Advertisement

Facies

, Volume 38, Issue 1, pp 197–206 | Cite as

Asterocalculus heraki n. gen., n. sp., a new calcareous alga (gymnocodiaceae) from the Upper Triassic hauptdolomite of Žumberak, north Croatia

  • Branko Sokač
  • Tonći Grgasović
Article

Summary

A sample of Upper Triassic, early diagenetic, peritidal dolomite (Hauptdolomite) from western Žumberak (north Croatia) contains a new species of calcareous algae (family Gymnocodiaceae). The new algal species is accompanied by rich foraminiferal assemblage consisting of numerousTriasina hantkeni, Auloconus permodiscoides, andAulotortus sinuousus and less numerousAulotortus friedli andA. tenuis. The new algal species is represented by numerous variously oriented sections which enable the accurate description and interpretation of its morphologic features of both outer shape and inner structure. In the present paper the new algal species is described asAsterocalculus heraki n. gen., n. sp., characterized by a cylindrical thallus with loosely spaced levels of tubular protrusions, supposedly functioning as another type of reproductive structures, in addition to ‘conceptacles’, or having some unknown physiological function.

Keywords

Gymnocodiaceae New taxa Žumberak (Croatia) Upper Triassic (Hauptdolomite) 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bucur I.I. (1993): Some new or poorly known calcareous algae (Dasycladales, Gymnocodiaceae) in the Lower Cretaceous deposits from the Resita-Moldova Noua zone (Southern Carpathians, Romania).—Rev. Españ. MicropaleontologiaXXV/1, 93–126, 9 Pls., MadridGoogle Scholar
  2. — (1994): Lower Cretaceous Halimedaceae and Gymnocodiaceae from Southern Carpathians and Apuseni Mountains (Romania) and the systematic position of the Gymnocodiaceae.—Beiträge Paleontol.19 (Proceedings of the Internat. Symp. and Field-Meeting ‘Alpine Algae 93’), 1–11, 7 Pls., WienGoogle Scholar
  3. Bukovac, J., Grgasović, T., Glovacki Jernej, Ž., Jerinić, G., Galović, I. & Prtolian, B. (1995): Litostratigratska raščlamba dolomitnih naslaga trijasa jugozapadnog Žumberka u okviru radova na Geološkoj karti Republike Hrvatske 1∶50.000 [Litostratigraphic Division of Triassic Dolomite Deposits in SW Žumberak Mt. Under the Works on the Geological Map of the Republic of Croatia 1∶50000].—In:Vlahović, I., Velić, I. & Šparica, M. (eds.): 1. hrvatski geoloski kongres [First Croatian Geological Congress], Zbornik radova [Proceedings]1, 137–142, 1 Fig., ZagrebGoogle Scholar
  4. Ciarapica, G., Cirilli, S., Passeri, L., Trincianti, E. &Zaninetti, L. (1987): ‘Anidriti di Burano’, et ‘Formation du Monte Cetona’ (nouvelle formation), biostratigraphie de deux séries-types du Trias supérieur dans l'Apenin septentrional.—Rev. Paléobiologie6/2, 341–409, 4 Figs., 31 Pls., GenèveGoogle Scholar
  5. Dragastan, O., Richter, D.K., Kube, B., Popa, M., Sarbu, A. &Cingulea, I. (1997): A new family of Paleo-Mesozoic calcareous green siponous-Algae (Order Bryopsidales, Class Bryopsidophyceae, Phylum Siphonophyta).—Rev. Españ. MicropaleontologiaXXIX/1, 69–135, 10 Pls., MadridGoogle Scholar
  6. Elliott, G.F. (1955): The Permian calcareous algaGymnocodium. —Micropaleontology,1/1, 83–90, 3 Pls., New YorkCrossRefGoogle Scholar
  7. Grgasović, T. (1995): Stratigraphy of Middle and Upper Triassic Deposits From Zumberak Mt. (W Croatia).—6th International Symposium on Fossil Algae and Carbonate Platforms, Abstracts, 34, AnkaraGoogle Scholar
  8. Herak, M. &Kochansky, V. (1960): Gymnocodiacean calcareous algae in the Permian of Yugoslavia.—Geol. vjesnik13, 185–196, 6 Pls., ZagrebGoogle Scholar
  9. Kochansky-Devidé, V. &Slišković, T. (1969): Gornjopermski mikrofosili Han Orahovice i Šuljaca u Bosni s osobitim obzirom na alguPermocalculus fragilis [Oberpermische Mikrofossilen von Han Orahovica and Šuljci in Bosnien mit besonderer Berücksichtigung der AlgePermocalculus fragilis]—Geol. vjesnik22, 105–109, 1 Fig., 2 Pl., ZagrebGoogle Scholar
  10. Mu, X-N. (1981): Upper Permian calcareous algae from Western Guizhou.—Acta Paleontologica Sinica20/1, 33–49, 4 Pls., NanjingGoogle Scholar
  11. — (1991): Fossil Udoteaceae and Gymnocodiaceae.—In:Riding, R. (ed.): Calcareous Algae and Stromatolites.—146–166, 1 Pl., Berlin (Springer)Google Scholar
  12. Mu, X-N. &Riding, R. (1983): Silicified Gymnocodiaceae algae from the Permian of Nanjing, China.—Paleontology26/2, 201–276, 2 Pls., LondonGoogle Scholar
  13. Pia, J (1920): Die Siphoneae verticillatae vom Karbon bis zur Kreide.—Abhandlungen der zoologisch-botanischen Gesellschaft in WienXI/2, 263 p., 8 Pls., WienGoogle Scholar
  14. Roux, A. (1991): Revision des Gymnocodiaceae (Algues rouges, Permien-Crétacé). Taxonomie, Biostratigraphie, Paléobiogéographie. 2e Partie: Inventaire taxonomique critique des espèces de Gymnocodiacées du Permien et du Trias.—Rev. Micropaléont.34/2, 136–173, 6 Figs., 2 Tabl., 2 Pls., ParisGoogle Scholar
  15. Roux, A. &Deloffre, R. (1990): Revision des Gymnocodiaceae (Algues rouges, Permien-Crétacé). Taxonomie, Biostratigraphie, Paléobiogéographie. 1re partie: Généralités sur la familie.—Rev. Micropaléont.32/2, 123–137 2 Figs., 2 Tabl., 2 Pls., ParisGoogle Scholar
  16. Salaj, J., Trifonova, E. &Gheorghian, D. (1988): A biostratigraphic zonation based on benthic foraminifera in the Triassic deposits of the Carpatho-Balkans.—Rev. PalÈobiologie, Vol. Spèc No.2, 153–159, 3 Figs., GenèveGoogle Scholar
  17. Schlagintweit, F. (1991): On the occurrence of the genusPermocalculus Elliott, 1955 (Calcareous algae Gymnocodiaceae) in the Upper Cretaceous of the Northern Calcareous Alps (Branderfleck-Gosau Formation) with the deseription ofPermocalculus gosaviensis n. sp.—Rev. Paléobiologie10/1, 37–46, 2 Pls., GenèveGoogle Scholar
  18. Sokač, B. &Grgasović, T. (1995):Dissocladella bystrickyi n. sp., a New Calcareous Alga (Dasycladaceae) from Upper Triassic Dolomites of Mt. Medvednica (Northern Croatia).—Geologia croatica48/1, 1–5, 4 Figs., 1 Tabl., 2 Pls., ZagrebGoogle Scholar

Copyright information

© Institut für Paläontologie, Universität Erlangen 1998

Authors and Affiliations

  • Branko Sokač
    • 1
  • Tonći Grgasović
    • 1
  1. 1.Institute of GeologyZagrebCroatia

Personalised recommendations