Zagadkowa roślina z wczesnej jury Gór Świętokrzyskich

• Autorzy: Gierliński G.D. , Ploch I. , Sabath K. , Ziaja J.

Warianty tytułu

EN

An Early Jurassic problematical plant from the Holy Cross Mountains, central Poland

• Języki publikacji: PL

Abstrakty

EN

Fossils plants (less than 0.5 m high) preserved in upright position were found in Śmiłów Quarry (E of Szydłowiec) at the northern slope of the Holy Cross Mountains. The plants were preserved as impressions of ascending narrow-leafed stems in fine-grained sandstone of the Drzewica Formation (upper Pliensbachian). The leaves are 5-25 cm long and about 2-5 mm wide; the angle between them and the short main axis ranges within 20-30o. Morphology of the plant resembles schizeacean ferns, but also that of Aethophyllum stipulare Brongniart 1828 from Anisian of France, recognized by Grauvogel-Stamm (1978) as an herbaceous gymnosperm. Grauvogel-Stamm (1978) supposed that the leaves Podozamites and cone scales Swedenborgia, common in Jurassic strata of higher palaeolatitudes, are derived from descendants of Aethophyllum. Podozamites leaves often occur in many dinosaur track-bearing horizons in the Polish Jurassic. Thus, herbaceous conifers might have played an important and often underestimated role in the Mesozoic ecosystems (possibly as a substantial part of dinosaur diet). The possiblity of coniferous equivalents of Cenophytic herbaceous angiosperms, as well as a possibility of their coevolution with Mesozoic low browsing and grazing herbivore megafauna is worth further palaeobotanical and palaeoecological studies.

Słowa kluczowe

PL

roślina nagozalążkowa; skamieniałość roślinna; wczesna jura; Góry Świętokrzyskie

EN

Gymnospermae; macroflora; plant fossils; Early Jurassic; palaeoecology

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Przegląd Geologiczny
• Rocznik: 2006
• Tom: Vol. 54, nr 2
• Strony: 139--141
• Opis fizyczny: fot., wykr., bibliogr.16 poz.

Twórcy

autor

Gierliński G.D.

autor

Ploch I.

autor

Sabath K.

autor

Ziaja J.

• Państwowy Instytut Geologiczny, ul. Rakowiecka 4, 00-750 Warszawa.

Bibliografia

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• GIERLIŃSKI G. & PIEŃKOWSKI G. 1997 - New finds of dinosaurs in liassic of the Holy Cross Mountains and its palaeoenvironmental background. Prz. Geol., 35: 199-205.
• GRAUVOGEL-STAMM L. 1978 - La flore du Gres a Voltzia (Buntsandstain Supérieur) des Vosges du Nord (France): morphologie, anatomie, interprétations phylogénique et paléogéographique. Sc. Géol. Mém. 50: 1-225.
• KARASZEWSKI W. 1962 - Stratygrafia liasu w północnym obrzeżeniu Gór Świętokrzyskich. Pr. Inst. Geol., 30: 400-416.
• KARASZEWSKI W. & KOPIK J. 1970 - Jura dolna. Inst. Geol. Pr., 56: 65-98.
• KRAMER K. U. 1990 - Schizeaceae. [In:] Kubitzki K. (ed.), The Families and Genera of Vascular Plants. Vol. I. Pteridophytes and Gymnosperms. Springer Verlag, Berlin Heidelberg: 258-263.
• MAKAREWICZÓWNA A. 1928 - Flora dolno-liasowa okolic Ostrowca. Pr. Tow. Przyj. Nauk w Wilnie, 4: 1-49.
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• REES P.M., ZIEGLER A.M. & VALDES P.J. 2000 - Jurassic phytogeography and climates: New data and model comparisons. [In:] Huber et al. (eds.), Warm Climates in Earth History. Cambridge University Press, Cambridge: 297-318.
• REYMANÓWNA M. 1991 - Two conifers from the Liassic flora of Odrowąż in Poland. [In:] Kovar-Eder J. (ed.), Proceedings Pan-European Palaeobot. Confer., Vienna. Mus. Nat. Hist.: 307-311.
• ROTHWELL G. W., GRAUVOGEL-STAMM L. & MAPES G. 2000 - An herbaceous fossil conifer: Gymnospermous ruderals in the evolution of Mesozoic vegetation. Palaeogeography, Palaeoclimatology, Palaeoecology, 156: 139-145.
• WCISŁO-LURANIEC E. 1991- Flora from Odrowąż - a typical Lower Liassic European flora. [In:] Kovar-Eder J. (ed.), Proceedings Pan-European Palaeobot. Conference, Vienna. Mus. Nat. Hist.: 331-335.
• WEGIEREK P. & ZHERIKHIN V.V. 1997 - An Early Jurassic insect fauna in the Holy Cross Mountains. Acta Palaeont. Pol., 42: 539-543.