Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Gertruda Biernat (1923–2016)

100%

Halamski A. T., Balinski A.

Acta Palaeontologica Polonica

|

2016

|

tom 61

|

nr 2

2

Jurassic rhynchonellide brachiopods from the Jordan Valley

86%

Feldman H. R., Schemm-Gregory M., Ahmad F., Wilson M. A.

Acta Palaeontologica Polonica

|

2012

|

tom 57

|

nr 1

Jurassic rhynchonellide brachiopods from the Jordan Valley are herein revised and new taxa are added to the faunal list. In this study of Jurassic rhynchonellides from Wadi Zarqa, northwestern Jordan, we recognize the following taxa: Eurysites rotundus, Cymatorhynchia quadriplicata, Daghanirhynchia triangulata, D. angulocostata, Pycnoria magna, Schizoria elongata, and Schizoria cf. intermedia. The following new taxa are described: Daghanirhynchia susanae sp. nov. and Amydroptychus markowitzi sp. nov. The Middle Jurassic Mughanniyya Formation of northwest Jordan is dominated by limestone beds. The sedimentary environment is interpreted as neritic, light, and nutrient−rich resulting in high faunal diversity. The high rhynchonellide endemism of this fauna is yet another confirmation of pronounced Middle Jurassic endemism along the southern Tethyan margin of the Ethiopian Province. Brachiopods of the Jordanian Mughanniyya Formation can be correlated with the fauna of the Aroussiah Formation in Sinai and the Zohar and Matmor formations in Southern Israel.

3

Brachiopods from the Chlamys Ledge Member [Polonez Cove Formation, Oligocene] of King George Island, West Antarctica

86%

Bitner M. A., Gazdzicki A., Blazejowski B.

Polish Polar Research

|

2009

|

tom 30

|

nr 3

277-290

4

Maximizing diductor adhension: An unusual cardinal process in Late Ordovician brachiopods from Estonia

86%

Hints L.

Acta Palaeontologica Polonica

|

2004

|

tom 49

|

nr 4

Cardinal process is a structure on dorsal valve of brachiopods serving for separation or attachment of diductor muscles. A cardinal process with a peculiar folded myophore is described from Late Ordovician “Orthis” kukersiana−group brachiopods assigned to the genus Cyrtonotella (order Orthida). This structure differs from those of other rhynchonelliformean brachiopods and can be considered as a separate type among about twenty varieties of processes described up to now.

5

Les brachiopodes de L'Oolithe de Balin [Pologne] implications stratigraphiques et biogeographiques

86%

Delance J. H., Garcia J. P., Laurin B., Tarkowski R.

Bulletin of the Polish Academy of Sciences. Earth Sciences

|

1993

|

tom 41

|

nr 3

6

First colour-patterned strophomenide brachiopod from the earliest Devonian of Podolia, Ukraine

72%

Balinski A.

Acta Palaeontologica Polonica

|

2010

|

tom 55

|

nr 4

Retained colour pattern on the shells of Plectodonta sp. from the earliest Devonian of Podolia (Ukraine) is the first finding for strophomenide brachiopods and the oldest among articulate brachiopods. The colour pattern in Plectodonta sp. is composed of small, round, brownish spots scattered rather irregularly on the ventral valve only. This may suggest that the described pattern probably performed a protective function through disruptive camouflage against visual systems of potential predators. The occurrence of the colour pattern in Plectodonta sp. exclusively on the ventral valve strongly suggests that these brachiopods lived with the patterned (and convex) ventral valve upwards and the patternless concave dorsal valve facing to the underlying substrate. It thus contradicts a general assumption that concavo−convex brachiopods lived with their convex valves resting on the sediment.

7

Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform

72%

Sokiran E. V.

Acta Palaeontologica Polonica

|

2006

|

tom 51

|

nr 4

759-772

The cyrtospiriferids are among the most important fossils in the Frasnian strata of the East European Platform (EEP). During the Early Frasnian (Palmatolepis falsiovalis Zone) the numerous and morphologically distinct Uchtospiriferinae, accompanied by very scarce Cyrtospiriferinae, are known from South Timan. The mass appearance of cyrtospiriferins on the platform at the beginning of the Middle Frasnian is linked with significant sea−level rise of Devonian Transgression−Regression (T−R) cycle IIc. At that interval these brachiopods attain their highest diversity of the entire Frasnian. The Early Frasnian type species of the genus Uchtospirifer is here revised, and subfamily Uchtospiriferinae re−established. Cyrtospirifer schelonicus, C. rudkinensis, C. mylaensis sp. nov., and C. tenticulum are described from the Middle Frasnian of NW and central regions of EEP and Middle Timan.

8

On the Frasnian brachiopod genus Fitzroyella veevers from Poland

72%

Biernat G.

Acta Palaeontologica Polonica

|

1969

|

tom 14

|

nr 3

Fitzroyella alata n.sp. from the Frasnian of the Holy Cross Mountains (Góry Świętokrzyskie) is described. A cardinal process, previously unknown for the genus, has been observed in the new species and considered as characteristic of the genus Fitzroyella. Special attention is paid to the external morphology of F. alata n.sp. A new term "marginal pseudospines", a feature characteristic of uncinuloids, is proposed.

9

Jurassic animals and algae in the flooring of Our Lady of Sorrows Church in Poznan

72%

Antczak M.

Biological Letters

|

2015

|

tom 52

|

nr 1-2

10

Ordovician rafinesquinine brachiopods from peri-Gondwana

72%

Colmenar J.

Acta Palaeontologica Polonica

|

2016

|

tom 61

|

nr 2

The study of the strophomenide brachiopods of the subfamily Rafinesquininae present in the main Upper Ordovician sections, representing the Mediterranean margin of Gondwana, has revealed an increase in diversity of the group at the region during that time. The studied collections are from the Moroccan Anti-Atlas, the Iberian and the Armorican massifs, the Iberian Chains, Pyrenees, Montagne Noire, Sardinia, and Bohemia. Two genera of the subfamily Rafinesquininae have been recorded. Of them, the cosmopolitan Rafinesquina is the only one previously reported from the region and Kjaerina is found for the first time outside Avalonia, Baltica, and Laurentia. Additionally, two new subgenera have been described, Kjaerina (Villasina) and Rafinesquina (Mesogeina). Furthermore, the new species Rafinesquina (Mesogeina) gabianensis, Rafinesquina (Mesogeina) loredensis, Kjaerina (Kjaerina) gondwanensis, Kjaerina (Villasina) pedronaensis, Kjaerina (Villasina) pyrenaica, and Kjaerina (Villasina) meloui have been described. In addition, other species of these genera previously known from isolated localities in the region, such as Rafinesquina pseudoloricata, Rafinesquina pomoides, and Hedstroemina almadenensis are revised and their geographic range expanded. The adaptive radiation experienced by the rafinesquinines at the Mediterranean region during middle to late Katian, was probably related to changes in the regime of sedimentation and water temperature caused by the global warming Boda event.

11

Brachiopods from the Lower Miocene of King George Island, West Antarctica

72%

Bitner M. A., Crame J. A.

Polish Polar Research

|

2002

|

tom 23

|

nr 1

75-84

12

Lindstroemiidae and Amplexocariniidae (Tetracoralla) from the Middle Devonian of Skaly, Holy Cross Mountains, Poland

72%

Fedorowski J.

Acta Palaeontologica Polonica

|

1965

|

tom 10

|

nr 3

Six species, of this number 2 new ones, and a new subspecies, all of them belonging to the family Lindstroemiidae Počta, as well as one species of the family Amplexocariniidae Różk., from the Lower-Givetian brachiopod shales from Skały, Holy Cross Mountains (Góry Świętokrzyskie), Poland, are described.

13

The brachiopod succession through the Silurian–Devonian boundary beds at Dnistrove, Podolia, Ukraine

72%

Balinski A.

Acta Palaeontologica Polonica

|

2012

|

tom 57

|

nr 4

In the classic section across the Silurian–Devonian boundary at Dnistrove (Podolia, Ukraine) the brachiopod fauna has never been studied in detail. This paper presents results of research on brachiopods from this important locality and time interval. Bed−by−bed collecting has enabled the detailed distribution of brachiopod taxa through the boundary beds to be revealed. Generally, the reference section at Dnistrove yields rather scarce but often well preserved brachiopods. Dayia bohemica and Dnestrina gutta can be regarded as characteristic species for the uppermost Silurian. A relatively high−diversity but low−abundance brachiopod fauna occurs in the lowest 1.8 m of the earliest Devonian. Only three forms have been found to cross the Silurian–Devonian boundary: the strophomenide Plectodonta (Plectodonta) mariae pantherae subsp. nov., the atrypide Gracianella (Sublepida) paulula sp. nov., and the spiriferide Howellella (Howellella) latisinuata. A relatively narrow brachiopod−rich interval at 5.5 m above the Silurian–Devonian boundary yields 16 brachiopod species which probably indicate a setting near the lower limit of the photic zone equivalent to the Benthic Assemblage 3–4 boundary. Two new species and one new subspecies are described: Skenidioides tatyanae, Plectodonta (Plectodonta) mariae pantherae, and Gracianella (Sublepida) paulula.

14

The new stem-group brachiopod Oymurania from the lower Cambrian of Siberia

72%

Kouchinsky A., Holmer L. E., Steiner M., Ushatinskaya G. T.

Acta Palaeontologica Polonica

|

2015

|

tom 60

|

nr 4

A stem-group brachiopod, Oymurania gravestocki Ushatinskaya gen. et sp. nov. is described herein from the middle Atdabanian-lower Botoman Stages (-Cambrian Stage 3) of the Siberian Platform. The fossils were extracted from limestone beds of the Emyaksin, Perekhod, and Pestrotsvet formations as assemblages of disarticulated orthoconic to cyrtoconic porous shells in apatite preservation. The originally organophosphatic shells of Oymurania are externally similar to mitral sclerites (ventral valves) of the stem-group brachiopod Micrina, although no sellate-like sclerites, nor differentiated subapical area with apophyses were recognised in our material. The range of Oymurania shells with sub-central to posteromarginal apex is similar to that of ventral valves ofMickwitzia. Oymurania is also characterised by the system of radial and orthogonal canals open in pairs or triplets in small depressions or indentations of growth lamellae in the outer shell surface. The orthogonal (Micrina-Setatella type) and radial (horizontal setigerous tubes) canals are widespread among the early Cambrian stem-group brachiopods, such as Micrina, Mickwitzia, and Setatella. In addition to these canals, Oymurania exhibits a well-developed acrotretoid columnar microstructure, also known from Setatella. A broad subapical platform in cyrtoconic shells (presumably ventral valves) of Oymurania is interpreted homologous to the deltoid area in mitrals of Micrina and pseudointerarea/interarea in ventral valves of Setatella/paterinid brachiopods. Except with probable cell imprints and openings of orthogonal canals, no morphological differentiation was, however, reflected by the shell interior of Oymurania gravestocki. Being closely related to tannuolinids and mickwitziids, Oymurania complements the picture of diversification of the early Cambrian stem-group brachiopods that occurred in parallel with radiation of paterinids and other crow-group brachiopods on the Siberian Platform and worldwide.

15

X-ray microtomography (XMT) of fossil brachiopod shell interiors for taxonomy

72%

Blazejowski B., Binkowski M., Bitner M. A., Gieszcz P.

Acta Palaeontologica Polonica

|

2011

|

tom 56

|

nr 2

The ability to see and understand the three−dimensional structure of an investigated object plays a key role in studying fossil remains. All living organisms are formed in threedimensions, but unfortunately fossilization processes often reduce overall shape, making it difficult to gather information about real overall appearance, functionality, and inner structure. Here, using a specimen of the brachiopod Terebratula terebratula we demonstrate a non−destructive technique for exploring the 3−D internal structure of fossil remains. The use of tomography allows the construction of a set of transverse serial sections in the manner used by brachiopod researchers for decades.

16

Crural bases position as a structural criterion for supraspecific diagnosis of Early Jurassic zeilleriid brachiopods

72%

Baeza-Carratala J. F., Garcia Joral F.

Acta Palaeontologica Polonica

|

2014

|

tom 59

|

nr 3

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.

17

Silicified Anisian [Middle Triassic] spiriferinid brachiopods from Guizhou, South China

72%

Sun Z., Hao W., Sun Y., Jiang D.

Acta Palaeontologica Polonica

|

2009

|

tom 54

|

nr 1

61-68

A newly discovered silicified brachiopod interval from the Upper Member of the Guanling Formation (Late Anisian, Middle Triassic) in Guizhou Province (South China) is described for the first time. The most remarkable feature of this brachiopod assemblage, besides the very good preservation, is the very low taxonomic evenness and diversity. This impoverished, low diversity/high density assemblage is represented by more than 700 recovered specimens belonging to three species within two spiriferinid genera (Pseudospiriferina multicostata, P. pinguis, and Punctospirella fragilis). It is characterized by the overwhelming abundance of an endemic spiriferinid species, P. multicostata, which contributes to more than 90% of the community. Silicified valves of P. multicostata and Punctospirella fragilis allow detailed descriptions of the internal morphology based on direct observation. Brachiopod paleoecology, assessed by considering host−rock lithology, shell disarticulation, and shell size suggests that this endemic brachiopod fauna represents a favourable niche for development of dense brachiopod−dominated communities, i.e., high energy, hard substrate, nutrient rich environment.

18

Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK

72%

Carniti A. P., Della Porta G., Banks V. J., Stephenson M. H., Angiolini L.

Acta Palaeontologica Polonica

|

2022

|

tom 67

|

nr 4

19

New bizarre micro-spiriferid brachiopod from the Early Carboniferous of China

72%

Sun Y., Balinski A., Ma X., Zhang Y.

Acta Palaeontologica Polonica

|

2004

|

tom 49

|

nr 2

The verneuiliid brachiopod Changshunella yangi gen. et sp. nov. is described from the Early Carboniferous Muhua Formation of Guizhou, China. This rather unusual form is characterized by having very small shell dimensions (2.6–4 mm in length), a very high flat procline ventral interarea, and by having three prominent plications on both valves that are arranged in opposed folding; the last feature is characteristic for the family Verneuiliidae. We suggest that the family has been derived from an offshoot of the stock that produced the superfamilies Spiriferoidea, Paeckelmanelloidea, and Brachythyridoidea by developing opposed folding and loss of dental plates or dental adminicula as exemplified by Verneuilia and Changshunella gen. nov.

20

A new giant discinoid brachiopod from the Lower Devonian of Algeria

72%

Mergl M., Massa D.

Acta Palaeontologica Polonica

|

2005

|

tom 50

|

nr 2

A new discinoid brachiopod Gigadiscina gen. nov., with the type species G. lessardi sp. nov., is described from the Lower Devonian (Siegenian) of the Tamesna Basin (South Ahaggar Massif, South Algeria). It is characterised by large size and convexo−planar profile of the shell, with a subcentral pedicle foramen. Micro−ornament is typically discinoid, with small circular pits in radial rows on the post−larval shell surface. Related species of Malvinokaffric Realm origin from South Africa, Falkland Islands, Antarctica, South America, and Libya are reviewed, including the poorly known Discina anomala from the Lower Devonian of Germany. The giant size and convexo−planar shells of these discinoids, remarkably similar to recent limpets, are interpreted as adaptation to a habitat in proximity of sandy and gravel beaches in a high−energy environment. Most likely, the conical dorsal valve suppressed drag in turbulent waters, whereas fixation of shell by large, sucker−like pedicle eliminated peeling from the substrate.

Ograniczanie wyników

Gertruda Biernat (1923–2016)

Jurassic rhynchonellide brachiopods from the Jordan Valley

Brachiopods from the Chlamys Ledge Member [Polonez Cove Formation, Oligocene] of King George Island, West Antarctica

Maximizing diductor adhension: An unusual cardinal process in Late Ordovician brachiopods from Estonia

Les brachiopodes de L'Oolithe de Balin [Pologne] implications stratigraphiques et biogeographiques

First colour-patterned strophomenide brachiopod from the earliest Devonian of Podolia, Ukraine

Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform

On the Frasnian brachiopod genus Fitzroyella veevers from Poland

Jurassic animals and algae in the flooring of Our Lady of Sorrows Church in Poznan

Ordovician rafinesquinine brachiopods from peri-Gondwana

Brachiopods from the Lower Miocene of King George Island, West Antarctica

Lindstroemiidae and Amplexocariniidae (Tetracoralla) from the Middle Devonian of Skaly, Holy Cross Mountains, Poland

The brachiopod succession through the Silurian–Devonian boundary beds at Dnistrove, Podolia, Ukraine

The new stem-group brachiopod Oymurania from the lower Cambrian of Siberia

X-ray microtomography (XMT) of fossil brachiopod shell interiors for taxonomy

Crural bases position as a structural criterion for supraspecific diagnosis of Early Jurassic zeilleriid brachiopods

Silicified Anisian [Middle Triassic] spiriferinid brachiopods from Guizhou, South China

Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK

New bizarre micro-spiriferid brachiopod from the Early Carboniferous of China

A new giant discinoid brachiopod from the Lower Devonian of Algeria