coccolithophore biodiversity, and potentially an explanation for a set of anomalous molecular genetic results. In addition the new taxon provides further evidence that the deep-photic coccolithophore community is more diverse than has been assumed.

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A new cockroach (Blattaria: Caloblattinidae) from the Upper Triassic Xujiahe Formation of Sichuan Province, southwestern China

Insect Systematics & Evolution ◽

10.1163/1876312x-44022101 ◽

2013 ◽

Vol 44 (2) ◽

pp. 167-174

Author(s):

Yan Fang ◽

Haichun Zhang ◽

Bo Wang ◽

Daran Zheng

Keyword(s):

Elemental Analysis ◽

Anterior Margin ◽

New Genus ◽

Sichuan Province ◽

Upper Triassic ◽

Southwestern China ◽

New Taxon ◽

New Genus And Species ◽

X Ray ◽

Xujiahe Formation

A new genus and species of the cockroach family Caloblattinidae, Dazhublattella lini gen. et sp.n., is described from the Upper Triassic Xujiahe Formation of Sichuan Province, in southwestern China. The new taxon is similar to the Triassic Caloblattina mathildae (Geinitz, 1883) (Vršanský & Ansorge 2007) in the venation and pattern, but differs in the less elongated forewing with arched anterior margin. An elemental analysis of the wing is undertaken using Energy Dispersive X-ray analysis.

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A new genus and species of groundwater isopod of the family Protojaniridae (Isopoda: Asellota: Gnathostenetroidoidea) from southern Chile

Zootaxa ◽

10.11646/zootaxa.4966.5.4 ◽

2021 ◽

Vol 4966 (5) ◽

pp. 550-562

Author(s):

JORGE PÉREZ-SCHULTHEISS ◽

GEORGE D. F. WILSON

Keyword(s):

New Genus ◽

South American ◽

New Taxon ◽

Southern Chile ◽

New Genus And Species ◽

The Third ◽

The Family ◽

Apical Lobe ◽

Antennal Scale ◽

Freshwater Springs

A new asellotan isopod of the family Protojaniridae Fresi, Idato & Scipione, 1980 is described from freshwater springs in the Osorno province, Los Lagos region, southern Chile. Wiyufiloides osornoensis gen. & sp. n. is the third South American protojanirid species and the first known groundwater isopod in Chile. The new genus and species is principally characterized by the presence of a vestigial antennal scale, a strongly subchelate pereiopod I and the absence of an apical lobe on the protopod of pleopod II. The new taxon is described in detail and figures are given.

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Ostracoda (Crustacea) from the Archipelago of São Pedro and São Paulo, Equatorial Atlantic, with emphasis on a new Hemicytheridae genus

Iheringia Série Zoologia ◽

10.1590/s0073-47212013000300012 ◽

2013 ◽

Vol 103 (3) ◽

pp. 289-301 ◽

Cited By ~ 2

Author(s):

João C. Coimbra ◽

Silvia R. Bottezini ◽

Cláudia P. Machado

Keyword(s):

New Species ◽

New Genus ◽

Abundant Species ◽

Oceanic Islands ◽

New Taxon ◽

Equatorial Atlantic ◽

New Genus And Species ◽

Specific Level ◽

Recent Sediments ◽

Systematic Knowledge

The present study is a further contribution to the systematic knowledge of the shallow water marine ostracodes from the Brazilian oceanic islands. A total of 14 species belonging to 10 genera and eight families is herein identified. One new genus and species are described and illustrated: Berguecythere insularis gen. nov., sp. nov. In addition to this new taxon, the abundant species Loxocorniculum tricornatum Krutak, 1971, widely distributed in recent sediments in the Gulf of Mexico, Caribbean, north and northeast of Brazil and the Rocas Atoll, along with the cosmopolitan tropical ostracode Triebelina sertata Triebel, 1948, were also identified at specific level. The remaining 11 species were left at the genus level, and should provide new species. Ecological, zoo- and paleozoogeographical aspects were also briefly discussed.

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Claviplatys henryi, a new genus and species of Plataspidae from southern India (Hemiptera, Heteroptera)

ZooKeys ◽

10.3897/zookeys.796.21515 ◽

2018 ◽

Vol 796 ◽

pp. 397-408

Author(s):

Dávid Rédei ◽

Zdeněk Jindra

Keyword(s):

Type Species ◽

New Genus ◽

Morphological Characters ◽

Southern India ◽

New Genus And Species ◽

Systematic Relationships

Claviplatysgen. n. and its type species C.henryisp. n. (Hemiptera: Heteroptera: Plataspidae: Plataspinae) are described from Kerala, India. The new genus is related to the Indomalayan genera Heterocrates Amyot & Serville, 1843, Cratoplatys Montandon, 1894, and Cronion Bergroth, 1891, but differs from them and all other plataspid genera by the peculiarly modified antenna. The morphological characters and systematic relationships of the above genera are discussed.

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