Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Lund, Jens; Pedersen, Kaj Raunsgaard

doi:10.37570/bgsd-1984-33-30

Cited by 24 publications

(5 citation statements)

References 2 publications

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“…3) recorded Gonyaulacysta longicornis from the upper Callovian and lower Oxfordian of the Barents Sea. This species has also been observed in the upper Callovian and Oxfordian of Arctic Russia, Greenland, Arctic Norway and Svalbard by, for example, Bjaerke (1977), Thusu (1978), Lund and Pedersen (1985), Smelror (1986;1988a;1988b) and Århus et al (1989). In view of the many reports of Gonyaulacysta longicornis from the high northerly latitudes, this species was probably a coldwater form (Riding and Michoux, 2013).…”

Section: Comments Gonyaulacysta Longicornis Was Originally Described ...mentioning

confidence: 72%

A review of the Jurassic dinoflagellate cyst genus Gonyaulacysta Deflandre 1964 emend. nov.

Riding

Mariani

Fensome

2022

Review of Palaeobotany and Palynology

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Section: Comments Gonyaulacysta Longicornis Was Originally Described ...mentioning

confidence: 72%

A review of the Jurassic dinoflagellate cyst genus Gonyaulacysta Deflandre 1964 emend. nov.

Riding

Mariani

Fensome

2022

Review of Palaeobotany and Palynology

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“…The youn ger flo ras from Gromadzice and Chmielów (lat est early Hettangian-Pliensbachian) are sim i lar to Scania, Born holm and Green land flo ras in their over all compo si tion (com pare e.g., Möller 1902;Antevs, 1919;Har ris, 1931Har ris, , 1935Har ris, , 1937 but are en riched with nu mer ous ginkgophytes taxa of Asi atic-Si be rian prov e nance. The late Pliensbachian and Toarcian co nif er ous for ests dom i nated by Araucariaceae are sim i lar to those in East Green land (Lund and Pedersen, 1985) and the Dan ish subbasin (Dybkj³r, 1991). The pres ence of Callialasporites dampieri, C. segmentatus and C. trilobatus is note wor thy, be cause dur ing the Ju rassic their source plants usu ally formed for ests in coastal zones (Har ris, 1979;Abbink, 1998).…”

Section: Discussionmentioning

confidence: 99%

Early Jurassic dinosaur-dominated track assemblages, floristic and environmental changes in the Holy Cross Mountains region, Poland

Pacyna

Ziaja

Barbacka

et al. 2022

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As so ci ate Ed i tor: Micha³ ZatoñThe Early Ju ras sic suc ces sion of the Holy Cross Moun tains re gion in Po land of fers a rare op por tu nity to study eco sys tem com plex ity dur ing the evo lu tion and di ver si fi ca tion of early di no saurs, es pe cially her biv o rous ones. The sec tion con sists of con ti nen tal and coastal de pos its con tain ing fos sil as sem blages span ning nearly 25 My of changes in ter res trial plants and some groups of in ver te brates and tetra pods. Based on macrofossils and pol len and spores, the broader char ac ter is tics of the flora in this suc ces sion are pre sented. The flo ral as sem blages show typ i cal Early Ju ras sic char ac ter is tics and con tain lycopsids, sphenopsids, ferns, cycadaleans, bennettitaleans, gnetaleans and ginkgoaleans, as well as co ni fers, and are sim i lar to other Hettangian-Toarcian flo ral suc ces sions in Eu rope, show ing the pres ence of a vast co nif er ous for est dom inated by Hirmeriella in the early Hettangian, re placed by ginkgophyte-dom i nated flo ras in youn ger stages and araucarian coni fer-dom i nated for ests in the late Pliensbachian. Di no saurs are doc u mented mainly from their trace fos sils (tracks and cop ro lites). Six dis tinct track as sem blages (stratigraphically sep a rated ichnoassemblages) of dif fer ent ages can be iden tified. Cur rent ev i dence in di cates that while Anomoepus tracks are abun dant through out the long Hettangian-late Pliensbachian in ter val, me dium-sized to large ornithischian tracks do not oc cur be low the lower-mid dle Hettangian tran sition zone, as so ci ated with the first ma jor ma rine trans gres sion in the re gion. Hettangian strata with dif fer ent theropod tracks (Grallator, Anchisauripus, Eubrontes, Kayentapus, cf. Megalosauripus), small Anomoepus tracks, nu mer ous me dium-sized Anomoepus-like tracks, Moyenisauropus tracks, tetradactyl tracks of sauropodomorphs (cf. Pseudotetrasauropus) and oval-shaped tracks of sauro pods (Parabrontopodus) sig nif i cantly con trast with the higher part of the Lower Ju ras sic suc cession (up per Pliensbachian Drzewica For ma tion and mid dle-up per Toarcian Borucice For ma tion) con tain ing new types of me dium-sized to large theropod tracks (Therangospodus), small and me dium-sized bird-like tridactyl tracks (cf. Trisauropodiscus, cf. Anomoepus), ex cep tion ally large, oval-shaped sauropod tracks (Sauropoda indet.), and new types of me dium-sized and large ornithischian tracks (cf. Deltapodus, cf. Anomoepus). This points to a no tice able dif fer ence be tween the Hettangian and late Pliensbachian-Toarcian di no saur ichnofaunas and may fa cil i tate the study of re gional and global changes and cor re la tions. Both the palaeofloras and di no saur trace fos sils doc u ment eco sys tem di ver sity and eco sys tem changes, pre sented here in re view form. The na ture of these changes re quires more de tailed study, but pre lim i nary re sults sug gest the oc cur rence of rather com plex and pro nounced trans for ma tions in the ...

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“…Lund and Pedersen (1985)* late Pliensbachian – early Kimmeridgian, early – late Jurassic (38 samples).…”

Section: Geographic Coveragementioning

confidence: 99%

The GEUS Palynology, Nannofossil, and Microfossil Arctic Slide Collection

Nøhr‐Hansen

Piasecki

Śliwińska

et al. 2023

Collections: A Journal for Museum and Archives Professionals

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Since 1976 more than 25,000 Arctic sediment samples have been processed for their palynological, nannofossil, or microfossil content at the Geological Survey of Greenland (GGU) and the Geological Survey of Denmark (DGU); both institutes are now merged into the Geological Survey of Denmark and Greenland (GEUS). The samples represent nearly all ages from the Neoproterozoic to the Neogene, though dominated by the Mesozoic. A large proportion of the samples were processed for palynomorphs. Up to ten slides have been produced for each palynological sample and usually one slide is produced for each nannofossil and microfossil sample, making the GEUS collection one of the largest Arctic slide collections with more than 200,000 slides. All type specimens and some specimens illustrated in publications listed here have been assigned MGUH numbers ( Museum Geologica Universitas Hafniensis) and are housed in the type collection of the Geological Museum of the University of Copenhagen, now part of the Natural History Museum of Denmark.

show abstract

Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Cited by 24 publications

References 2 publications

A review of the Jurassic dinoflagellate cyst genus Gonyaulacysta Deflandre 1964 emend. nov.

A review of the Jurassic dinoflagellate cyst genus Gonyaulacysta Deflandre 1964 emend. nov.

Early Jurassic dinosaur-dominated track assemblages, floristic and environmental changes in the Holy Cross Mountains region, Poland

The GEUS Palynology, Nannofossil, and Microfossil Arctic Slide Collection

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