Claruscoscinus

Claruscoscinus HANDFIELD, 1971

Specimen-type: Eucyathus billingsi VOLOGDIN, 1940b, p. 48; holotype not designated

Systematics:
Order: ARCHAEOCYATHIDA Okulitch, 1935
Suborder: ARCHAEOCYATHINA Okulitch, 1935
Superfamily: DICTYOCYATHOIDEA Taylor, 1910
Family: CLARUSCOSCINIDAE Debrenne& A. Zhuravlev, 1992

Claruscoscinus Claruscoscinus billingsi (VOLOGDIN) specimen PIN 4754/6 Botoman, Berezovaya River, Altay Sayan, Russia Transverse section (DEBRENNE, A. ZHURAVLEV & KRUSE, 2002)

Claruscoscinus Claruscoscinus billingsi (VOLOGDIN) unlocated topotype Botoman, Berezovaya River, Altay Sayan, Russia Longitudinal section (VOLOGDIN, 1940)

Claruscoscinus Claruscoscinus billingsi (VOLOGDIN) unlocated topotype Botoman, Berezovaya River, Altay Sayan, Russia 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) : Irregular
• Size of carcass pores (OW/SW) : Uniform size
• Repartition of carcass pores (OW/SW) : Irregular repartition
• 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) : Pores
• Type of carcass pores (IW) : Simple
• Relationship between rows of carcass pores and intersept (IW) : 1
• Relationship between rows of carcass pores and tabulae (IW) : ?
• Building of carcass perforations (IW) : Without participation of vertical structures
• Carcass external plates: inner carcass wall (IW) : Present
• Type of carcass external plates (IW) : Poretubes
• Shape of carcass external plates (IW) : Planar ; Arcuate ; Waved ; S-shaped
  (straight to S-shaped poretubes)
• Direction of carcass external plates (IW) : Upwardly projecting
• Type of morphological tubes (IW) : None
• Additional sheath : None

Intervallum

• Vertical intervallar structures : Present
• Type of vertical intervallar structures : Pseudosepta
• Repartition of vertical intervallar structures pores : ?
• Porosity of vertical intervallar structures : Finely porous
• Pores of vertical intervallar structures : Circular pores
• Link between vertical intervallar structures : None
• Intervallar cells : None
• Tabulae : Present
• Building of tabulae : Extensions of outer wall
• Porosity of tabulae : Simple pores ; Irregular pores

Others informations

• Cup shapes : Cylindrical-conical
• Shape of cup bulges : None
• Number of walls : 2
• Habitus : Solitary ; Modular
• Type of modularity : Branching by external budding ; Branching by longitudinal subdivisions
• Central Cavity (or internal if one wall) : Empty ; Full
• Thorny corolla : None
• Chambers : None
• Other aquiferous unit : None
• Stratigraphical extension : Botoman ; Toyonian
• Botoman : 1 ; 2 ; 3
• Toyonian : 1
• Geographical repartition : Canada ; Mongolia ; Russia ; USA
• Russia : Altay Sayan ; Far East ; Transbaikal ; Tuva

Systematic

• Orders : Archaeocyathida
• Suborders inside the Archaeocyathida : Archaeocyathina
• Superfamillies inside the Archaeocyathina : Dictyocyathoidea
• Famillies inside the Archaeocyathina : Claruscoscinidae

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 external budding ; Branching by longitudinal subdivisions
• 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) : Present
• Type of carcass external plates (IW) : Poretubes
• Shape of carcass external plates (IW) : Planar ; Arcuate ; Waved ; S-shaped
  (straight to S-shaped poretubes)
• Direction of carcass external plates (IW) : Upwardly projecting
• 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 ; Full
• 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) : Pores
• Building of carcass perforations (IW) : Without participation of vertical structures
• Carcass external plates: inner carcass wall (IW) : Present
• Additional sheath : None
• Thorny corolla : None
• Vertical intervallar structures : Present
• Type of vertical intervallar structures : Pseudosepta
• Repartition of vertical intervallar structures pores : ?
• Link between vertical intervallar structures : None
• Intervallar cells : None
• Tabulae : Present
• Porosity of tabulae : Simple pores ; Irregular 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 ; Modular
• Type of modularity : Branching by external budding ; Branching by longitudinal subdivisions
• Central Cavity (or internal if one wall) : Empty ; Full
• 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) : Pores
• Relationship between rows of carcass pores and tabulae (IW) : ?
• Carcass external plates: inner carcass wall (IW) : Present
• Type of carcass external plates (IW) : Poretubes
• Shape of carcass external plates (IW) : Planar ; Arcuate ; Waved ; S-shaped
  (straight to S-shaped poretubes)
• Direction of carcass external plates (IW) : Upwardly projecting
• Type of morphological tubes (IW) : None
• Additional sheath : None
• Thorny corolla : None
• Vertical intervallar structures : Present
• Type of vertical intervallar structures : Pseudosepta
• Repartition of vertical intervallar structures pores : ?
• Porosity of vertical intervallar structures : Finely porous
• Pores of vertical intervallar structures : Circular pores
• Link between vertical intervallar structures : None
• Intervallar cells : None
• Tabulae : Present
• Building of tabulae : Extensions of outer wall
• 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 ; Full
• 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) : Pores
• Relationship between rows of carcass pores and intersept (IW) : 1
• Relationship between rows of carcass pores and tabulae (IW) : ?
• Building of carcass perforations (IW) : Without participation of vertical structures
• Carcass external plates: inner carcass wall (IW) : Present
• Type of morphological tubes (IW) : None
• Additional sheath : None
• Thorny corolla : None
• Vertical intervallar structures : Present
• Type of vertical intervallar structures : Pseudosepta
• Repartition of vertical intervallar structures pores : ?
• Porosity of vertical intervallar structures : Finely porous
• Pores of vertical intervallar structures : Circular pores
• Link between vertical intervallar structures : None
• Intervallar cells : None
• Tabulae : Present
• Building of tabulae : Extensions of outer wall
• Porosity of tabulae : Simple pores ; Irregular pores
• Chambers : None
• Other aquiferous unit : None

Tangential section

• Type of carcass pores (OW/SW) : Irregular
• Size of carcass pores (OW/SW) : Uniform size
• Repartition of carcass pores (OW/SW) : Irregular repartition
• Type of carcass pores (IW) : Simple
• Thorny corolla : None
• Repartition of vertical intervallar structures pores : ?
• Porosity of vertical intervallar structures : Finely porous
• Pores of vertical intervallar structures : Circular pores
• Porosity of tabulae : Simple pores ; Irregular pores