Juhász, Miklós

Smirnova, S. B.

English

Juhász Miklós

Smirnova S. B.

University of Szeged

Acta Biol. Szeged. 31, pp. 2 1 7 — 1 4 6 (1985) GREGUSSISPORITES, A NEW SPORE GENUS FROM ALBIAN SEDIMENTS M . JUHÁSZ a n d S . B . SMIRNOVA (Received: September 30, 1984) Genus: Gregussisporites gen. nov. Derivatio nominis: The name has been given to honour PROF. D R . PÁL GREGUSS Type species: Gregussisporites orientális nov. gen. et nov. sp. D i a g n o s i s : trilete spores with subcircular to subtriangular amb. Both proximal and distal surfaces ornamented by large Verrucae which are regularly hexagonal in outline at their bases, forming a honeycomb-like " negative reticulum." D i f f e r e n t i a l d i a g n o s i s : The new genus is distinct from Tuberosisporites DÖRING 1964, Varirugosisporites D Ö R I N G 1965 in having regularly distributed Verrucae and honeycomb-like "reticulum". Gregussisporites orientális nov. gen. et nov. sp. Plate I., Figs. 1—5. Locus typicus: Súr, Mts. Bakony (Hungary), Bore Súr-1. Stratum typicum: "Munieria" clayey-marl, Tés Clay Formation, 533 m. Middle Albian. Holotype: Slide: Súr-1.: 533/1., coord.: 37.1—113.2. Pl. I., Figs. 1—2. Paratypes: Mts. Crimea (USSR), slide M-L; coord.: 45.7—104. Pl. I., Figs. 3, 4.. and slide 5G., coord. 40.5—107., Pl. I., Fig. 5. D i a g n o s i s : Trilete spores, laesurae simple, short, about 1/2 of spore radius, are often opened. Amb subcircular or rounded subtriangular. Exine 5—7 pm thick, verrucose on distal as well as proximal face. Verrucae hemisphaerical. 7—10 pm in diameter at their bases, 4—6 pm high, spaced 0.7—1.0 pm apart, formed more or less regularly hexagonal, honeycomb-like negative reticulum. Spore size: 48—80pm (holotype: 52pm). D i f f e r e n t i a l d i a g n o s i s : the Gregussisporites orientális nov. sp. differs from all verrucose species in having honeycomb-like negative reticulum both on proximal and distal surfaces. Occurrence: Hungary: Mts Bakony, Middle Albian to Upper Albian; rare species. USSR: Mts Crimea, Upper Albian; common. 2 1 8 M. JUHÀSZ and S. B. S M I R N O V A Plate l GREGUSSISPORITES, A NEW SPORT G E N U S F R O M A L B I A N S E D I M E N T S 2 1 9 References DÖRING, H. (1964): N e u e Sporenga t tungen und -a r ten aus dem Ju ra—Kre ide—Grenzbe re i ch Norddeutschlands. — Mber. deutsch. Akad. Wiss., 6. 37—45. Berlin. DÖRING, H. (1965): Die sporenpaläontologische Gliederung des Wealden in Westmecklenburg (Struktur Werle). — Geologie. , Beih., 47. 1—118. M . JUHÄSZ Department of Botany Attila Jözsef University H—6701 Szeged, P . O . Box 657 Hungary Addresses of the authcrs: S . B . SMIRNOVA Department of Paleontology M o s c o w State University 117 234 Moscow, U . S . S. R. 

Gregussisporites, a new spore genus from Albian sediments

http://acta.bibl.u-szeged.hu/22043/1/biologica_031_217-219.pdf

Gregussisporites, a new spore genus from Albian sediments

Abstract

Similar works

Full text

Available Versions

University of Szeged