Lower Cretaceous

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Edmund A Jarzembowski - One of the best experts on this subject based on the ideXlab platform.

  • a new stick insect phasmatodea susumanioidea from the Lower Cretaceous wealden group of southern england
    Cretaceous Research, 2020
    Co-Authors: Chunpeng Xu, Edmund A Jarzembowski, Yan Fang
    Abstract:

    Abstract A new species of stick insect, Cretophasmomima traceyae sp. nov., is proposed based on a forewing preserved in the Lower Cretaceous Weald Clay Formation (Wealden Group) of Surrey, southern England, and attributed to the genus Cretophasmomima Kuzmina, 1985 of the subfamily Susumaniinae (order Phasmatodea: superfamily Susumanioidea). As the first record of the Susumaniioidea from the English Wealden, this new species establishes the presence of Susumaniioidea in northwest Europe during the Early Cretaceous and extends the global distribution of susumanioids (stem-group stick insects) to the Cretaceous of Europe.

  • a new stick insect phasmatodea susumaniidae from the Lower Cretaceous yixian formation of china
    Cretaceous Research, 2019
    Co-Authors: Chunpeng Xu, Edmund A Jarzembowski, Haichun Zhang, Yan Fang
    Abstract:

    Abstract A new genus and species, Liutiaogoucuna arachnoidea gen. et sp. nov., is established based on a stick insect with almost complete four wings preserved in the Lower Cretaceous Yixian Formation of Inner Mongolia, northeastern China, and assigned to the subfamily Susumaniinae of Susumaniidae (Phasmatodea). The discovery of the new taxon provides novel morphological diversity of Susumaniinae, both in forewing and hindwing venation. The high diversity of stick insects with four wings developed in the Early Cretaceous Jehol Biota indicates that even lack of advanced camouflage, this kind of Phasmatodea had good adaptability in the Early Cretaceous Jehol ecosystem.

  • new non biting midges diptera chironomidae from Lower Cretaceous wealden amber of the isle of wight uk
    Cretaceous Research, 2019
    Co-Authors: Viktor Baranov, Wojciech Gilka, Marta Zakrzewska, Edmund A Jarzembowski
    Abstract:

    Abstract Non-biting midges (Chironomidae) from Lower Cretaceous Wealden amber of the Isle of Wight (Lower Barremian, ca. 128 Ma) are reviewed. As a result, Dungeyella gavini Jarzembowski, Azar et Nel, 2008, the only chironomid species known from this amber deposit, is for the first time recognised from the adult male, and the systematic position of Dungeyella within the subfamily Buchonomyiinae is established. Libanodiamesa simpsoni sp. nov. (Prodiamesinae), now found in Wealden amber, is the second species of the genus previously only recorded from Lower Cretaceous Lebanese amber. A detailed morphological analysis revealed characters (wing venation patterns, genital apparatus structure) defined as unique for the two genera, the diagnoses of which are amended. Biogeographical features of the Wealden amber Chironomidae are also discussed against the background of their fossil records from the Cretaceous.

  • new cymatophlebiid dragonflies from the Lower Cretaceous of china and england odonata anisoptera cymatophlebiinae valdaeshninae
    Cretaceous Research, 2018
    Co-Authors: Edmund A Jarzembowski, Daran Zheng, Bo Wang, Suchin Chang, Haichun Zhang
    Abstract:

    Abstract Cymatophlebia y ixianensis sp. nov., the first Chinese Cretaceous cymatophlebiid dragonfly (cymatophlebiine), is described from the Lower Cretaceous Yixian Formation of western Liaoning, NE China. Cymatophlebia y ixianensis sp. nov. has a forked RP2 near the wing margin differing from other species of Cymatophlebia Deichmuller 1886. A new valdaeshnine dragonfly, Valdaeshna mikei sp. nov., is described from the Lower Cretaceous Upper Weald Clay of southern Surrey, SE England, differentiated from Valdaeshna surreyensis Jarzembowski, 1988 in its larger size, a long Pt-brace, and a broad area between Rspl and IR2. An updated diagnosis for Valdaeshna Jarzembowski, 1988 is proposed.

  • a new afrograptid diplostraca estheriellina from the Lower Cretaceous of southern england
    Cretaceous Research, 2017
    Co-Authors: Huanyu Liao, Edmund A Jarzembowski, Yanbin Shen, Oscar Florencio Gallego, Diying Huang
    Abstract:

    The Family Afrograptidae is a ‘conchostracan’ group with multiple radial costae reaching to the umbo on their carapaces. It comprises four described genera: Afrograpta, Camerunograpta, Congestheriella and Graptoestheriella with a total of thirteen described species which are occasionally reported from the Jurassic and the Cretaceous in Africa, Europe and South America (i.e. Afrograpta from the Upper Cretaceous of Cameroon; Camerunograpta from the Jurassic to Cretaceous of Cameroon; Congestheriella from the Jurassic to Upper Cretaceous of the Congo Basin, Brazil, Bulgaria, Venezuela and Argentina; and Graptoestheriella from the Upper Jurassic to Lower Cretaceous of Brazil). A new genus and a new species, Surreyestheria ockleyensis gen. et sp. nov., belonging to the Family Afrograptidae from the Lower Cretaceous (Lower Barremian) Upper Weald Clay Formation of Ockley Village, Surrey County, southern England is described in this paper. The new genus mainly differs from the other four genera by the special reticulate ornamentation on its carapace. It indicates that the Family Afrograptidae was more diverse and more widely distributed in the late Mesozoic than previously supposed. Afrograptidae is a special branch of Estheriellina the latter originating in the late Palaeozoic and the former in the early Mesozoic. Afrograptids, as a whole had been widespread across Pangea in the Early Jurassic.

Fernando Barrosobarcenilla - One of the best experts on this subject based on the ideXlab platform.

  • avian and crocodilian eggshells from the upper barremian site of vadillos 1 Lower Cretaceous cuenca province spain
    Cretaceous Research, 2018
    Co-Authors: A Bravo, Paloma Sevilla, Fernando Barrosobarcenilla
    Abstract:

    The new upper Barremian microfossil site of Vadillos-1 (Lower Cretaceous, Beteta Gorges, Cuenca province, Spain) has yielded a rich fossil assemblage consisting of numerous eggshell fragments along with diverse skeletal remains of fishes, amphibians, turtles, crocodyliforms and dinosaurs. Crocodilian eggshells constitute the main fraction of the eggshell assemblage which includes abundant material belonging to the oofamily Krokolithidae, as well as a new type of crocodilian eggshells (Neokrokolithes trigonalis oogen. et oosp. nov.) characterised by a type of ornamentation and microstructure of the basal knobs not described before. Few fragments of the oospecies cf. Mycomorphoolithus kohringi, attributed to non-eusuchian crocodylomorphs, have been also found in this site thus expanding the record of this oospecies to the upper Barremian. The eggshell assemblage has also yielded the first record of avian eggshells (Tristratioolithus minuta oogen. et oosp. nov.) from the Lower Cretaceous of Europe. Comparisons with Lower Cretaceous avian eggshells suggest its possible attribution to Enantiornithes. The tiny eggshell fragments assemblage found at Vadillos-1 site is representative of a small sized fauna. Besides, the diversity appears strongly biased with >90% of the eggshells belonging to crocodilians and approximately 9% to Aves. As established for similar outcrops, this bias may reflect differences in preservation of eggshell types or represent, at least in part, a wetland ground nesting site.

Dany Azar - One of the best experts on this subject based on the ideXlab platform.

  • new cecidomyiidae from the Lower Cretaceous lebanese amber diptera
    Performance Evaluation, 2020
    Co-Authors: Dany Azar, Andre Nel
    Abstract:

    The oldest representatives of several cecidomyiid tribes are characterised and described from the Lower Cretaceous Lebanese amber, viz. a Lestremiinae with uncertain tribe affinities; two Winnertziinae Winnertziini: Libanoclinorrhytis jaschhofi gen. et sp. nov., and Lebanowinnertzia perrichoti gen. et sp. nov.; and two Porricondylinae Dicerurini: Cretadicerura salimi gen. et sp. nov. and Libanohilversidia doryi gen. et sp. nov. These taxa are the oldest representatives of their respective tribes.

  • the oldest megapodagrionidae odonata zygoptera discovered in the Lower Cretaceous yixian formation china
    Cretaceous Research, 2018
    Co-Authors: Diying Huang, Dany Azar
    Abstract:

    Abstract Cretapodagrion sibelleae gen. et sp. nov., oldest representative and first Mesozoic ‘Megapodagrionidae’, is described on the basis of a complete wing from the Lower Cretaceous of Yixian Formation (ca. 124.6 Ma) in China. It shows some similarities with the three extant genera of the ‘Megapodagrioninae’ and the enigmatic genus Mesopodagrion .

  • a new weevil coleoptera nemonychidae oropsini trib nov from Lower Cretaceous lebanese amber
    Cretaceous Research, 2017
    Co-Authors: Andrei A Legalov, Dany Azar, Alexander G Kirejtshuk
    Abstract:

    Abstract A new weevil, Oropsis marinae gen. et sp. nov., Oropsini trib. nov., is described from Lower Cretaceous Lebanese amber. The new genus is similar to the genera Libanorhinus Kuschel et Poinar, 1993 and Arra Peris, Davis et Delclos, 2014. It differs from Libanorhinus in the long abdominal ventrite 1, prosternal process distinctly extends beyond procoxal cavities and tarsomere 3 weakly bilobed, and from Arra in the arcuate pronotal sides, antennal club with fused articles, long abdominal ventrite 1, procoxal cavities probably open posteriorly, and tarsal claws without teeth. Oropsini trib. nov. differs from the tribes Paleocartini, Selengarhynchini and Metrioxenoidini in the transversely oval and separated procoxal cavities, weakly convex and oval eyes, and the trochanters completely separating femora and coxae.

  • first fossil insect from Lower Cretaceous lebanese amber in syria diptera ceratopogonidae
    Cretaceous Research, 2015
    Co-Authors: Joanna Choufani, Dany Azar, Wafaa Elhalabi, Andre Nel
    Abstract:

    Abstract Lebanoculicoides bloudani a new species of Ceratopogonidae from the Lower Cretaceous ambers of Syria and Lebanon is studied. The new species is characterized, described, illustrated, and compared with the other fossil taxa of the same extinct genus. A key to the species of the genus Lebanoculioides is proposed.

  • scale insects from Lower Cretaceous amber of lebanon hemiptera sternorrhyncha coccinea
    2008
    Co-Authors: Jan Koteja, Dany Azar
    Abstract:

    Results of investigations on Lower Cretaceous Lebanese amber (125 - 135 myr) are presented, based on amber pieces containing coccid inclusions, collected in Mdeyrij/Hammana in central Lebanon and (one inclusion) in Jezzine in southern Lebanon. Seven groups at family level have been recognized, one extant, two supposedly extant, one extinct and three new families: Ortheziidae with Cretorthezia hammanaica gen. et sp. n.; Hammanococcidae fam. n. with Hammanococcus setosus gen. et sp. n; Lebanococcidae fam. n. with Lebanococcus longiventris gen. et sp. n.; ?Steingeliidae with Palaeoste­ ingelia gen. n. and P. acrai sp. n. and P. caudata sp. n.; ?Electrococcidae with Apticoccus minutus gen. et. sp. n.; ?Putoidae with Palaeotupo danieleae gen. et sp. n.; and Pennygullaniidae fam. n. with Pennygullania electrina gen. et sp. n. All taxa have been based on alate males; two crawlers and two older stage larvae are believed to be congeneric with Cretorthezia, Hammanococcus, Palaeosteingelia and Pennygullania. All species bear peculiar features or combinations of characteristics, but there is no doubt as to their coccid affiliation. Archeococcid groups predominate in the Lebanese amber fauna, compared with neococcids which are represented by a form related to Putoidae and a species that cannot be placed in any extant group. Considering also impression fossils, the Lower Cretaceous fauna is represented by seven archeococcid and two neococcid families. Coccids similar to extant Steingeliidae constitute about 55 % of the Lebanese scale insects (18 inclusions); other groups are represented by 1-3 inclusions. Similar proportions have been found in new Jersey amber (with Grimaldiellidae dominating), Taimyr amber (Inkaidae dominating), and Baltic amber (Matsucoccidae prevailing). It is suggested that all or most of the species found in Lebanese amber fed on the resin exudating host, supposedly an araucarian, or a cheirolepidian.

Chunpeng Xu - One of the best experts on this subject based on the ideXlab platform.

  • a new stick insect phasmatodea susumanioidea from the Lower Cretaceous wealden group of southern england
    Cretaceous Research, 2020
    Co-Authors: Chunpeng Xu, Edmund A Jarzembowski, Yan Fang
    Abstract:

    Abstract A new species of stick insect, Cretophasmomima traceyae sp. nov., is proposed based on a forewing preserved in the Lower Cretaceous Weald Clay Formation (Wealden Group) of Surrey, southern England, and attributed to the genus Cretophasmomima Kuzmina, 1985 of the subfamily Susumaniinae (order Phasmatodea: superfamily Susumanioidea). As the first record of the Susumaniioidea from the English Wealden, this new species establishes the presence of Susumaniioidea in northwest Europe during the Early Cretaceous and extends the global distribution of susumanioids (stem-group stick insects) to the Cretaceous of Europe.

  • a new stick insect phasmatodea susumaniidae from the Lower Cretaceous yixian formation of china
    Cretaceous Research, 2019
    Co-Authors: Chunpeng Xu, Edmund A Jarzembowski, Haichun Zhang, Yan Fang
    Abstract:

    Abstract A new genus and species, Liutiaogoucuna arachnoidea gen. et sp. nov., is established based on a stick insect with almost complete four wings preserved in the Lower Cretaceous Yixian Formation of Inner Mongolia, northeastern China, and assigned to the subfamily Susumaniinae of Susumaniidae (Phasmatodea). The discovery of the new taxon provides novel morphological diversity of Susumaniinae, both in forewing and hindwing venation. The high diversity of stick insects with four wings developed in the Early Cretaceous Jehol Biota indicates that even lack of advanced camouflage, this kind of Phasmatodea had good adaptability in the Early Cretaceous Jehol ecosystem.

Yan Fang - One of the best experts on this subject based on the ideXlab platform.