Autor: Borszcz, T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wstępne dane o nagromadzeniu jeżowców z rodzaju Conulus w profilu dolnego turonu Glanowa (niecka miechowska)
Apreliminary report on echinoid accumulations of the genus Conulus in the Lower Turonian at Glanów of the Miechów Trough - southern Poland.
Autorzy:: Borszcz, T.
Gajerski, A.
Rakociński, M.
Szczepańczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/2074605.pdf
Data publikacji:: 2008
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: niecka miechowska
profil turonu Glanowa
górna kreda
turon
jeżowce
Conulus
Salenocidaris
Miechów Trough
Glanów section
Upper Cretaceous
Turonian
Echinoids
Opis:: An interesting phenomenon of echinoid accumulation occurring in the Lower Turonian (Mytiloides labiatus Zone) at Glanów village (Miechów Upland) is the main topic of the paper. The bed investigated consists of poorly cemented sandy-marly limestones with thickness of about 30 cm. The accumulation of echinoids is older than that of documented in Wielkanoc which is of middleto-late Turonian age and situated in the same region under study. Apart from a dominant echinoid species Conulus subrotundus Mantell represented by adult and juvenile forms that are dispersed in the bed, the second echinoid species -a regular form Salenocidaris granulosa (Woodward)-has also been noted. Additionally, the skeletal elements of crinoids, ophiuroids, asteroids, as well as bryozoans, annelids, poriferans and shark teeth have also been found in the bed under study. Preliminary observations indicate that the origin of the echinoid accumulation corresponds well with the Conulus bed from the Wielkanoc quarry as a result of luxuriant development of echinoids and complex sedimentological, paleoecological and tectonic factors.
Źródło:: Przegląd Geologiczny; 2008, 56, 7; 552-556
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Wspomnienia z konferencji naukowej 9th International Symposium on the Cretaceous System - 1-5 września 2013 - Ankara, Turcja
Autorzy:: Borszcz, T.
Powiązania:: https://bibliotekanauki.pl/articles/856591.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:: paleontologia
kreda
konferencje
Ankara konferencja
Źródło:: Wszechświat; 2014, 115, 04-06
0043-9592
Pojawia się w:: Wszechświat
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Echinoids as substrates for encrustation : review and quantitative analysis
Autorzy:: Borszcz, T.
Powiązania:: https://bibliotekanauki.pl/articles/191302.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Echinoids
encrustation
Recent
fossil record
patterns
meta-analysis
review
Opis:: The existing literature, including records of both fossil and extant echinoid encrustation, is quantitatively analysed and reviewed. This shows that echinoid encrustation (number of encrusted echinoid taphocoenoses) has increased nearly continuously and dramatically to the present day, as confirmed by linear regression values of more than 85 per cent. It also demonstrates that current levels of echinoid fouling stabilised by the Miocene, while there has been a more or less continuous record of echinoid encrustation since the Late Cretaceous. Several increases have been identified since echinoid encrustation first noted occurrence from the Late Carboniferous. This trend is explained as the probable result of corresponding increases in productivity (richness, biomass, energetics, ecospace utilisation) and resources in the marine environment, including epibionts and their hosts. This conclusion matches other indicators, including the number and thickness of shell beds, bioerosion and predation intensity or biodiversity. The trajectory might have been altered to some degree by biases (e.g. selective recording, sampling effort, outcrop area, rock volume) in the same way as palaeobiodiversity estimates. Two recognised long-term gaps in echinoid encrustation (Upper Ordovician–Lower Carboniferous and Permian–Lower Cretaceous) are explained in part as bias and as biological and taphonomic signals. These gaps are caused mostly by the rapid disarticulation of Palaeozoic-type echinoids, the methodology applied here, and a lack of interest in the encrustation of Jurassic echinoids. Conversely, three short-term gaps in the Cenozoic are interpreted exclusively as bias. If correct, the present study demonstrates quantitatively the step-wise increase of productivity through time. It also suggests potential focus on further study, including the collection of new data from the field and pre-existing collections, as best for other encrustation proxies (e.g., percent of coverage by epibionts, ratio of encrusted to nonencrusted shells, taxa richness or numerical abundance of sclerobionts) in cases of large-scale analyses.
Źródło:: Annales Societatis Geologorum Poloniae; 2012, 82, 2; 139--149
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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