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1
Content available Synaptichnium tracks from the middle Muschelkalk (Middle Triassic, Anisian) Bernburg site (Saxony-Anhalt, Germany)
Marchetti Lorenzo, Klein Hendrik, Falk Daniel, Wings Oliver
Annales Societatis Geologorum Poloniae
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2020
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Vol. 90, No. 3
321--330
EN
The Solvay Quarry of Bernburg is one of the most important ichnosites from the Muschelkalk of the Germanic Basin. Extensive surfaces with long chirotheriid trackways have been discovered and assigned to Chirotherium and Isochirotherium. Some undescribed step cycles from this site are analysed here and assigned to Synaptichnium isp. These footprints belong to a “thick-digit” Synaptichnium morphotype recognised at several Middle Triassic sites of Pangaea that seems to differ from the currently valid Synaptichnium ichnospecies. This is the first occurrence of Synaptichnium from this site and the only including step cycles one from the track-bearing Muschelkalk successions of N Germany and the Netherlands. A comparison between the tetrapod ichnoassociations of marginal marine and alluvial units of the Muschelkalk of the Germanic Basin reveals a similar ichnofaunal composition but different relative proportions between ichnotaxa. Rhynchosauroides and Procolophonichnium occur more often in tidal units, whereas the alluvial units show a higher abundance of chirotheriid tracks and an overall greater track diversity.
2
Content available Sphenopsid and fern remains from the Upper Triassic of Krasiejów (SW Poland)
Pacyna Grzegorz
Annales Societatis Geologorum Poloniae
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2019
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Vol. 89, No. 3
307--316
EN
Hydrophilic elements, such as sphenopsids and fems, are rare in the flora of the Krasiejów site and they are poorly preserved. One sphenopsid species, Neocalamites merianii, was recognised. It is preserved as impressions, flattened casts, moulds and isolated leaves. So far, only one small fern specimen, determined as Sphenopteris sp., has been found. These elements probably were transported to the site of deposition and did not grow where they were buried.
3
Content available Magnetic polarity of Upper Triassic sediments of the Germanic Basin in Poland
Nawrocki J., Jewuła K., Stachowska A., Szulc J.
Annales Societatis Geologorum Poloniae
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2015
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Vol. 85, No. 4
663--674
EN
Palaeomagnetic results are presented for 205 samples of cores from the Książ Wielkopolski IG-2, Woźniki K1 and Patoka 1 wells, drilled in the Polish part of Germanic Basin. The magnetic polarity stratigraphy is based on the inclination of the characteristic remanent magnetization, isolated in 60% of the total samples and found to be in general agreement with the expected Late Triassic inclination at the sampling sites. A total of 22 magnetozones from the integration of the three records correspond to about 25% of the published polarity zones for the Upper Triassic sediments that were combined in the worldwide composite polarity-time scale. The magne- tic polarity pattern, defined for the Schilfsanstein, fits very well with the one defined in the Tethys area for the upper part of the Julian sub-stage. According to the magnetostratigraphic data, the uppermost part of the Upper Gypsum Beds (equivalent to the Ozimek Member of the redefined Grabowa Formation) and the lowermost part of the Patoka Member, containing the Krasiejów bone-breccia horizon, can be correlated with the latest Tuvalian (~228.5 Ma) or with the middle part of Lacian (~225 Ma). However, if the “Long-Tuvalian” option for the Late Triassic Time Scale is taken into consideration, the parts of these substages mentioned above should be correlated with ~221.5 Ma and ~218.5 Ma, respectively.
4
Content available Holocrinid columnals from the Upper Muschelkalk of the Holy Cross Mts. (eastern part of the Germanic Basin)
Salamon M. A.
Geological Quarterly
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2005
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Vol. 49, No. 1
105--107
EN
A few isolated columnals of a holocrinid have been found in Ladinian Upper Muschelkalk deposits (probably Ceratites Beds) in the OEwioelina valley (northern margin of the Holy Cross Mts.). Although they are poorly preserved and not diagnostic at species level, this is the first occurrence of the genus Holocrinus in the Upper Muschelkalk of the eastern part of the Germanic Basin. This crinoid indicates faunal immigration from the Tethys through reactivated East-Carpathian Gate.
5
Content available An explanation for low endemism of Triassic crinoids fromthe epicontinental Germanic Basin, Poland
Salamon M. A., Niedźwiedzki R.
Geological Quarterly
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2005
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Vol. 49, No. 3
331--338
EN
A summary of known crinoid taxa in the Polish part of the Triassic Germanic Basin, including their presence elsewhere, is documented. At present, 13 taxa and 3 ecophenotypes of crinoids have been recorded from that area, only one of them being endemic. In the Lower Muschelkalk and lower part of theMiddleMuschelkalk, taxa widespread both in the Tethys and Germanic Basin, or Tethyan taxa, dominate. In the Upper Muschelkalk crinoids are very rare in Poland, being represented by Encrinus liliiformis and Holocrinus sp. Many of the species occurring in the central part of the Germanic Basin in the Upper Muschelkalk have not been recorded in the eastern part of the basin. The degree of endemism of the crinoid fauna in theMuschelkalk is markedly lower than the degree of endemism of the rest of the benthonic macrofauna. This probably resulted from huge number of crinoids forming "crinoid gardens" that produced large number of larvae, increasing the chances of successful geographical expansion of crinoids.
6
Content available Encrinus cf. liliiformis Lamarck, 1801, the youngest crinoid from the Polish Muschelkalk (Middle Triassic)
Salamon M.A.
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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2005
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T. 31, z. 2
243-252
EN
The paper reports first undoubted occurrence of crinoid species Encrinus cf. liliiformis from the Upper Muschelkalk (Middle Triassic) of Poland. Contrary to previous records, it has been found the species occurs only in Upper Muschelkalk sediments. On the basis of known evidence, it seems that E. cf. liliiformis migrated east to west through the reactivated East-Carpathian Gate
PL
Po raz pierwszy udokumentowano pewną obecność liliowca Encrinus cf. liliiformis w osadach górnego wapienia muszlowego (środkowy trias) Polski. W przeciwieństwie do poprzednich doniesień wykazano, że gatunek ten występuje jedynie w górnym wapieniu muszlowym. Szereg przesłanek świadczy o migracji E. cf. liliiformis ze wschodu na zachód przez reaktywowaną bramę wschodnio-karpacką
7
Content available remote Masowe nagromadzenie artykulowanych szkieletów wężowideł w osadach środkowego triasu Górnego Śląska i ich implikacje tafonomiczne
Salamon M. A., Zatoń M.
Przegląd Geologiczny
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2004
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Vol. 52, nr 10
997--1001
EN
Due to their poor fossilization potential, fully articulated ophiuroids are extremely rare in the fossil record. Therefore much of their evolutionary history is based on the study of isolated skeletal elements. In this paper the mass-occurrence and taphonomy of articulated ophiuroids from the Middle Triassic of Wojkowice, Upper Silesia [S. Poland] is described. The assemblages consist of monospecific and multiindividual beds with small ophiuroids Aspiduriella similis [Eck]. Among 134 analysed specimens, 86 % are partially disarticulated, without distal and middle parts of their arms. Nearly all specimens are preserved with their oral side turned up. The high percentage of articulated specimens embedded within thin, fine-grained layer underlied by biomicrites with a few crinoid ossicles, indicates rapid burial in the deeper part of the shelf, below the crinoids habitat, caused by high-energy [storm] event in a shallow part of the basin. Apart from palaeobiological merit, such obrution deposits, characteristic for many Konzentrat-Lagerstätten accumulations, are very useful in recognizing the sedimentary environment dynamics and in stratigraphic correlations.
8
Content available The first record of Aspiduriella (Ophiuroidea) in the Upper Muschelkalk of Poland
Salamon M. A., Boczarowski A.
Geological Quarterly
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2003
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Vol. 47, No 3
307-310
EN
The ophiuroid Aspiduriella sp. is recorded for the first time from the Upper Muschelkalk (Ceratites Beds), at Nietulisko, northern margin of the Holy Cross Mountains, central Poland.
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