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Tytuł:
New Early Jurassic sawflies from Luxembourg: the oldest record of Tenthredinoidea [Hymenoptera: Symphyta]
Autorzy:
Nel, A
Pertulevicius, J.F.
Henrotay, M.
Powiązania:
https://bibliotekanauki.pl/articles/22224.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Pseudoxyelocerus bascharagensis
oldest record
sawfly
Xyelotomidae
Tenthredinoidea
Early Jurassic
Luxembourg
Hymenoptera
Jurassic
paleontology
Opis:
Pseudoxyelocerus bascharagensis gen. et sp. nov., the oldest representative of the Tenthredinoidea and Xyelotomidae, based of a single forewing, and an enigmatic “Symphyta” family incertae sedis, based on a hindwing, are described from the Toarcian of Luxembourg. The relationships of the genera currently included in Xyelotomidae are briefly discussed. The genera Undatoma, Liaotoma, Leridatoma, and Davidsmithia have the unique apomorphy in the wing venation of the Tenthredinoidea minus Xyelotomidae. The Xyelotomidae is probably a paraphyletic family. Only a phylogenetic analysis will help to solve these problems. There is no evidence supporting the previous assignments of the fossil genera Vitimilarva and Kuengilarva to the family Xyelotomidae.
Źródło:
Acta Palaeontologica Polonica; 2004, 49, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New Early Jurassic gastropods from west-central Patagonia, Argentina
Autorzy:
Ferrari, S.M.
Powiązania:
https://bibliotekanauki.pl/articles/23237.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
new gastropod
Early Jurassic
gastropod
Patagonia
Argentina
Gastropoda
Mulanguineu Formation
Pliensbachian
Toarcian
Jurassic
Chubut
Opis:
A new gastropod fauna is reported from Chubut province of west−central Patagonia. Members of Trochoidea, Pseudo− melanoidea, Campaniloidea, and Nerinoidea are recorded from the Early Jurassic (Late Pliensbachian–Early Toarcian) of Mulanguińeu Formation. The gastropod fauna consists of two new species: the pseudomelaniid Pseudomelania feruglioisp. nov. and the protorculid Anulifera chubutensissp. nov. Other members of the association are Pseudomelania sp.; the ampulloispirids Globularia cf. catanlilensis, Globularia sp., and Naricopsina? sp.; the nerineids Nerinea? sp. 1 and Nerinea? sp. 2; the trochids Lithotrochus humblodtii, Lithotrochus cf.rothi, and two indeterminable trochids species. An analysis of diversity was made considering all gastropod fauna recovered so far from five fossiliferous localities sampled in west−central Patagonia. The preliminary results of this study suggests that the Jurassic marine sequences of west central Chubut province are dominated by gastropods of Eucyclidae, Pseudomelaniidae, Procerithiidae, and Ampullinidae groups. However, the rarefaction curves of particular marine gastropod faunas in the Jurassic of Patagonia are still far from saturation requiring further collecting effort.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France
Autorzy:
Vincent, P.
Bardet, N.
Mattioli, E.
Powiązania:
https://bibliotekanauki.pl/articles/20236.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
new pliosaurid
pliosaurid
Reptilia
Plesiosauria
Pliosauroidea
Cryonectes
Jurassic
Pliensbachian
Early Jurassic
Normandy
France
paleontology
Opis:
Complete plesiosaur skeletons are relatively abundant in the Lower Jurassic of England and Germany, but are exceptional in France. A new specimen from Normandy (northern France), including incomplete skull, palate and mandible with several associated vertebrae, is here described and its pliosauroid affinities are discussed. Comparison of this new specimen with other plesiosaurians indicates that it belongs to a new genus and species: Cryonectes neustriacus. This new plesiosaurian taxon represents one of the most complete pliosaurids reported from the Pliensbachian, a stage that has yielded very few diagnostic plesiosaurian remains. Our preliminary phylogenetic analysis places Cryonectes in a basal position among Pliosauridae, and suggests that the radiation of this clade occurred several millions of years earlier than previously thought. This new taxon contributes to our understanding of Early Jurassic plesiosaur diversity.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cosmopolitan Early Jurassic marine gastropods from west-central Patagonia, Argentina
Autorzy:
Ferrari, S M
Powiązania:
https://bibliotekanauki.pl/articles/21564.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Early Jurassic
Jurassic
marine gastropod
gastropod
Patagonia
Argentina
Gastropoda
Osta Arena Formation
Toarcian
Chubut
Opis:
A new, relatively diverse gastropod fauna is reported from the Chubut province of west−central Patagonia. The gastropod association at the “El Córdoba” fossiliferous locality (Lower Toarcian of Osta Arena Formation) consists of three new species: the eucyclid Amberleya? espinosa sp. nov. and two procerithiids Cryptaulax damboreneae sp. nov. and Cryptaulax nulloi sp. nov. Other members of the association are the ataphrid Striatoconulus sp., discohelicid Colpomphalus? sp., and an undetermined zygopleurid. Knowledge on Early Jurassic gastropods from South America and other southern continents is reviewed to show that the taxonomic composition of the El Cordoba association strongly resembles other gastropod associations of this age (even those from Europe), suggesting a wide distribution of cosmopolitan genera.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 3; 449-461
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crural bases position as a structural criterion for supraspecific diagnosis of Early Jurassic zeilleriid brachiopods
Autorzy:
Baeza-Carratala, J.F.
Garcia Joral, F.
Powiązania:
https://bibliotekanauki.pl/articles/945875.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Brachiopoda
Zeilleriidae
systematics
structural criterion
supraspecific diagnosis
Jurassic
Early Jurassic
zeilleriid brachiopod
brachiopod
Opis:
Analysis of the internal structure carried out on several representative genera of the brachiopod family Zeilleriidae from the Lower Jurassic of the Betic Ranges (SE Spain), complemented with specimens from nearby domains such as the Iberian Range and Lusitanian Basin, has enabled to propose a model for discrimination of genera based on the relative position of the crural bases with respect to the hinge plates. This particular feature has been analysed in the genera Zeilleria, Bakonyithyris, Securina, Neozeilleria, Cincta, Aulacothyris, and Plesiothyris, revealing three different basic patterns of crural bases arrangement: a Zeilleria-type, with crural bases distinctly arising from the ventral side of the hinge plates; a Securina-type, with crural bases originating transversally to the hinge plates and dorsally prominent; and a Bakonyithyris-type, intermediate between both previous patterns.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 3; 651-661
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tracks of a large thyreophoran dinosaur from the Early Jurassic of Poland
Autorzy:
Gierlinski, G
Powiązania:
https://bibliotekanauki.pl/articles/20412.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Scelidosaurus harrisonii
Polska
track
Early Jurassic
pes
Moyenisauropus karaszevskii
Holy Cross Mountains
dinosaur
Jurassic
paleontology
Źródło:
Acta Palaeontologica Polonica; 1999, 44, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anatomy of a basal sauropodomorph dinosaur from the Early Jurassic Hanson Formation of Antarctica
Autorzy:
Smith, N.D.
Pol, D.
Powiązania:
https://bibliotekanauki.pl/articles/22152.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Antarctic
Dinosauria
Early Jurassic
Hanson Formation
Jurassic
Prosauropoda
Sauropodomorpha
dinosaur
paleobiogeography
paleontology
phylogenesis
sauropodomorph dinosaur
anatomy
Opis:
The anatomy of a basal sauropodomorph (Dinosauria: Saurischia) from the Early Jurassic Hanson Formation of Antarctica is described in detail. The material includes a distal left femur and an articulated right pes, including the astragalus, distal tarsals, and metatarsals I–IV. The material is referable to Sauropodomorpha and represents a noneusauropod, sauropodomorph more derived than the most basal members of Sauropodomorpha (e.g., Saturnalia, Thecodontosaurus, Efraasia, and Plateosaurus) based on a combination of plesiomorphic and derived character states. Several autapomorphies present in both the femur and metatarsus suggest that this material represents a distinct sauropodomorph taxon, herein named Glacialisaurus hammeri gen. et sp. nov. Some of the derived characters present in the Antarctic taxon suggest affinities with Coloradisaurus and Lufengosaurus (e.g., proximolateral flange on plantar surface of metatarsal II, well−developed facet on metatarsal II for articulation with medial distal tarsal, subtrapezoidal proximal surface of metatarsal III). Preliminary phylogenetic analyses suggest a close relationship between the new Antarctic taxon and Lufengosaurus from the Early Jurassic Lufeng Formation of China. However, the lack of robust support for the taxon’s phylogenetic position, and current debate in basal sauropodomorph phylogenetics limits phylogenetic and biogeographic inferences drawn from this analysis. The new taxon is important for establishing the Antarctic continent as part of the geographic distribution of sauropodomorph dinosaurs in the Early Jurassic, and recently recovered material from the Hanson Formation that may represent a true sauropod, lends support to the notion that the earliest sauropods coexisted with their basal sauropodomorph relatives for an extended period of time.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molar morphology and occlusion of the Early Jurassic mammalia form Erythrotherium parringtoni
Autorzy:
Jager, K.R.K.
Gill, P.G.
Martin, T.
Corfe, I.J.
Powiązania:
https://bibliotekanauki.pl/articles/31341364.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Mammalia
Morganucodonta
dental morphology
occlusion
dental function
Mesozoic
Lesotho
molar
morphology
Early Jurassic
Jurassic
Erythrotherium parringtoni
Africa
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 4; 975-982
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Early Jurassic insect fauna in the Holy Cross Mountains
Autorzy:
Wegierek, P
Zherikhin, V V
Powiązania:
https://bibliotekanauki.pl/articles/21327.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
plant fossil
Mesozoic
fauna
locality
Polska
fossil insect
Early Jurassic
Holy Cross Mountains
Kielce town
insect
Jurassic
paleontology
Źródło:
Acta Palaeontologica Polonica; 1997, 42, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The cranial anatomy of the Early Jurassic turtle Kayentachelys aprix
Autorzy:
Sterli, J.
Joyce, W.G.
Powiązania:
https://bibliotekanauki.pl/articles/22757.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
cranial anatomy
Cryptodira
Testudines
Jurassic
Early Jurassic
turtle
Kayentachelys aprix
evolution
fossil record
Kayenta Formation
Arizona
paleontology
systematics
Opis:
The fossil turtle Kayentachelys aprix is known from Early Jurassic sediments of the Kayenta Formation, Arizona, USA. The detailed description of this taxon’s cranium offered in this paper demonstrates that this turtle presents a mixture of primitive and derived character states. Among others, the presence of an interpterygoid vacuity, a basipterygoid process, a prootic that is exposed in ventral view, and a foramen posterius canalis carotici interni that is formed entirely by the basisphenoid are generally considered primitive for turtles. On the other hand, the presence of an undivided apertura narium, a well developed cavum tympani, an incipient cavum postoticum, and an unpaired vomer are considered to be derived. Kayentachelys aprix has previously been hypothesized to be the oldest stem cryptodiran turtle because of the presence of a flat, vertical plate on the processus pterygoideus externus, and the presence of a processus trochlearis oticum. However, the presence of these characters cannot be confirmed in the available specimens. Other putative stemcryptodiran characters, such as the prefrontal−vomer contact and the presence of an epipterygoid, are herein corroborated as being symplesiomorphies, because they generally appear to be present in basal turtles.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low durophagous predation on Toarcian (Early Jurassic) ammonoids in the northwestern Panthalassa shelf basin
Autorzy:
Takeda, Y.
Tanabe, K.
Powiązania:
https://bibliotekanauki.pl/articles/23068.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Toarcian
Early Jurassic
Jurassic
ammonoid
Panthalassa zob.Panthalassic Ocean
Panthalassic Ocean
shelf basin
Ammonoidea
predation
ventral bite mark
paleontology
Opis:
Predatory shell breakage is known to occur occasionally on the ventrolateral portion of the body chamber in Mesozoic ammonoids. Here we report, for the first time, quantitative data of shell breakage in large ammonoid samples that were recovered from the lower Toarcian (Lower Jurassic) strata in the Toyora area, western Japan. The strata yielding the ammonoid samples consisted mostly of well-laminated, bituminous black shale that was deposited in an oxygen-depleted shelf basin of the northwestern Panthalassa, under the influence of the early Toarcian oceanic anoxic event. Among a total of 1305 specimens from 18 localities, apparent shell breakage was recognised in 35 specimens belonging to 7 genera, resulting in only a 2.7% frequency of occurrence relative to the total number of specimens. The breakage occurs mostly on the ventrolateral side of the body chamber with a complete shell aperture. This fact, as well as the low energy bottom condition suggested for the ammonoid-bearing shale, indicate that the shell breaks observed in the examined ammonoids were not produced by non-biological, post-mortem biostratinomical processes but were lethal injuries inflicted by nek-tonic predators such as reptiles, jawed fishes, coleoids, nautiloids, and carnivorous ammonoids with calcified rostral tips in their upper and lower jaws. Similar predatory shell breaks on the ventrolateral side of the body chamber have been found in contemporaneous ammonoid assemblages of the Tethys Realm, with a much higher frequency of occurrence than in the examined samples from the northwestern Panthalassa, suggesting a weaker durophagous predation pressure on ammonoids in the latter bioprovince.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Earliest Jurassic patellogastropod, vetigastropod, and neritimorph gastropods from Luxembourg with considerations on the Triassic–Jurassic faunal turnover
Autorzy:
Monari, S.
Valentini, M.
Conti, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/20922.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Early Jurassic
Jurassic
patellogastropod
vetigastropod
neritimorph gastropod
gastropod
Luxembourg
Triassic
fauna
paleontology
Gastropoda
paleobiogeography
Hettangian
Luxembourg Sandstone Formation
Paris Basin
Opis:
The Hettangian to earliest Sinemurian Vetigastropoda, Patellogastropoda, and Neritimorpha housed in the National Museum of Natural History of Luxembourg are studied. Most of the species comes from the Luxembourg Sandstone Formation. This deposit formed along the southern margin of the London−Brabant−Ardennes Landmass, in a region that during the earliest Jurassic constituted a seaway connecting the Paris Basin with the epicontinental seas of the Netherlands and northern Germany. The systematic analysis revealed high diversity of the studied fauna; we identified twenty−two species, eleven genera, nine families, and six superfamilies. A new genus, Meiersia gen. nov., and three new species, Anodomaria schroederi sp. nov., Meiersia disarmata sp. nov., and Spirocirrus weisi sp. nov. are described. The fauna is dominated by pleurotomarioideans representing the genera Ptychomphalus, Pleurotomaria, and Trochotoma, and by the patellogastropod genus Scurriopsis both in number of species and specimens. The neritimorph genus Neridomus is also well represented. Among the accessory taxa, Anodomaria and Spirocirrusfirst appeared in the Late Hettangian of the Luxembourg area. Most of these genera show a species radiation in the Early Jurassic and are distributed over the western European epicontinental shelf, probably favoured by an east to west marine transgression which influenced wide areas from the basins of the northern Germany to the Paris Basin through the Luxembourg seaway. The evolutionary and palaeobiogeographical data demonstrate that this radiation was already considerably advanced in the Late Hettangian. This suggests that the recovery of the gastropod diversity after the end−Triassic crisis was relatively fast in western Europe.
Źródło:
Acta Palaeontologica Polonica; 2011, 56, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new Pliensbachian [Early Jurassic] neoselachian shark fauna from Southern Sweden
Autorzy:
Rees, J
Powiązania:
https://bibliotekanauki.pl/articles/21480.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Neoselachii
fauna
marine deposit
shark
neoselachian shark
Scania
Sweden
Rya Formation
tooth
Early Jurassic
Pliensbachian
paleontology
Opis:
Hettangian to Pliensbachian neoselachian tooth assemblages from marine deposits in northwest Europe are dominated by palaeospinacids. In the Toarcian, elasmobranch faunas tend to be more diverse and several other neoselachian groups have their first occurrence. A small, but surprisingly diverse, neoselachian tooth assemblage, comprising seven taxa, has been extracted from Pliensbachian sediments within the Rya Formation in southern Sweden. The fauna includes five synechodontiform species; Synechodus occultidens, S. enniskilleni, 'Synechodus' sp., Paraorthacodus sp., and Sphenodus sp. The remaining two species include Hexanchidae indet. and Agaleus dorsetensis. The exclusively Early Jurassic A. dorsetensis is separated from all other neoselachians on the basis of tooth morphology and is here included in the new, monotypic family Agaleidae nov. The assemblage from the Rya Formation is the first selachian fauna to be recorded from the Jurassic of Sweden and it has a composition quite different from contemporary faunas found in other areas of Europe. The neoselachian part of the fauna is more diverse while hybodont sharks are represented solely by a single species.
W pracy omówiono zespoły zębów wczesnojurajskich nowożarłaczy (Neoselachii) z Europy Północnej. W zespołach z osadów morskich najwcześniejszych pięter wczesnej jury (hetang-pliensbach) przeważają paleospinacydy, jednak różnorodność gatunkowa jest niska. W toarku, fauny spodoustych różnicują się bardziej, w tym po raz pierwszy pojawiają się rodziny rekinów rogatych (różnozębnych; Heterodontidae), Brachaeluridae i rochowatych (Rhinobatidae). Z osadów pliensbachu formacji Rya w południowej Szwecji pochodzi mały, lecz zaskakująco zróżnicowany zespół zebów nowożarłaczy, liczący siedem gatunków. Fauna ta obejmuje pięć gatunków synechodontokształtnych: Synechodus occultidens, S. enniskilleni, 'Synechodus' sp., Paraorthacodus sp. and Sphenodus sp. Pozostałe dwie formy to Agaleus dorsetensis i bliżej nieoznaczony przedstawiciel sześcioszparowatych (Hexanchidae). Wyłącznie wczesnojurajski A. dorsetensis różni się od wszystkich pozostałych nowożałaczy morfologią zębów, toteż został zaliczony do nowej, jednogatunkowej rodziny Agaleidae. Do cech odróżniających Agaleidae od innych nowożarłaczy należą: poziomy grzbiecik u podstawy korony zęba oraz wysoki korzeń z centralnym zgrubieniem od strony wargowej. Zespół z formacji Rya jest pierwszą fauną rekinów z jury Szwecji i różni się składem gatunkowym od ówczesnych zespołów z innych regionów Europy. Nowożarłacze z formacji Rya są bardziej różnorodne gatunkowo, zaś hybodonty reprezentuje pojedynczy gatunek Hybodus reticulatus. Synemurskie fauny z Anglii i Belgii zawierają natomiast kilka gatunków hybodontów zaliczanych do dwóch rodzajów: Hybodus i Acrodus, a tylko trzy gatunki nowożarłaczy. Acrodus wymarł zapewne przed pliensbachem i nie występuje w żadnej ze znanych faun tego wieku. Zespół synechodontokształtnych z formacji Rya jest najbogatszy z dotąd opisanych. Synechodontokształtne mogły przeżyć rozkwit we wczesnej jurze, gdyż prawie nie było wówczas innych nowożarłaczy.
Źródło:
Acta Palaeontologica Polonica; 2000, 45, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bone microstructure and growth patterns of early mammals
Autorzy:
Chinsamy, A
Hurum, J.H.
Powiązania:
https://bibliotekanauki.pl/articles/23349.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
fossil record
Eutheria
mammal
Cretaceous
Mammalia
growth rate
Early Jurassic
Morganucodonta
Multituberculata
paleontology
bone microstructure
Cynodontia
Opis:
We present results of the first studies of the bone microstructure of early mammals, based on the Early Jurassic Morganucodon, the Late Cretaceous multituberculates, Kryptobaatar and Nemegtbaatar, and the Late Cretaceous eutherians Zalambdalestes and Barunlestes. Our results show that the two eutherian taxa grew relatively slowly with periodic pauses in growth indicated by the presence of rest lines, while the multituberculates and Morganucodon had a faster rate of bone formation that suggests an overall rapid growth rate that slowed down later in ontogeny. Comparisons of the early mammalian bone microstructure with that of non−mammalian cynodonts, extant monotremes, and placentals are also made, and significant differences in the rate of osteogenesis in the various groups are documented. Our findings suggest differences in the growth rate between the multituberculates and the Mesozoic eutherians, and moreover, both groups appear to have slower growth rates as compared to modern monotremes and placentals. Our results further suggest that the determinate growth strategy typical of extant mammals evolved early in the evolution of the non−mammalian therapsids. We speculate that the sustained, uninterrupted bone formation among the multituberculates may have been an adaptive attribute prior to the K−T event, but that the flexible growth strategy of the early eutherians was more advantageous thereafter.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gigantic footprint of a theropod dinosaur in the Early Jurassic of Poland
Autorzy:
Gierlinski, G
Niedzwiedzki, G
Pienkowski, G
Powiązania:
https://bibliotekanauki.pl/articles/22354.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Polska
gigantic footprint
Early Jurassic
theropod
Late Jurassic
dinosaur
Jurassic
gigantic theropod
geographic distribution
stratigraphic distribution
theropod dinosaur
deposit
Holy Cross Mountains
paleontology
Źródło:
Acta Palaeontologica Polonica; 2001, 46, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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