Temat: morphotype - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A mysterious giant ichthyosaur from the lowermost Jurassic of Wales
Autorzy:: Martin, J.E.
Vincent, P.
Suan, G.
Sharpe, T.
Hodges, P.
Williams, M.
Howells, C.
Fischer, V.
Powiązania:: https://bibliotekanauki.pl/articles/23272.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: ichthyosaur
deposit
morphotype
Jurassic
Wales
Opis:: Ichthyosaurs rapidly diversified and colonised a wide range of ecological niches during the Early and Middle Triassic period, but experienced a major decline in diversity near the end of the Triassic. Timing and causes of this demise and the subsequent rapid radiation of the diverse, but less disparate, parvipelvian ichthyosaurs are still unknown, notably because of inadequate sampling in strata of latest Triassic age. Here, we describe an exceptionally large radius from Lower Jurassic deposits at Penarth near Cardiff, south Wales (UK) the morphology of which places it within the giant Triassic shastasaurids. A tentative total body size estimate, based on a regression analysis of various complete ichthyosaur skeletons, yields a value of 12-15 m. The specimen is substantially younger than any previously reported last known occurrences of shastasaurids and implies a Lazarus range in the lowermost Jurassic for this ichthyosaur morphotype.
Źródło:: Acta Palaeontologica Polonica; 2015, 60, 4
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Two new morphotypes of Pinus eldarica: Discrimination by macromorphological and anatomical traits
Autorzy:: Shayanmehr, F
Jalali, S.G.
Ghanati, F.
Kartoolinejad, D.
Apple, M.E.
Powiązania:: https://bibliotekanauki.pl/articles/41605.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Mondell pine
Pinus eldarica
morphotype
new morphotype
anatomy
statistical analysis
Iran
anatomical differentiation
morphological differentiation
morphometry
needle
Opis:: Pinus eldarica has been introduced to Iran from more than 800 years ago. Some individuals of this pine have altered both in shape and growth rate in northeastern of Iran, and generated two distinct morphotypes which are called Conical-shaped and Ball-shaped pines. This study was conducted to discriminate these morphotypes using macromorphological and anatomical characteristics. Results of macromorphological analysis showed significant differences both with univariate and multivariate analysis and consequently two new morphotypes were clearly separated from Mondell pine individuals. Furthermore, anatomical differences observed in Conical-shaped pine in comparison with two other pines, from some valuable taxonomical point of view traits such as cross-section form of needle, number of stomata per area, number and position of resin ducts etc. Furthermore, the existent difference in traits like cuticle thickness, stomata density, needle perimeter and length, state increasing the adaptation potential to aridity in Conical-shaped pine in comparison with two others. The differences of two new morphotypes demonstrate that they are new variants of Mondell pine and it is need to be used molecular markers and phylogenic studies for specifying the cause of these morphological and anatomical differences.
Źródło:: Dendrobiology; 2009, 61; 27-36
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Morphotype variation of orthophragminids as a palaeoecological indicator: A case study of Bartonian limestones, Pod Capkami Quarry, Tatra Mts, Poland
Autorzy:: Machaniec, E.
Jach, R.
Gradziński, M.
Powiązania:: https://bibliotekanauki.pl/articles/191441.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Larger benthic foraminifera
orthophragminids
morphotype
transgression
palaeoenvironment
Eocene
Tatra Mts.
Western Carpathians
Opis:: Nummulites-Discocyclina bioclastic packstone and Discocyclina rudstone occur in the transgressive sequence of the Middle–Upper Eocene deposits in the Tatra Mts. The succession of the studied facies is a direct response to a rapid environmental change, related to progressive deepening. Facies transition from Nummulites- Discocyclina bioclastic packstone of proximal mid-ramp to Discocylina rudstone of distal mid- and outer-ramp is an exemplary record of a deposition during deepening conditions. Increasing of diversity of the genus Discocyclina, decreasing of diversity of other foraminifera up the section and vertical variation of orthophragminid mor- photypes from the ovate- through saddle- to the disc-shaped tests are related to deepening and shadowing of the depositional environment.
Źródło:: Annales Societatis Geologorum Poloniae; 2011, 81, No 2; 199-205
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: New sauropod trackways from the Middle Jurassic of Portugal
Autorzy:: Santos, V F
Moratalla, J.J.
Royo-Torres, R.
Powiązania:: https://bibliotekanauki.pl/articles/22749.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: new sauropod
sauropod
paleontology
trackway
Middle Jurassic
Jurassic
Portugal
Dinosauria
Sauropoda
morphotype
Opis:: The Galinha tracksite reveals a sequence of Bajocian–Bathonian limestones belonging to the Serra de Aire Formation (West−Central Portugal) and is one of the few sites in the world where Middle Jurassic sauropod dinosaur tracks can be found. This tracksite is characterised by the presence of long, wide gauge sauropod trackways, the Middle Jurassic age of which suggests these dinosaurs were more widely distributed over time than previously thought. Two trackways contain unique pes and manus prints with morphologies that allow a new sauropod ichnotaxon to be described: Polyonyx gomesi igen. et isp. nov. On the basis of different manus/pes prints and trackway features, the proposal is made to subdivide Sauropodomorpha ichno−morphotypes into five groups: Tetrasauropus−like, Otozoum−like, Breviparopus/Parabrontopodus−like; Brontopodus−like, and Polyonyx−like. Polyonyx gomesi igen. et isp. nov. is thought to represent a nonneosauropod eusauropod, with a well developed manus digit I. The posterior orientation of this digit print suggests they were made by a eusauropod dinosaur with a posteriorly rotated pollex. The manus print morphologies observed in two trackways suggest a stage of manus structure intermediate between the primitive non−tubular sauropod manus and the tubular metacarpal arrangement characteristic of more derived sauropods. The low heteropody (manus:pes area ratio 1:2) of the trackway renders it possible they could have been made by eusauropods such as Turiasaurus riodevensis, which has a similar manus:pes area ratio. The Polyonyx igen. nov. trackway was made by non−neosauropod eusauropod, and suggests that wide gauge sauropod trackways were not exclusively made by Titanosauriformes.
Źródło:: Acta Palaeontologica Polonica; 2009, 54, 3; 409-422
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Palaeobiology, ecology, and distribution of stromatoporoid faunas in biostromes of the mid-Ludlow of Gotland, Sweden
Autorzy:: Sandstrom, O
Kershaw, S.
Powiązania:: https://bibliotekanauki.pl/articles/21659.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: paleoecology
deposit
Sweden
paleontology
Silurian
morphotype
stromatoporoid fauna
ecology
distribution
Gotland
Opis:: Six well exposed mid−Ludlow stromatoporoid−dominated reef biostromes in four localities from the Hemse Group in southeastern Gotland, Sweden comprise a stromatoporoid assemblage dominated by four species; Clathrodictyon mohicanum, “Stromatopora” bekkeri, Plectostroma scaniense, and Lophiostroma schmidtii. All biostromes investigated in this area (of approximately 30 km²) are interpreted to belong to a single faunal assemblage forming a dense accumulation of fossils that is probably the best exposed stromatoporoid−rich deposit of the Silurian. The results from this comprehensive study strengthen earlier interpretations of a combination of genetic and environmental control on growth−forms of the stromatoporoids. Growth styles are similar for stromatoporoids in all six biostromes. Differences in biostrome fabric are due to variations in the degree of disturbance by storms. The uniformity of facies and the widespread low−diversity fauna support the view that palaeoenvironmental conditions were similar across the area where these biostromes crop out, and promoted the extraordinary growth of stromatoporoids in this shallow shelf area.
Źródło:: Acta Palaeontologica Polonica; 2008, 53, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Mycorrhizal status of Pinus sylvestris L. nursery stock in Poland as influenced by nitrogen fertilization
Autorzy:: Rudawska, M.
Leski, T.
Gornowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/41277.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: forest ecosystem
Polska
nursery
Pinus sylvestris
nitrogen fertilization
ectomycorrhizal fungi
fungi
morphotype
Opis:: Indigenous mycorrhizal colonisation of one (1/0) and two (2/0) year old Scots pine (Pinus sylvestris L.) seedlings from forest nurseries situated in the north-west part of Poland was investigated. Seedlings were fertilized after a schedule designed to satisfy their requirements which resulted from soil analysis of each nursery. In autumn needle nitrogen concentration and mycorrhizal status were estimated. As a rule seedlings 1/0 obtained high doses of fertilizers, and their needle nitrogen concentration highly exceeded the recommended optimal level above which mycorrhiza formation is greatly restricted. Highly negative correlation was found between the nitrogen status of foliage and mycorrhizal quantitative and qualitative colonisation estimated in the abundance class of 0-5. When internal nitrogen level was low, several ectomycorrhizal morphotypes were found on roots of tested plants. Excessive nitrogen fertilization decreased root ramification pattern and along with increased pH promoted ectendomycorrhizal symbiosis. Two-year-old seedlings (2/0) were characterised by significantly lower nitrogen concentration in the needles which resulted in much higher ectomycorrhizal colonisation. Ectendomycorrhizal symbiosis in the case of 2/0 seedlings was scarce. The results indicate that natural colonisation in nurseries is dependent on the soil management practices, especially nitrogen fertilization. Optimalization of nitrogen fertilization may intensify ectomycorrhizal colonisation of the nursery stock from indigenous fungal species and improve the growth of Scots pine seedlings in bare-root nurseries and plantations.
Źródło:: Dendrobiology; 2001, 46
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Apparatus of the conodont Scolopodus striatus Pander, 1856 and re-evaluation of Panders species of Scolopodus
Autorzy:: Tolmacheva, T Y
Powiązania:: https://bibliotekanauki.pl/articles/20625.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: apparatus
Conodonta
Scolopodus striatus
East Baltic
Russia
Ordovician
conodont
morphotype
paleontology
Estonia
identification
Opis:: The Lower Ordovician conodont Scolopodus striatus Pander, 1856 (= Scolopodus rex Lindström, 1955) has an apparatus composed of five element morphotypes: acontiodiform, subrounded, compressed paltodiform, paltodiform, and scandodiform. The identification of the morphotypes is based on the general asymmetry of elements and shape of their bases. The elements are variable within each morphological group and form a continuous transition series generally reflected in differences in the depth of the basal cavity, height and degree of lateral compression of the base. The new collection from the localities near St. Petersburg, the type area of the first investigations on conodonts by Christian Pander in 1856, was examined and species of Scolopodus named by him are revised. All Pander’s species with the exception of the type species Scolopodus sublaevis are identified as a single species of Scolopodus that was named 99 years later as Scolopodus rex. The S. sublaevis sensu formae was not recognised in collections studied and its validity is questionable. S. striatus is the most easily recognisable among Pander’s species of Scolopodus and is here proposed to be a senior synonym of S. rex.
Źródło:: Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The impact of foliar application of biostimulators on the morphological characteristics of the leaf rosette of winter rape plants
Wpływ dolistnego stosowania biostymulatorów na cechy morfologiczne rozety liściowej roślin rzepaku ozimego
Autorzy:: Sikorska, A.
Gugała, M.
Zarzecka, K.
Domański, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/13925485.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:: morphotype
winter rape
Brassica napus
bioregulator
active substance
foliar application
leaf rosette
morphological characteristics
Źródło:: Agronomy Science; 2022, 77, 2; 5-14
2544-4476
2544-798X
Pojawia się w:: Agronomy Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Theropod teeth from the upper Maastrichtian Hell Creek Formation “Sue” Quarry: New morphotypes and faunal comparisons
Autorzy:: Gates, T.A.
Zanno, L.E.
Makovicky, P.J.
Powiązania:: https://bibliotekanauki.pl/articles/945614.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: paleontology
theropod
tooth
Upper Maastrichtian
Maastrichtian
Hell Creek Formation
morphotype
Dinosauria
morphometry
paleoecology
Cretaceous
North America
Opis:: Isolated teeth from vertebrate microfossil localities often provide unique information on the biodiversity of ancient ecosystems that might otherwise remain unrecognized. Microfossil sampling is a particularly valuable tool for documenting taxa that are poorly represented in macrofossil surveys due to small body size, fragile skeletal structure, or relatively low ecosystem abundance. Because biodiversity patterns in the late Maastrichtian of North American are the primary data for a broad array of studies regarding non-avian dinosaur extinction in the terminal Cretaceous, intensive sampling on multiple scales is critical to understanding the nature of this event. We address theropod biodiversity in the Maastrichtian by examining teeth collected from the Hell Creek Formation locality that yielded FMNH PR 2081 (the Tyrannosaurus rex specimen “Sue”). Eight morphotypes (three previously undocumented) are identified in the sample, representing Tyrannosauridae, Dromaeosauridae, Troodontidae, and Avialae. Noticeably absent are teeth attributed to the morphotypes Richardoestesia and Paronychodon. Morphometric comparison to dromaeosaurid teeth from multiple Hell Creek and Lance formations microsites reveals two unique dromaeosaurid morphotypes bearing finer distal denticles than present on teeth of similar size, and also differences in crown shape in at least one of these. These findings suggest more dromaeosaurid taxa, and a higher Maastrichtian biodiversity, than previously appreciated.
Źródło:: Acta Palaeontologica Polonica; 2015, 60, 1; 131-139
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki