Torosocyathus

Torosocyathus KASHINA ,1972

Specimen-type: Torosocyathus provisus holotype, VOLOGDIN& KASHINA, 1972, pl.20a, fig. 1

Systematics:
Order: AJACICYATHIDA R. Bedford& J. Bedford, 1939
Suborder: AJACICYATHINA R. Bedford& J. Bedford, 1939
Superfamily: LENOCYATHOIDEA Zhuravleva, 1956
Family: TOROSOCYATHIDAE Debrenne, A. Zhuravlev& Kruse, 2002

Torosocyathus

Torosocyathus provisus KASHINA holotype KGU 19/729a Atdabanian, Uyar River, Altay Sayan, Russia Transverse section (VOLOGDIN & KASHINA, 1972).

Outer wall

Structure of outer carcass wall (OW/SW) : Carcass wall well defined
Carcass perforations: outer wall or single wall (OW/SW) : Pores
Type of carcass pores (OW/SW) : Simple
Size of carcass pores (OW/SW) : Uniform size
Repartition of carcass pores (OW/SW) : Regular repartition
Repartition types of carcass pores (OW/SW) : Straight rows of pores
Relationship between rows of carcass pores and intersept (OW/SW) : ?
Carcass bumps: outer wall or single wall (OW/SW) : Present
Perforation of carcass bumps (OW/SW) : Multiperforate
Carcass external plates: outer wall or single wall (OW/SW) : None
Stipules : None
Type of morphological tubes (OW/SW) : None
Additional sheath : None

Inner wall

Structure of inner carcass wall (IW) : Carcass wall well defined
Stipules : None
Carcass perforations: inner wall (IW) : Pores
Type of carcass pores (IW) : Simple
Relationship between rows of carcass pores and intersept (IW) : Stirrup pores
Relationship between rows of carcass pores and tabulae (IW) : No tabula
Building of carcass perforations (IW) : Without participation of vertical structures
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Type of morphological tubes (IW) : None
Additional sheath : None

Intervallum

Vertical intervallar structures : Present
Type of vertical intervallar structures : Septa
Repartition of vertical intervallar structures pores : Completely porous
Porosity of vertical intervallar structures : ?
Pores of vertical intervallar structures : Circular pores
Link between vertical intervallar structures : None
Intervallar cells : None
Tabulae : none

Others informations

Cup shapes : Cylindrical-conical
Shape of cup bulges : None
Number of walls : 2
Habitus : Solitary ; Modular
Type of modularity : Branching by longitudinal subdivisions ; Catenulate
Central Cavity (or internal if one wall) : Empty
Thorny corolla : None
Chambers : None
Other aquiferous unit : None
Stratigraphical extension : Atdabanian ; Botoman
Atdabanian : 1 ; 2 ; 3 ; 4
Botoman : 1
Geographical repartition : Mongolia ; Russia
Russia : Altay Sayan

Systematic

Orders : Ajacicyathida
Suborders inside the Ajacicyathida : Ajacicyathina
Superfamillies inside the Ajacicyathina : Lenocyathoidea
Famillies inside the Ajacicyathina : Torosocyathidae

External view

Cup shapes : Cylindrical-conical
Shape of cup bulges : None
Structure of outer carcass wall (OW/SW) : Carcass wall well defined
Structure of inner carcass wall (IW) : Carcass wall well defined
Habitus : Solitary ; Modular
Type of modularity : Branching by longitudinal subdivisions ; Catenulate
Size of carcass pores (OW/SW) : Uniform size
Carcass bumps: outer wall or single wall (OW/SW) : Present
Perforation of carcass bumps (OW/SW) : Multiperforate
Carcass external plates: outer wall or single wall (OW/SW) : None
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Additional sheath : None
Thorny corolla : None

Transverse section

Shape of cup bulges : None
Number of walls : 2
Structure of outer carcass wall (OW/SW) : Carcass wall well defined
Structure of inner carcass wall (IW) : Carcass wall well defined
Habitus : Solitary ; Modular
Central Cavity (or internal if one wall) : Empty
Carcass perforations: outer wall or single wall (OW/SW) : Pores
Relationship between rows of carcass pores and intersept (OW/SW) : ?
Carcass bumps: outer wall or single wall (OW/SW) : Present
Perforation of carcass bumps (OW/SW) : Multiperforate
Carcass external plates: outer wall or single wall (OW/SW) : None
Carcass perforations: inner wall (IW) : Pores
Building of carcass perforations (IW) : Without participation of vertical structures
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Additional sheath : None
Thorny corolla : None
Vertical intervallar structures : Present
Type of vertical intervallar structures : Septa
Repartition of vertical intervallar structures pores : Completely porous
Link between vertical intervallar structures : None
Intervallar cells : None
Tabulae : none
Other aquiferous unit : None

Longitudinal section

Shape of cup bulges : None
Number of walls : 2
Structure of outer carcass wall (OW/SW) : Carcass wall well defined
Structure of inner carcass wall (IW) : Carcass wall well defined
Habitus : Solitary ; Modular
Type of modularity : Branching by longitudinal subdivisions ; Catenulate
Central Cavity (or internal if one wall) : Empty
Carcass perforations: outer wall or single wall (OW/SW) : Pores
Carcass bumps: outer wall or single wall (OW/SW) : Present
Perforation of carcass bumps (OW/SW) : Multiperforate
Carcass external plates: outer wall or single wall (OW/SW) : None
Stipules : None
Type of morphological tubes (OW/SW) : None
Carcass perforations: inner wall (IW) : Pores
Relationship between rows of carcass pores and tabulae (IW) : No tabula
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Type of morphological tubes (IW) : None
Additional sheath : None
Thorny corolla : None
Vertical intervallar structures : Present
Type of vertical intervallar structures : Septa
Repartition of vertical intervallar structures pores : Completely porous
Porosity of vertical intervallar structures : ?
Pores of vertical intervallar structures : Circular pores
Link between vertical intervallar structures : None
Intervallar cells : None
Tabulae : none
Chambers : None
Other aquiferous unit : None

Oblique section

Shape of cup bulges : None
Number of walls : 2
Structure of outer carcass wall (OW/SW) : Carcass wall well defined
Structure of inner carcass wall (IW) : Carcass wall well defined
Habitus : Solitary ; Modular
Central Cavity (or internal if one wall) : Empty
Carcass perforations: outer wall or single wall (OW/SW) : Pores
Size of carcass pores (OW/SW) : Uniform size
Relationship between rows of carcass pores and intersept (OW/SW) : ?
Carcass bumps: outer wall or single wall (OW/SW) : Present
Perforation of carcass bumps (OW/SW) : Multiperforate
Carcass external plates: outer wall or single wall (OW/SW) : None
Stipules : None
Type of morphological tubes (OW/SW) : None
Carcass perforations: inner wall (IW) : Pores
Relationship between rows of carcass pores and intersept (IW) : Stirrup pores
Relationship between rows of carcass pores and tabulae (IW) : No tabula
Building of carcass perforations (IW) : Without participation of vertical structures
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Type of morphological tubes (IW) : None
Additional sheath : None
Thorny corolla : None
Vertical intervallar structures : Present
Type of vertical intervallar structures : Septa
Repartition of vertical intervallar structures pores : Completely porous
Porosity of vertical intervallar structures : ?
Pores of vertical intervallar structures : Circular pores
Link between vertical intervallar structures : None
Intervallar cells : None
Tabulae : none
Chambers : None
Other aquiferous unit : None

Tangential section

Type of carcass pores (OW/SW) : Simple
Size of carcass pores (OW/SW) : Uniform size
Repartition of carcass pores (OW/SW) : Regular repartition
Repartition types of carcass pores (OW/SW) : Straight rows of pores
Type of carcass pores (IW) : Simple
Thorny corolla : None
Repartition of vertical intervallar structures pores : Completely porous
Porosity of vertical intervallar structures : ?
Pores of vertical intervallar structures : Circular pores