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Tytuł:
Docodont nature of Cyrtlatherium, an upper Bathonian mammal from England
Autorzy:
Sigogneau-Russell, D
Powiązania:
https://bibliotekanauki.pl/articles/22248.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Cyrtlatherium
docodont
Middle Jurassic
mammal
Cyrtlatherium canei
England
tooth
Upper Bathonian
remains
Bathonian
Źródło:
Acta Palaeontologica Polonica; 2001, 46, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New teeth of allotherian mammals from the English Bathonian, including the earliest multituberculates
Autorzy:
Butler, P M
Hooker, J.J.
Powiązania:
https://bibliotekanauki.pl/articles/22031.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
English Bathonian
tooth cusp
mammal
tooth
Allotheria
Jurassic
Bathonian
multituberculate
Haramiyida
dentition
new tooth
paleontology
Multituberculata
Opis:
Twenty one isolated multituberculate−like teeth are described from the Forest Marble (late Bathonian) of Oxfordshire and Dorset, England. Eighteen are additional to the teeth described as Eleutherodon oxfordensis by Kermack et al. (1998), and three of those are placed in new taxa. Six new molars of Eleutherodon provide further information on variation in size, proportion and root pattern. Millsodon superstes gen. et sp. nov. (family indeterminate), based on first and last lower molars and a referred upper molar, has resemblances to Haramiyidae and Theroteinidae. Kirtlingtonia catenata gen. et sp. nov. (family indeterminate), based on last upper molars and a probable upper premolar, has a slight resemblance to Eleutherodon, and also to M2 of some paulchoffatiid multituberculates. Kermackodon multicuspis gen. et sp. nov. (family Kermackodontidae nov.) and Hahnotherium antiquum gen. et sp. nov. (family Hahnotheriidae nov.) are based on second upper molars, recognised as multituberculate by their horizontal wear and inferred occlusal displacement with respect to m2. A lower molar referred to H. antiquum confirms this. A blade−like lower premolar and an upper premolar with conical cusps, referred to Kermackodon, are multituberculate−like, but distinctive. Divergence between the two Bathonian multituberculates indicates that the order originated much earlier, more probably from a haramiyid than from a morganucodontid source. Mojo is regarded as probably a haramiyid. The Hahnodontidae, which have basined wear, are removed from the Multituberculata to the “Haramiyida”.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discovery of Middle Jurassic mammals from Siberia
Autorzy:
Averianov, A O
Lopatin, A.V.
Skutschas, P.P.
Martynovich, N.V.
Leshchinskiy, S.V.
Rezvyi, A.S.
Krasnolutskii, S.A.
Fayngertz, A.V.
Powiązania:
https://bibliotekanauki.pl/articles/945775.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
docodonta
morganucodon
dentary
anatomy
bathonian
jurassic
siberia
Opis:
Mammal remains from the Middle Jurassic (Bathonian) Berezovsk Quarry on the south of Krasnoyarsk Territory, West Siberia, Russia are referred to Docodonta indet. (two edentulous fragmentary dentaries) and Mammalia indet. (a single−rooted tooth). The dentaries exemplify a unique combination of plesiomorphic characters found among stem mammals only in Docodonta and Morganucodon: well developed Meckel’s groove, trough for postdentary bones with overhanging medial ridge and a diagonal ridge on the floor separating the “adductor fossa” and angular facet, and well developed and posteroventrally directed pseudangular process with facet for the reflected lamina of angular. Both specimens share with Docodonta the prearticular facet placed ventral to the angular facet and extending posteriorly to the mandibular foramen. This facet is not present in Morganucodon, where the prearticular lies medial to the angular. Medial position of the prearticular in Morganucodon is connected with the compound jaw articulation in this genus, in which a rudimentary articular−quadrate mandibular joint is present medially to the dentary−squamosal joint. In Docodonta indet. from Berezovsk Quarry, Haldanodon and Docodon the position of the prearticular ventral to the angular is connected with the position of the articular complex ventral to the dentary condyle. Such articular complex could not function as a mandibular joint and postdentary bones in Docodonta were used solely for sound transmission. One specimen from Berezovsk Quarry shares with Morganucodon a groove for replacement dental lamina, which was not reported previously for Docodonta. Mammal remains from Berezovsk Quarry are among the oldest occurrences for Docodonta, the first record of Jurassic mammals for Siberia, and only second such record for the whole of Russia.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 4; 789-797
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoenvironmental implications of Middle Jurassic trace fossils from the Jaisalmer Formation, India, with emphasis on the ichnogenus Asteriacites Lumbricalis von Schlotheim
Autorzy:
Gurav, S.S.
Kulkarni, K. G.
Paranjape, A. R.
Borkar, V. D.
Powiązania:
https://bibliotekanauki.pl/articles/191728.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Asteriacites
Heliophycus
Bathonian
opportunistic colonisation
Jaisalmer Basin
Rajasthan
Opis:
The Hamira Member (Bathonian) of the Jaisalmer Formation records the first marine transgression within the Jaisalmer Basin. It also contains the ichnogenus Asteriacites von Schlotheim, 1820, as documented here for the first time. This was used to refine interpretations of the palaeoenvironment. Crowded ophiuroid resting traces, Asteriacites lumbricalis, occur in a silty limestone unit 1 m thick. This is preceded by a monospecific assemblage of Diplocraterion parallelum towards the base of this unit, while towards the top there is an assemblage, comprising Gyrochorte comosa, Protovirgularia rugosa, Rhizocorallium commune and Rosselia socialis. Colonisation by the Asteriacites trace makers occurred in a shallow-water, marginal-marine, normal-salinity, fully oxygenated, high-energy setting with steady rates of sedimentation. From an ichnological perspective, the sequence investigated shows a shift in environmental conditions from the middle shoreface to the off shore transition zone. Addressing the Asteriacites/Heliophycus nomenclatorial dilemma, Knaust (2012) suggested that the generic designation Asteriacites should be retained. His view was found to be appropriate and supported to avoid further confusion.
Źródło:
Annales Societatis Geologorum Poloniae; 2014, 84, 3; 249--257
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka palinofacjalna najwyższego bajosu i batonu okolic Włocławka
Autorzy:
Barski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2061390.pdf
Data publikacji:
2003
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
paleośrodowisko
analiza palinofacjalna
bajos
baton
paleoenvironment
Bajocian
Bathonian
Źródło:
Volumina Jurassica; 2003, 1, 1; 7-12
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A preliminary report on dinosaur track assemblages from the Middle Jurassic of the Imilchil area, Morocco
Autorzy:
Gierliński, G. D.
Menducki, P.
Janiszewska, K.
Wicik, I.
Boczarowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059246.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
dinosaur tracks
Bathonian
Bajocian
Central High Atlas
Morocco
Opis:
Dinosaur tracks are reported from three new localities near Imilchil, in the Central High Atlas of Morocco. New dinosaur track assemblages are recognized in Bathonian and Bajocian beds. The Bathonian track assemblage comprises theropod, sauropod and ornithopod footprints. The Bajocian deposits contain a sauropod-thyreophoran track assemblage.
Źródło:
Geological Quarterly; 2009, 53, 4; 477-482
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Docodonts from the British Mesozoic
Autorzy:
Sigogneau-Russell, D
Powiązania:
https://bibliotekanauki.pl/articles/22512.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Mesozoic
Great Britain
docodont
Docodonta
Mammalia
Berriasian
Bathonian
paleontology
Opis:
This paper deals with new docodont teeth from the upper Bathonian of Forest Marble, collected by Prof. K.A. Kermack and his team, and from the basal Cretaceous of the Purbeck Limestone Group, collected by P. Ensom. Study of this materialled to the recognition of three new taxa: Borealestes mussettisp. nov. and Krusatodon kirtlingtonensis gen. et sp. nov. from Forest Marble, Peraiocynodon majorsp. nov. from Purbeck; this makes the Bathonian locality the richest (four species) docodont locality so far known. The possible synonymy of Cyrtlatherium–Simpsonodon (Forest Marble) and of Peraiocynodon–Docodon (Purbeck−Morrison) suggested by several authors is discussed. In conclusion, phyletic relationships between the known docodont genera are proposed, based on lower molars.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Jurassic-Early Cretaceous foraminiferal biozonation of the Amran Group, eastern Sana’a Basin, Yemen
Autorzy:
Al-Wosabi, M.
El-Anbaawy, M.
Al-Thour, K.
Powiązania:
https://bibliotekanauki.pl/articles/94217.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
biostratigraphy
Bathonian
Berriasian
Jabal Salab
Jabal Yam
biostratygrafia
baton
Berrias
Opis:
Two sections of strata assigned to the Amran Group at Jabal Salab and Jabal Yam in the eastern Sana’a governorate were sampled and correlated. These sections are part of a carbonate platform that extends from the city of Marib in the east to Naqil Ibn Ghailan, 20 km east of the city of Sana’a to the west. Palaeontological analysis of samples recovered has resulted in identification of 123 foraminiferal species, which are used to subdivide the sequence of the Amran Group into five biostratigraphic zones, aged between Bathonian (Middle Jurassic) and Berriasian (Early Cretaceous). The proposed biozones are those of Riyadhella rotundata, Kurnubia jurassica, Ammomarginulina sinaica, Alveosepta jaccardiand Pseudocyclammina sulaiyana/Furitilla caspianseis. These biozones were constructed and correlated with the equivalent zones reported from several localities.
Źródło:
Geologos; 2017, 23, 2; 75-87
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comment on "Palaeoenvironmental control on distribution of crinoids in the Bathonian (Middle Jurassic) of England and France" by Aaron W. Hunter and Charlie J. Underwood
Autorzy:
Salamon, M.A.
Gorzelak, P.
Zaton, M.
Powiązania:
https://bibliotekanauki.pl/articles/23363.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
discussion
paleoenvironment control
distribution
crinoid
Bathonian
Middle Jurassic
England
France
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biostratygrafia amonitowa formacji częstochowskich iłów rudonośnych (najwyższy bajos - górny baton) z odsłonięć w Częstochowie
Autorzy:
Matyja, B.
Wierzbowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2061401.pdf
Data publikacji:
2003
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
biostratygrafia
amonity
iły rudonośne
baton
bajos
biostratigraphy
ammonites
ore bearing
Bathonian
Bajocian
Źródło:
Volumina Jurassica; 2003, 1, 1; 3-6
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comment and reply on "Palaeoenvironmental control on distribution of crinoids in the Bathonian (Middle Jurassic) of England and France" by Aaron W. Hunter and Charlie J. Underwood
Autorzy:
Hunter, A.W.
Underwood, Ch.J.
Powiązania:
https://bibliotekanauki.pl/articles/20228.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
paleoenvironment control
discussion
distribution
crinoid
Bathonian
Middle Jurassic
Jurassic
England
France
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoenvironmental reconstruction of Bathonian (Middle Jurassic) ore-bearing clays at Gnaszyn, Kraków-Silesia Homocline, Poland
Autorzy:
Gedl, P.
Kaim, A.
Leonowicz, P.
Boczarowski, A.
Dudek, T.
Kędzierski, M.
Rees, J.
Smoleń, J.
Szczepanik, P.
Sztajner, P.
Witkowska, M.
Ziaja, J.
Powiązania:
https://bibliotekanauki.pl/articles/138742.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
beton
iły rudonośne
jura
paleośrodowisko
Polska
Bathonian
Jurassic
ore-bearing clays
palaeoenvironment
Polska
Opis:
Multidisciplinary studies of the Middle-Upper Bathonian ore-bearing clays at Gnaszyn revealed variable palaeoenvironmental conditions during the deposition of this seemingly monotonous sequence. We interpret the conditions in the bottom environment and the photic zone, and also evaluate the influence of the adjacent land areas, based on sedimentology, geochemistry, sporomorphs and palynofacies composition, benthic (foraminifera, gastropods, bivalves, scaphopods, echinoderms), planktonic (calcareous nannoplankton, dinoflagellate cysts), and nektonic (sharks) fossils. The Gnaszyn succession originated relatively close to the shore, within reach of an intense supply of terrestrial fine clastic and organic particles. The latter are mainly of terrestrial origin and range from 1.5 to 2.5 wt.%. The precise water depth is difficult to estimate but most likely ranges from several tens of metres to a few hundred metres. All fossil groups show minor changes throughout the succession. As the climate seems to have been quite stable during this period we consider sea-level fluctuations to have been the main factor responsible for the changes. The terrestrial input, including freshwater and land-derived clastic and organic particles (sporomorphs and cuticles), increased during periods of sea-level lowstand. As a consequence, stress conditions (lower salinity, higher nutrient availability, lower water transparency) in the photic zone caused blooms of opportunistic planktonic taxa. Furthermore, a faster sedimentation rate led to oxygen depletion and deterioration of the living conditions in the bottom environment due to an increased accumulation of organic matter. As a result, the benthic biota became taxonomically impoverished and commonly dominated by juvenile forms. During periods of high sea level, the source areas were shifted away from the basin, resulting in a decrease in the terrestrial influx, increase in the salinity of surface waters, the appearance of more diverse phytoplankton assemblages, a lower sedimentation rate, and an improvement of living conditions at the bottom.
Źródło:
Acta Geologica Polonica; 2012, 62, 3; 463-484
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biostratygrafia i paleośrodowisko środkowej jury z kamieniołomu Ogrodzieniec
Biostratigraphy and the Mid-Jurassic environment from the Ogrodzieniec quarry
Autorzy:
Barski, M.
Dembicz, K.
Praszkier, T.
Powiązania:
https://bibliotekanauki.pl/articles/2077304.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Jura Krakowsko-Częstochowska
biostratygrafia
Ogrodzieniec
amonity
Bathonian
Callovian
biostratigraphy
dinocysts
ammonites
Kraków-Częstochowa Upland
Opis:
The uppermost Bathonian and Callovian deposits from the newly exposed section of Ogrodzieniec were studied. The biostratigraphical analysis was based on both ammonite and dinocyst zonations. The uppermost Bathonian Orbis and Discus and the Callovian Herveyi, Jason, Coronatum, Athleta, Lamberti zones were distinguished. State of preservation of ammonites and lack of dinocysts made it impossible to distinguish Koenigi and Calloviense zones of the lowest Callovian. The position of the Bathonian/Callovian boundary was found in the clayey part of the section. Earlier the boundary was thought to be erosional. The new data indicate, however, the presence of continuous sedimentation, with low sedimentation rate, during Discus and Herveyi chrons. The presence of Gtenidodinium combazii in Orbis, Discus and Herveyi zones shows normal sea conditions in this time. The change of the dinocyst assemblage the Bathonian/Callovian boundary indicates the sea water cooling.
Źródło:
Volumina Jurassica; 2004, 2, 1; 61-68
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoenvironmental control on distribution of crinoids in the Bathonian [Middle Jurassic] of England and France
Autorzy:
Hunter, A W
Underwood, C.J.
Powiązania:
https://bibliotekanauki.pl/articles/22106.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleoecology
Middle Jurassic
England
paleoenvironment control
paleontology
Echinodermata
Crinoidea
Jurassic
France
distribution
Bathonian
crinoid
Opis:
Bulk sampling of a number of different marine and marginal marine lithofacies in the British Bathonian has allowed us to assess the palaeoenvironmental distribution of crinoids for the first time. Although remains are largely fragmentary, many species have been identified by comparison with articulated specimens from elsewhere, whilst the large and unbiased sample sizes allowed assessment of relative proportions of different taxa. Results indicate that distribution of crinoids well corresponds to particular facies. Ossicles of Chariocrinus and Balanocrinus dominate in deeper−water and lower−energy facies, with the former extending further into shallower−water facies than the latter. Isocrinus dominates in shallower water carbonate facies, accompanied by rarer comatulids, and was also present in the more marine parts of lagoons. Pentacrinitesremains are abundant in very high−energy oolite shoal lithofacies. The presence of millericrinids within one, partly allochthonous lithofacies suggests the presence of an otherwise unknown hard substrate from which they have been transported. These results are compared to crinoid assemblages from other Mesozoic localities, and it is evident that the same morphological adaptations are present within crinoids from similar lithofacies throughout the Jurassic and Early Cretaceous.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 1; 77-98
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calcareous nannofossils from the Bathonian (Middle Jurassic) ore-bearing clays at Gnaszyn as palaeoenvironmental indicator, Kraków-Silesia Homocline, Poland
Autorzy:
Kędzierski, M.
Powiązania:
https://bibliotekanauki.pl/articles/139434.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
baton
jura
monoklina śląsko-krakowska
paleośrodowisko
Bathonian
calcareous nannofossils
Jurassic
Kraków-Silesia Homocline
palaeoenvironment
Polska
Opis:
Qualitative and quantitative studies on calcareous nannofossils have been carried out on the Middle-Upper Bathonian succession of Gnaszyn (Kraków-Silesia Homocline, Częstochowa region). The nannofossil assemblages are moderately or well-preserved and are dominated by Watznaueria britannica; also common are Staurolithites lumina and Zeugrhabdotus erectus. The presence of delicate nannofossil forms together with dissolution-resistant taxa shows that the changes in composition of some of the nannoplankton assemblages reflect original variations. The frequency and diversity changes of the calcareous nannofossil assemblages have been interpreted in relation to fluctuations of sedimentation rate versus changes in trophic conditions within the photic zone. The highest diversity assemblages contain a high percentage of palaeofertility indicators, and are impoverished in the genus Watznaueria. This is interpreted as a reflection of a lower sedimentation rate and more stable, possibly mesotrophic conditions within the photic zone. On the other hand, W. britannica-dominated assemblages with low species diversity may represent more unstable environments with a high influx of terrestrial material related to a high sedimentation rate and a high nutrient influx, i.e. eutrophic conditions in the photic zone.
Źródło:
Acta Geologica Polonica; 2012, 62, 3; 421-437
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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