Tylocyathus
Tylocyathus VOLOGDIN, 1977
Specimen-type: Tylocyathus inaequilateralis holotype, VOLOGDIN, 1977, pl. 1, fig.7
Systematics:
Order: CAPSULOCYATHIDA Zhuravleva, 1964
Suborder: CAPSULOCYATHINA Zhuravleva, 1964
Family: TYLOCYATHIDAE A. Zhuravlev, 1988
Tylocyathus
Outer wall
- Direction of carcass external plates (OW/SW) : ?
- Type of microporous sheath (OW/SW) : Attached
- Shape of carcass perforations openings (OW/SW) : Simple only
- Presence of carcass external plates: outer wall or single wall (OW/SW) : Present
- Size of carcass pores (OW/SW) : Uniform size
- Repartition of carcass pores (OW/SW) : Homogeneous repartition
- Type of carcass perforations: outer wall or single wall (OW/SW) : Pores
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Shape of carcass external plates (OW/SW) : Arcuate
- Presence of stipules (OW/SW) : None
- Shape of morphological tubes (OW/SW) : None
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Type of carcass external plates (OW/SW) : Bracts
- Repartition types of carcass pores (OW/SW) : Straight rows of pores
- Type of additional sheath (OW/SW) : Microporous sheath
- Rows number of carcass perforations per intersept (OW/SW) : No vertical intervallar element
- Rims of carcass external plates (OW/SW) : Smooth
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
Inner wall
- Shape of carcass perforations openings (IW) : Simple
- Rows number of carcass pores per intertabula (IW) : No tabula
- Type of carcass perforations: inner wall (IW) : Pores
- Building of carcass perforations (IW) : Without participation of vertical structures
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Shape of morphological tubes (IW) : None
- Structure of inner carcass wall (IW) : Carcass wall well defined
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : None
- Rows number of carcass perforations per intersept (IW) : No vertical intervallar element
- 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 : None
- Presence of tabulae : none
Others informations
- Number of walls : 2
- Stratigraphical extension : Botoman
- Geographical repartition : Russia
- Shape of cup bulges : None
- Presence of chambers : Present
- Type of habitus : Solitary
- Structure of central Cavity (or internal if one wall) : Empty
- Presence of thorny corolla : None
- Russia : Altay Sayan ; Far East
- Botoman : 1 ; 2 ; 3
- Chambers number : 1
- Cup shapes : Subspherical
- Type of other aquiferous unit : None
- Shape of initial chamber : Subspherical
Systematic
- Orders : Capsulocyathida
- Famillies inside the Capsulocyathina : Tylocyathidae
- Suborders inside the Capsulocyathida : Capsulocyathina
- Shape of carcass perforations openings (OW/SW) : Simple only
- Cup shapes : Subspherical
External view
- Cup shapes : Subspherical
- Shape of cup bulges : None
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Type of habitus : Solitary
- Size of carcass pores (OW/SW) : Uniform size
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : Present
- Shape of carcass external plates (OW/SW) : Arcuate
- Direction of carcass external plates (OW/SW) : ?
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Presence of thorny corolla : None
- Type of carcass external plates (OW/SW) : Bracts
- Type of additional sheath (OW/SW) : Microporous sheath
- Type of additional sheath (IW) : None
- Repartition of carcass pores (OW/SW) : Homogeneous repartition
- Repartition types of carcass pores (OW/SW) : Straight rows of pores
- Shape of carcass perforations openings (OW/SW) : Simple only
- Rims of carcass external plates (OW/SW) : Smooth
- Presence of chambers : Present
- Type of other aquiferous unit : None
- Chambers number : 1
- Shape of initial chamber : Subspherical
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Number of walls : 2
Transverse section
- 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
- Number of walls : 2
- Type of habitus : Solitary
- Type of carcass perforations: outer wall or single wall (OW/SW) : Pores
- 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) : Pores
- Structure of central Cavity (or internal if one wall) : Empty
- Presence of vertical intervallar structures : None
- 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) : Present
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Rows number of carcass perforations per intersept (OW/SW) : No vertical intervallar element
- Rims of carcass external plates (OW/SW) : Smooth
- Rows number of carcass perforations per intersept (IW) : No vertical intervallar element
Longitudinal section
- 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
- Number of walls : 2
- Type of habitus : Solitary
- Type of carcass perforations: outer wall or single wall (OW/SW) : Pores
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : Present
- Direction of carcass external plates (OW/SW) : ?
- Cup shapes : Subspherical
- Type of carcass perforations: inner wall (IW) : Pores
- Structure of central Cavity (or internal if one wall) : Empty
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Shape of morphological tubes (IW) : None
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Presence of vertical intervallar structures : None
- 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
- Chambers number : 1
- Presence of chambers : Present
- Type of additional sheath (OW/SW) : Microporous sheath
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : None
- Shape of initial chamber : Subspherical
- Rims of carcass external plates (OW/SW) : Smooth
- Shape of morphological tubes (OW/SW) : None
- Rows number of carcass pores per intertabula (IW) : No tabula
- Type of microporous sheath (OW/SW) : Attached
Oblique section
- 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
- Number of walls : 2
- Type of habitus : Solitary
- Size of carcass pores (OW/SW) : Uniform size
- Type of carcass perforations: outer wall or single wall (OW/SW) : Pores
- Presence of carcass bumps: outer wall or single wall (OW/SW) : None
- Presence of stipules (OW/SW) : None
- Shape of morphological tubes (OW/SW) : None
- Rows number of carcass pores per intertabula (IW) : No tabula
- Cup shapes : Subspherical
- Building of carcass perforations (IW) : Without participation of vertical structures
- Type of carcass perforations: inner wall (IW) : Pores
- Structure of central Cavity (or internal if one wall) : Empty
- Shape of morphological tubes (IW) : None
- Type of microporous sheath (OW/SW) : Attached
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Presence of vertical intervallar structures : None
- Presence of thorny corolla : None
- Presence of intervallar cells : None
- Presence of tabulae : none
- Chambers number : 1
- Presence of chambers : Present
- Type of other aquiferous unit : None
- Presence of carcass external plates: outer wall or single wall (OW/SW) : Present
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Type of additional sheath (OW/SW) : Microporous sheath
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : None
- Shape of initial chamber : Subspherical
- Rows number of carcass perforations per intersept (OW/SW) : No vertical intervallar element
- Rims of carcass external plates (OW/SW) : Smooth
- Rows number of carcass perforations per intersept (IW) : No vertical intervallar element
- Type of carcass external plates (OW/SW) : Bracts
- Shape of carcass external plates (OW/SW) : Arcuate
- Direction of carcass external plates (OW/SW) : ?
- Shape of carcass perforations openings (IW) : Simple
- Type of links between intervallar structures : None
- Shape of carcass perforations openings (OW/SW) : Simple only
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Subdivision of carcass perforations openings (IW) : Without subdivision
Tangential section
- Shape of carcass perforations openings (OW/SW) : Simple only
- Size of carcass pores (OW/SW) : Uniform size
- Repartition of carcass pores (OW/SW) : Homogeneous repartition
- Shape of carcass perforations openings (IW) : Simple
- Type of microporous sheath (OW/SW) : Attached
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Presence of thorny corolla : None
- Repartition types of carcass pores (OW/SW) : Straight rows of pores
- Subdivision of carcass perforations openings (OW/SW) : Without subdivision
- Subdivision of carcass perforations openings (IW) : Without subdivision