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 Tylocyathus bullatus (ZHURAVLEVA) holotype TsSGM 264/7 Botoman, Kazyr River, Altay Sayan, Russia Oblique longitudinal section (MUSATOV & others, 1961). |
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) : Present
- Type of carcass external plates (OW/SW) : Bracts
- Shape of carcass external plates (OW/SW) : Arcuate
- Direction of carcass external plates (OW/SW) : ?
- Stipules : None
- Type of morphological tubes (OW/SW) : None
- Additional sheath : Present on outer wall (or single wall)
- Type of additional sheath (OW/SW) : Microporous sheath
- Type of microporous sheath (OW/SW) : Attached
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Repartition of micropores (OW/SW) : Regular
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) : No vertical intervallar element
- Relationship between rows of carcass pores and tabulae (IW) : No tabula
- 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 : None
- Link between vertical intervallar structures : None
- Intervallar cells : None
- Tabulae : none
Others informations
- Cup shapes : Subspherical
- Shape of cup bulges : None
- Number of walls : 2
- Habitus : Solitary
- Central Cavity (or internal if one wall) : Empty
- Thorny corolla : None
- Chambers : Present
- Chambers number : 1
- Other aquiferous unit : None
- Stratigraphical extension : Botoman
- Botoman : 1 ; 2 ; 3
- Geographical repartition : Russia
- Russia : Altay Sayan ; Far East
Systematic
- Orders : Capsulocyathida
- Suborders inside the Capsulocyathida : Capsulocyathina
- Famillies inside the Capsulocyathina : Tylocyathidae
External view
- Cup shapes : Subspherical
- 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) : Present
- Type of carcass external plates (OW/SW) : Bracts
- Shape of carcass external plates (OW/SW) : Arcuate
- Direction of carcass external plates (OW/SW) : ?
- 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) : Microporous sheath
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Repartition of micropores (OW/SW) : Regular
- 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
- 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) : Present
- Carcass perforations: inner wall (IW) : Pores
- 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 : None
- Link between vertical intervallar structures : None
- Intervallar cells : None
- Tabulae : none
- 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
- 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) : Present
- Type of carcass external plates (OW/SW) : Bracts
- Shape of carcass external plates (OW/SW) : Arcuate
- Direction of carcass external plates (OW/SW) : ?
- Stipules : None
- Type of morphological tubes (OW/SW) : None
- Carcass perforations: inner wall (IW) : Pores
- Relationship between rows of carcass pores and tabulae (IW) : No tabula
- 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) : Microporous sheath
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Thorny corolla : None
- Vertical intervallar structures : None
- Link between vertical intervallar structures : None
- Intervallar cells : None
- Tabulae : none
- Chambers : Present
- Chambers number : 1
- 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
- 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) : Present
- Stipules : None
- Type of morphological tubes (OW/SW) : None
- Carcass perforations: inner wall (IW) : Pores
- Relationship between rows of carcass pores and intersept (IW) : No vertical intervallar element
- Relationship between rows of carcass pores and tabulae (IW) : No tabula
- 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) : Microporous sheath
- Type of microporous sheath (OW/SW) : Attached
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Thorny corolla : None
- Vertical intervallar structures : None
- Link between vertical intervallar structures : None
- Intervallar cells : None
- Tabulae : none
- Chambers : Present
- Chambers number : 1
- 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
- Type of carcass pores (IW) : Simple
- Type of microporous sheath (OW/SW) : Attached
- Repartition of bracts on additional sheath (OW/SW) : One bract covering one micropore
- Repartition of micropores (OW/SW) : Regular
- Thorny corolla : None