Olgaecyathus

Olgaecyathus BORODINA, 1974

Specimen-type: Olgaecyathus fistulosus holotype, BORODINA, 1974, pl. 16, fig. 8

Systematics:
Order: AJACICYATHIDA R. Bedford& J. Bedford, 1939
Suborder: AJACICYATHINA R. Bedford& J. Bedford, 1939
Superfamily: TERCYATHOIDEA Vologdin, 1939
Family: OLGAECYATHIDAE Borodina, 1974

Olgaecyathus Olgaecyathus fistulosus BORODINA holotype TsSGM 429/2 Botoman, Kazly River, Altay Sayan, Russia Oblique longitudinal section (DEBRENNE, A. ZHURAVLEV & KRUSE, 2002).

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) : Slitlike
• 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) : None
• Carcass external plates: outer wall or single wall (OW/SW) : None
• Stipules : None
• Type of morphological tubes (OW/SW) : None
• Additional sheath : Present on outer wall (or single wall)
• Type of additional sheath (OW/SW) : Mesh
• Type of mesh (OW/SW) : Clathri

Inner wall

• Structure of inner carcass wall (IW) : Carcass wall well defined
• Stipules : None
• Carcass perforations: inner wall (IW) : Canals
• Constitution of carcass canal system (IW) : 1 zone
• Shape of carcass canals zone A (IW) : Straight
• Porosity of carcass canals zone A (IW) : Non-porous
• Relationship between carcass canals zone A and intersept (IW) : 1 row of canals per intersept
• Direction of carcass canals zone A (IW) : Upwardly opening ; Horizontal opening
  (horizontal to upwardly opening)
• 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 : Present on outer wall (or single wall)

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 : Present ; none
  (pectinate tabulae may be present)
• Building of tabulae : Independent from walls
• Porosity of tabulae : Pecten
  (pectinate tabulae may be present)

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 : Botoman
• Botoman : 2
• Geographical repartition : Russia
• Russia : Altay Sayan

Systematic

• Orders : Ajacicyathida
• Suborders inside the Ajacicyathida : Ajacicyathina
• Superfamillies inside the Ajacicyathina : Tercyathoidea
• Famillies inside the Ajacicyathina : Olgaecyathidae

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) : None
• 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 : Present on outer wall (or single wall)
• Type of additional sheath (OW/SW) : Mesh
• Type of mesh (OW/SW) : Clathri
• 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) : None
• Carcass external plates: outer wall or single wall (OW/SW) : None
• Carcass perforations: inner wall (IW) : Canals
• Relationship between carcass canals zone A and intersept (IW) : 1 row of canals per intersept
• 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 : Present on outer wall (or single wall)
• 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 : Present ; none
  (pectinate tabulae may be present)
• Porosity of tabulae : Pecten
  (pectinate tabulae may be present)
• 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) : None
• 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) : Canals
• Constitution of carcass canal system (IW) : 1 zone
• Shape of carcass canals zone A (IW) : Straight
• Porosity of carcass canals zone A (IW) : Non-porous
• Direction of carcass canals zone A (IW) : Upwardly opening ; Horizontal opening
  (horizontal to upwardly opening)
• Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
• Type of morphological tubes (IW) : None
• Additional sheath : Present on outer wall (or single wall)
• Type of additional sheath (OW/SW) : Mesh
• 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 : Present ; none
  (pectinate tabulae may be present)
• Building of tabulae : Independent from walls
• 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) : None
• 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) : Canals
• Constitution of carcass canal system (IW) : 1 zone
• Shape of carcass canals zone A (IW) : Straight
• Porosity of carcass canals zone A (IW) : Non-porous
• Relationship between carcass canals zone A and intersept (IW) : 1 row of canals per intersept
• Direction of carcass canals zone A (IW) : Upwardly opening ; Horizontal opening
  (horizontal to upwardly opening)
• 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 : Present on outer wall (or single wall)
• Type of additional sheath (OW/SW) : Mesh
• Type of mesh (OW/SW) : Clathri
• 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 : Present ; none
  (pectinate tabulae may be present)
• Building of tabulae : Independent from walls
• Porosity of tabulae : Pecten
  (pectinate tabulae may be present)
• Chambers : None
• Other aquiferous unit : None

Tangential section

• Type of carcass pores (OW/SW) : Slitlike
• 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 mesh (OW/SW) : Clathri
• Thorny corolla : None
• Repartition of vertical intervallar structures pores : Completely porous
• Porosity of vertical intervallar structures : ?
• Pores of vertical intervallar structures : Circular pores
• Porosity of tabulae : Pecten
  (pectinate tabulae may be present)