Dupliporocyathus
Dupliporocyathus YAZMIR, 1975
Specimen-type: Duplioporocyathus tumulosus holotype, YAZMIR& others, 1975, pl. 21, fig. 5-7
Systematics:
Order: AJACICYATHIDA R. Bedford& J. Bedford, 1939
Suborder: AJACICYATHINA R. Bedford& J. Bedford, 1939
Superfamily: ETHMOPHYLLOIDEA Okulitch, 1937
Family: ETHMOPHYLLIDAE Okulitch, 1937
Notes:
Outer carcass wall: canals shape and direction are uncertain.
Dupliporocyathus
Dupliporocyathus
Outer wall
- Shape of carcass perforations openings (OW/SW) : ?
- Direction of carcass canals tubes (OW/SW) : ?
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Origin of carcass canals (OW/SW) : Limited to the carcass
- Type of carcass perforations: outer wall or single wall (OW/SW) : Canals
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of stipules (OW/SW) : ?
- Shape of morphological tubes (OW/SW) : S-shaped
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Shape of carcass canals tubes (OW/SW) : ?
- Type of additional sheath (OW/SW) : None
- Rows number of carcass perforations per intersept (OW/SW) : More than 2 rows per intersept only
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
Inner wall
- Shape of carcass perforations openings (IW) : ?
- Shape of carcass canals tubes zone A (IW) : Straight
- Direction of carcass canals tubes zone A (IW) : Downwardly opening
- Porosity of carcass canals tubes zone A (IW) : Porous
- Type of carcass perforations: inner wall (IW) : Canals
- Building of carcass perforations (IW) : Without participation of vertical structures
- Localization of carcass bracts (IW) : Bract arises on inner wall
- Presence of carcass external plates: inner carcass wall (IW) : Present
- Shape of morphological tubes (IW) : V-shaped
- Shape of carcass external plates (IW) : Planar only ; Arcuate
- Structure of inner carcass wall (IW) : Carcass wall well defined
- Constitution of carcass canal system (IW) : 1 zone
- Type of carcass external plates (IW) : Bracts
- Direction of carcass external plates (IW) : Upwardly projecting
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : ?
- Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
- Rims of carcass external plates (IW) : Smooth
- Subdivision of carcass perforations openings (IW) : Without subdivision
Intervallum
- Presence of intervallar cells : None
- Type of links between intervallar structures : None
- Presence of vertical intervallar structures : Present
- Presence of tabulae : none
- Type of vertical intervallar structures : Septa
- Repartition of vertical intervallar structures pores : Sparsely porous
- Porosity type of vertical intervallar structures : Finely porous
- Pores shape of vertical intervallar structures : Circular pores
Others informations
- Number of walls : 2
- Stratigraphical extension : Atdabanian
- Geographical repartition : Russia
- Shape of cup bulges : Longitudinally plicate (outer wall)
- Presence of chambers : None
- Type of habitus : Solitary ; Modular
- Structure of central Cavity (or internal if one wall) : Empty
- Presence of thorny corolla : None
- Russia : Transbaikal
- Atdabanian : 4
- Type of modularity : Branching by longitudinal subdivisions ; Catenulate
- Cup shapes : Cylindrical-conical
- Type of other aquiferous unit : None
Systematic
- Orders : Ajacicyathida
- Superfamillies inside the Ajacicyathina : Ethmophylloidea
- Famillies inside the Ajacicyathina : Ethmophyllidae
- Shape of carcass perforations openings (OW/SW) : ?
- Cup shapes : Cylindrical-conical
- Suborders inside the Ajacicyathida : Ajacicyathina
External view
- Cup shapes : Cylindrical-conical
- Shape of cup bulges : Longitudinally plicate (outer wall)
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Type of modularity : Branching by longitudinal subdivisions ; Catenulate
- Type of habitus : Solitary ; Modular
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Localization of carcass bracts (IW) : Bract arises on inner wall
- Shape of carcass external plates (IW) : Planar only ; Arcuate
- Direction of carcass external plates (IW) : Upwardly projecting
- Presence of carcass external plates: inner carcass wall (IW) : Present
- Presence of thorny corolla : None
- Type of carcass external plates (IW) : Bracts
- Type of additional sheath (OW/SW) : None
- Type of additional sheath (IW) : None
- Shape of carcass perforations openings (OW/SW) : ?
- Rims of carcass external plates (IW) : Smooth
- Presence of chambers : None
- Type of other aquiferous unit : None
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Number of walls : 2
Transverse section
- Shape of cup bulges : Longitudinally plicate (outer wall)
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Structure of inner carcass wall (IW) : Carcass wall well defined
- Number of walls : 2
- Type of habitus : Solitary ; Modular
- Type of carcass perforations: outer wall or single wall (OW/SW) : Canals
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Building of carcass perforations (IW) : Without participation of vertical structures
- Type of carcass perforations: inner wall (IW) : Canals
- Structure of central Cavity (or internal if one wall) : Empty
- Type of vertical intervallar structures : Septa
- Presence of vertical intervallar structures : Present
- Presence of thorny corolla : None
- Type of links between intervallar structures : None
- Presence of intervallar cells : None
- Presence of tabulae : none
- Type of other aquiferous unit : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: inner carcass wall (IW) : Present
- Rows number of carcass perforations per intersept (OW/SW) : More than 2 rows per intersept only
- Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
- Rims of carcass external plates (IW) : Smooth
- Constitution of carcass canal system (IW) : 1 zone
- Porosity of vertical intervallar structures : Aporous ; Multiperforate
Longitudinal section
- Shape of cup bulges : Longitudinally plicate (outer wall)
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Structure of inner carcass wall (IW) : Carcass wall well defined
- Number of walls : 2
- Type of modularity : Branching by longitudinal subdivisions ; Catenulate
- Type of habitus : Solitary ; Modular
- Direction of carcass canals tubes (OW/SW) : ?
- Origin of carcass canals (OW/SW) : Limited to the carcass
- Type of carcass perforations: outer wall or single wall (OW/SW) : Canals
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Cup shapes : Cylindrical-conical
- Constitution of carcass canal system (IW) : 1 zone
- Shape of carcass canals tubes zone A (IW) : Straight
- Porosity of carcass canals tubes zone A (IW) : Porous
- Direction of carcass canals tubes zone A (IW) : Downwardly opening
- Type of carcass perforations: inner wall (IW) : Canals
- Structure of central Cavity (or internal if one wall) : Empty
- Localization of carcass bracts (IW) : Bract arises on inner wall
- Shape of carcass external plates (IW) : Planar only ; Arcuate
- Direction of carcass external plates (IW) : Upwardly projecting
- Presence of carcass external plates: inner carcass wall (IW) : Present
- Shape of morphological tubes (IW) : V-shaped
- Type of vertical intervallar structures : Septa
- Repartition of vertical intervallar structures pores : Sparsely porous
- Porosity type of vertical intervallar structures : Finely porous
- Pores shape of vertical intervallar structures : Circular pores
- Presence of vertical intervallar structures : Present
- Presence of thorny corolla : None
- Type of links between intervallar structures : None
- Presence of intervallar cells : None
- Presence of tabulae : none
- Type of other aquiferous unit : None
- Presence of chambers : None
- Shape of carcass canals tubes (OW/SW) : ?
- Type of additional sheath (OW/SW) : None
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : ?
- Rims of carcass external plates (IW) : Smooth
- Shape of morphological tubes (OW/SW) : S-shaped
- Porosity of vertical intervallar structures : Aporous ; Multiperforate
Oblique section
- Shape of cup bulges : Longitudinally plicate (outer wall)
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Structure of inner carcass wall (IW) : Carcass wall well defined
- Number of walls : 2
- Type of habitus : Solitary ; Modular
- Direction of carcass canals tubes (OW/SW) : ?
- Origin of carcass canals (OW/SW) : Limited to the carcass
- Type of carcass perforations: outer wall or single wall (OW/SW) : Canals
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of stipules (OW/SW) : ?
- Shape of morphological tubes (OW/SW) : S-shaped
- Cup shapes : Cylindrical-conical
- Shape of carcass canals tubes zone A (IW) : Straight
- Porosity of carcass canals tubes zone A (IW) : Porous
- Direction of carcass canals tubes zone A (IW) : Downwardly opening
- Building of carcass perforations (IW) : Without participation of vertical structures
- Type of carcass perforations: inner wall (IW) : Canals
- Structure of central Cavity (or internal if one wall) : Empty
- Shape of morphological tubes (IW) : V-shaped
- Type of vertical intervallar structures : Septa
- Repartition of vertical intervallar structures pores : Sparsely porous
- Porosity type of vertical intervallar structures : Finely porous
- Pores shape of vertical intervallar structures : Circular pores
- Presence of vertical intervallar structures : Present
- Presence of thorny corolla : None
- Presence of intervallar cells : None
- Presence of tabulae : none
- Presence of chambers : None
- Type of other aquiferous unit : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: inner carcass wall (IW) : Present
- Shape of carcass canals tubes (OW/SW) : ?
- Type of additional sheath (OW/SW) : None
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : ?
- Rows number of carcass perforations per intersept (OW/SW) : More than 2 rows per intersept only
- Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
- Rims of carcass external plates (IW) : Smooth
- Shape of carcass perforations openings (IW) : ?
- Type of carcass external plates (IW) : Bracts
- Shape of carcass external plates (IW) : Planar only ; Arcuate
- Direction of carcass external plates (IW) : Upwardly projecting
- Porosity of vertical intervallar structures : Aporous ; Multiperforate
- Type of links between intervallar structures : None
- Shape of carcass perforations openings (OW/SW) : ?
- Localization of carcass bracts (IW) : Bract arises on inner wall
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Subdivision of carcass perforations openings (IW) : Without subdivision
- Constitution of carcass canal system (IW) : 1 zone
Tangential section
- Shape of carcass perforations openings (OW/SW) : ?
- Shape of carcass perforations openings (IW) : ?
- Presence of thorny corolla : None
- Repartition of vertical intervallar structures pores : Sparsely porous
- Porosity type of vertical intervallar structures : Finely porous
- Pores shape of vertical intervallar structures : Circular pores
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Subdivision of carcass perforations openings (IW) : Without subdivision
- Porosity of carcass canals tubes zone A (IW) : Porous