Coscinocyathellus

Coscinocyathellus VOLOGDIN, 1940b

Specimen-type: Coscinocyathellus parvus lectotype, VOLOGDIN, 1940b, pl. 29, fig. 1

Systematics:
Order: CAPSULOCYATHIDA Zhuravleva, 1964
Suborder: COSCINOCYATHINA Zhuravleva, 1955
Superfamily: COSCINOCYATHOIDEA Taylor, 1910
Family: COSCINOCYATHELLIDAE Zhuravleva, 1956

Coscinocyathellus Coscinocyathellus parvus VOLOGDIN lectotype PIN 4754/4 Botoman, Sanashtykgol River, Altay Sayan, Russia Oblique longitudinal section (VOLOGDIN, 1940)

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) : None
• 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) : Canals
• Constitution of carcass canal system (IW) : 1 zone
• Shape of carcass canals zone A (IW) : Straight ; Waved
• Porosity of carcass canals zone A (IW) : Porous ; Spongiose
• Relationship between carcass canals zone A and intersept (IW) : Several rows 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 : 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 : Present
• Building of tabulae : Extensions of both walls
• Porosity of tabulae : Simple pores

Others informations

• Cup shapes : Cylindrical-conical
• Shape of cup bulges : None
• Number of walls : 2
• Habitus : Solitary
• Central Cavity (or internal if one wall) : Empty ; Reduce
• Thorny corolla : None
• Chambers : Present
• Chambers number : Several
• Chambers stack : Regular stack
• Other aquiferous unit : None
• Stratigraphical extension : Botoman
• Botoman : 1 ; 2 ; 3
• Geographical repartition : Russia
• Russia : Altay Sayan

Systematic

• Orders : Capsulocyathida
• Suborders inside the Capsulocyathida : Coscinocyathina
• Superfamillies inside the Coscinocyathina : Coscinocyathoidea
• Famillies inside the Coscinocyathina : Coscinocyathellidae

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
• 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 : 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
• Central Cavity (or internal if one wall) : Empty ; Reduce
• 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) : Several rows 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 : 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 : Present
• Porosity of tabulae : Simple pores
• 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
• Central Cavity (or internal if one wall) : Empty ; Reduce
• 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 ; Waved
• Porosity of carcass canals zone A (IW) : Porous ; Spongiose
• 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 : 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 : Present
• Building of tabulae : Extensions of both walls
• Chambers : Present
• Chambers number : Several
• Chambers stack : Regular stack
• 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
• Central Cavity (or internal if one wall) : Empty ; Reduce
• 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 ; Waved
• Porosity of carcass canals zone A (IW) : Porous ; Spongiose
• Relationship between carcass canals zone A and intersept (IW) : Several rows 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 : 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 : Present
• Building of tabulae : Extensions of both walls
• Porosity of tabulae : Simple pores
• Chambers : Present
• Chambers number : Several
• Chambers stack : Regular stack
• 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
• 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 : Simple pores