Rhabdolynthus

Rhabdolynthus ZHURAVLEVA, 1960b

Specimen-type: Rabdolynthus conicus holotype, ZHURAVLEVA, 1960b, pl. 4, fig. 8

Systematics:
Order: CAPSULOCYATHIDA Zhuravleva, 1964
Suborder: CAPSULOCYATHINA Zhuravleva, 1964
Family: URALOCYATHELLIDAE Zhuravleva, 1964

Rhabdolynthus Rhabdolynthus conicus ZHURAVLEVA holotype TsSGM 205/5 Botoman, Atdaban, Lena River, Yakutia, Russia Longitudinal section (ZHURAVLEVA, 1963b)

Rhabdolynthus Rhabdolynthus conicus ZHURAVLEVA holotype TsSGM 205/5 Botoman, Atdaban, Lena River, Yakutia, Russia Detail of wall in longitudinal section (inner cavity to right) (ZHURAVLEVA, 1963b)

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 : Present on outer wall (or single wall)
• Type of additional sheath (OW/SW) : Microporous sheath
• Type of microporous sheath (OW/SW) : Independent
• Repartition of bracts on additional sheath (OW/SW) : No bract on additional sheath
• 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
• Geographical repartition : Russia
• Russia : Altay Sayan ; Siberian Platform

Systematic

• Orders : Capsulocyathida
• Suborders inside the Capsulocyathida : Capsulocyathina
• Famillies inside the Capsulocyathina : Uralocyathellidae

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) : None
• 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) : No bract on additional sheath
• 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) : None
• 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) : 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) : 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) : No bract on additional sheath
• 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) : 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) : 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) : Independent
• Repartition of bracts on additional sheath (OW/SW) : No bract on additional sheath
• 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) : Independent
• Repartition of bracts on additional sheath (OW/SW) : No bract on additional sheath
• Repartition of micropores (OW/SW) : Regular
• Thorny corolla : None