Rivista e Edizione

Volume 55 (2021): Edizione 1-2 (December 2021)

Volume 54 (2020): Edizione 1-2 (December 2020)

Volume 53 (2019): Edizione 1 (January 2019)

Volume 52 (2019): Edizione 1-2 (January 2019)

Volume 51 (2017): Edizione 1-2 (December 2017)

Volume 50 (2016): Edizione 1-2 (December 2016)

Volume 49 (2015): Edizione 1-2 (December 2015)

Volume 48 (2014): Edizione 1-2 (December 2014)

Volume 47 (2013): Edizione 1-2 (January 2013)

Volume 46 (2012): Edizione 1-2 (December 2012)

Dettagli della rivista
Formato
Rivista
eISSN
1805-286X
Pubblicato per la prima volta
20 Nov 2014
Periodo di pubblicazione
1 volta all'anno
Lingue
Inglese

Cerca

Volume 47 (2013): Edizione 1-2 (January 2013)

Dettagli della rivista
Formato
Rivista
eISSN
1805-286X
Pubblicato per la prima volta
20 Nov 2014
Periodo di pubblicazione
1 volta all'anno
Lingue
Inglese

Cerca

4 Articoli
Accesso libero

Sterile Foliage of Fertile Sydneia Manleyi and Synangial Chemistry (Eusporangiate Fern, Late Asturian, Canada): A New Subfamily Sydneideae

Pubblicato online: 20 Nov 2014
Pagine: 1 - 13

Astratto

Abstract

Typification of Sydneia manleyi Pšenička et al. 2003 is based entirely on fertile foliage. Of late, attached sterile-fertile segments have been found which are illustrated and described, together with cutic-ular preparations. A new subfamily, Sydneideae subfam. nov. is erected for the monotypytic species. The synangial chemistry is compared with marattialean synangia/sporangia from the Czech Republic and from Canada.

Parole chiave

  • Sterile foliage
  • type
  • cuticles
  • Sydneideae subfam. nov.
  • sporangial chemistry
Accesso libero

Summary of Occurrence and Taxonomy of Silicified Agathoxylon-Type of Wood in Late Paleozoic Basins of the Czech Republic

Pubblicato online: 20 Nov 2014
Pagine: 14 - 26

Astratto

Abstract

The late Paleozoic deposits in several basins in the Czech Republic are well known for their abundance of silicified stems. Despite the fact they have been known since 19th century, there are few modern works of this material. The stems have been known to occur at several stratigraphic levels. During the course of recent field work such material has been found at additional levels. Most of them belong to the genus Agathoxylon, divided here into two types: cordaitalean plants and conifers. Based on previous data from Intra Sudetic and Pilsen Basins, and new material from Krkonoše Piedmont and Kladno-Rakovník Basins, this work compiles and compares the occurrence, anatomical features and taxonomy of silicified Agathoxylon-type of stems through four studied areas. The various cordaitalean - conifer ratio among all basins reflect different palaeoenvironment in each of them.

Parole chiave

  • silicified wood
  • stem anatomy of wood
  • cordaitaleans
  • conifers
  • late Paleozoic
  • Czech Republic
Accesso libero

First Record of a Fos Sil Chiton (Polyplacophora) from the Bohemian Cretaceous Basin (Late Cretaceous)

Pubblicato online: 20 Nov 2014
Pagine: 27 - 32

Astratto

Abstract

The first record of a chiton (Polyplacophora) from the Bohemian Cretaceous Basin (Late Creta-ceous) is described herein. It comes from the working quarry of Plaňany, located near the town Kolín. Excavated deposits are of the late Cenomanian - early Turonian. The poorly preserved specimen consists of a tail valve remain and two intermediate valves, it is associated herein only with order level - i.e. Le-pidopleurida Thiele, 1910. The state of its preservation shows signs of corrosion of dorsal part caused probably by biologic digestion (in stomach) and/or, more probably, by long exposure at the sea bottom. Stratigraphically, the layer yielding chiton shell is referred to be the late Cenomanian in age. The chiton living conditions are interpreted as very shallow water environment (not exceeding 20m) with irregular rocky basement possessing numerous caves and crevices.

Parole chiave

  • Polyplacophora
  • ?Lepidopleurida
  • Upper Cretaceous
  • late Cenomanian - Turonian interval
  • Bohemian Cretaceous Basin
  • Czech Republic
Accesso libero

Index of Fossiliferous Localities of the TŘenice Formation (Lower Ordovician of the Prague Basin, Czech Republic)

Pubblicato online: 20 Nov 2014
Pagine: 33 - 64

Astratto

Abstract

Twenty nine fossiliferous localities of the Třenice Formation are described. As we were able to find they represent all fossil sites ever been described from that basal unit of the Prague Basin. Based on critical evaluation of the previously published data fossil taxa from all relevant publications are summa-rized and historic names used for the localities are mentioned. Updated lists of fauna are compiled for each locality as well as for the formation as a whole.

Parole chiave

  • Ordovician
  • Třenice Formation
  • Prague Basin
  • fossils
4 Articoli
Accesso libero

Sterile Foliage of Fertile Sydneia Manleyi and Synangial Chemistry (Eusporangiate Fern, Late Asturian, Canada): A New Subfamily Sydneideae

Pubblicato online: 20 Nov 2014
Pagine: 1 - 13

Astratto

Abstract

Typification of Sydneia manleyi Pšenička et al. 2003 is based entirely on fertile foliage. Of late, attached sterile-fertile segments have been found which are illustrated and described, together with cutic-ular preparations. A new subfamily, Sydneideae subfam. nov. is erected for the monotypytic species. The synangial chemistry is compared with marattialean synangia/sporangia from the Czech Republic and from Canada.

Parole chiave

  • Sterile foliage
  • type
  • cuticles
  • Sydneideae subfam. nov.
  • sporangial chemistry
Accesso libero

Summary of Occurrence and Taxonomy of Silicified Agathoxylon-Type of Wood in Late Paleozoic Basins of the Czech Republic

Pubblicato online: 20 Nov 2014
Pagine: 14 - 26

Astratto

Abstract

The late Paleozoic deposits in several basins in the Czech Republic are well known for their abundance of silicified stems. Despite the fact they have been known since 19th century, there are few modern works of this material. The stems have been known to occur at several stratigraphic levels. During the course of recent field work such material has been found at additional levels. Most of them belong to the genus Agathoxylon, divided here into two types: cordaitalean plants and conifers. Based on previous data from Intra Sudetic and Pilsen Basins, and new material from Krkonoše Piedmont and Kladno-Rakovník Basins, this work compiles and compares the occurrence, anatomical features and taxonomy of silicified Agathoxylon-type of stems through four studied areas. The various cordaitalean - conifer ratio among all basins reflect different palaeoenvironment in each of them.

Parole chiave

  • silicified wood
  • stem anatomy of wood
  • cordaitaleans
  • conifers
  • late Paleozoic
  • Czech Republic
Accesso libero

First Record of a Fos Sil Chiton (Polyplacophora) from the Bohemian Cretaceous Basin (Late Cretaceous)

Pubblicato online: 20 Nov 2014
Pagine: 27 - 32

Astratto

Abstract

The first record of a chiton (Polyplacophora) from the Bohemian Cretaceous Basin (Late Creta-ceous) is described herein. It comes from the working quarry of Plaňany, located near the town Kolín. Excavated deposits are of the late Cenomanian - early Turonian. The poorly preserved specimen consists of a tail valve remain and two intermediate valves, it is associated herein only with order level - i.e. Le-pidopleurida Thiele, 1910. The state of its preservation shows signs of corrosion of dorsal part caused probably by biologic digestion (in stomach) and/or, more probably, by long exposure at the sea bottom. Stratigraphically, the layer yielding chiton shell is referred to be the late Cenomanian in age. The chiton living conditions are interpreted as very shallow water environment (not exceeding 20m) with irregular rocky basement possessing numerous caves and crevices.

Parole chiave

  • Polyplacophora
  • ?Lepidopleurida
  • Upper Cretaceous
  • late Cenomanian - Turonian interval
  • Bohemian Cretaceous Basin
  • Czech Republic
Accesso libero

Index of Fossiliferous Localities of the TŘenice Formation (Lower Ordovician of the Prague Basin, Czech Republic)

Pubblicato online: 20 Nov 2014
Pagine: 33 - 64

Astratto

Abstract

Twenty nine fossiliferous localities of the Třenice Formation are described. As we were able to find they represent all fossil sites ever been described from that basal unit of the Prague Basin. Based on critical evaluation of the previously published data fossil taxa from all relevant publications are summa-rized and historic names used for the localities are mentioned. Updated lists of fauna are compiled for each locality as well as for the formation as a whole.

Parole chiave

  • Ordovician
  • Třenice Formation
  • Prague Basin
  • fossils

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