Yukonensis
Yukonensis ÖZDIKMEN, 2009, p. 216, nom. nov. pro Acanthopyrgus HANDFIELD, 1967
Specimen-type: Acanthopyrgus yukonensis holotype, HANDFIELD, 1967, pl. 23, fig. 1, 4
Systematics:
Order: CAPSULOCYATHIDA Zhuravleva, 1964
Suborder: CAPSULOCYATHINA Zhuravleva, 1964
Family: FRANSUASAECYATHIDAE Debrenne, 1964
Yukonensis
Yukonensis
Yukonensis
Outer wall
- Shape of carcass perforations openings (OW/SW) : Simple only
- Number of perforation on carcass bumps (OW/SW) : Simple
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- 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) : Present
- Presence of stipules (OW/SW) : None
- Shape of morphological tubes (OW/SW) : None
- Structure of outer carcass wall (OW/SW) : Carcass wall well defined
- Direction of carcass bumps perforation (OW/SW) : Downwardly opening
- Repartition types of carcass pores (OW/SW) : Straight rows of pores
- Type of additional sheath (OW/SW) : None
- Rows number of carcass perforations per intersept (OW/SW) : No vertical intervallar element
- 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) : Several rows of pores between two successive tabulae only
- 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 : Present
- Pores shape of tabulae : Simple pores
- Building of tabulae : Extensions of both walls
Others informations
- Number of walls : 2
- Stratigraphical extension : Botoman
- Geographical repartition : Canada ; USA
- 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 : Present
- Botoman : 1
- Type of chambers stack : Regular stack
- Chambers number : Several
- Cup shapes : Subspherical
- Type of other aquiferous unit : None
- Shape of initial chamber : Subspherical
- Shape of subsequent chambers : Subspherical
Systematic
- Orders : Capsulocyathida
- Famillies inside the Capsulocyathina : Fransuasaecyathidae
- 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
- Number of perforation on carcass bumps (OW/SW) : Simple
- Presence of carcass bumps: outer wall or single wall (OW/SW) : Present
- Direction of carcass bumps perforation (OW/SW) : Downwardly opening
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
- Presence of thorny corolla : Present
- Type of additional sheath (OW/SW) : None
- Type of additional sheath (IW) : None
- Shape of subsequent chambers : Subspherical
- 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
- Presence of chambers : Present
- Type of other aquiferous unit : None
- Chambers number : Several
- Type of chambers stack : Regular stack
- 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
- Number of perforation on carcass bumps (OW/SW) : Simple
- Presence of carcass bumps: outer wall or single wall (OW/SW) : Present
- 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 : Present
- Type of links between intervallar structures : None
- Presence of intervallar cells : None
- Pores shape of tabulae : Simple pores
- Presence of tabulae : Present
- 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) : None (external plates and/or inner wall)
- Rows number of carcass perforations per intersept (OW/SW) : No vertical intervallar element
- 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
- Number of perforation on carcass bumps (OW/SW) : Simple
- Presence of carcass bumps: outer wall or single wall (OW/SW) : Present
- Direction of carcass bumps perforation (OW/SW) : Downwardly opening
- Presence of carcass external plates: outer wall or single wall (OW/SW) : None
- 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
- Presence of vertical intervallar structures : None
- Presence of thorny corolla : Present
- Type of links between intervallar structures : None
- Presence of intervallar cells : None
- Building of tabulae : Extensions of both walls
- Presence of tabulae : Present
- Type of other aquiferous unit : None
- Chambers number : Several
- Type of chambers stack : Regular stack
- Presence of chambers : Present
- Type of additional sheath (OW/SW) : None
- Type of additional sheath (IW) : None
- Presence of stipules (IW) : None
- Shape of initial chamber : Subspherical
- Shape of subsequent chambers : Subspherical
- Shape of morphological tubes (OW/SW) : None
- Rows number of carcass pores per intertabula (IW) : Several rows of pores between two successive tabulae only
- Organization of tabulae inside the cup : Regular
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
- Number of perforation on carcass bumps (OW/SW) : Simple
- Presence of carcass bumps: outer wall or single wall (OW/SW) : Present
- Presence of stipules (OW/SW) : None
- Shape of morphological tubes (OW/SW) : None
- Rows number of carcass pores per intertabula (IW) : Several rows of pores between two successive tabulae only
- 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
- Presence of vertical intervallar structures : None
- Presence of thorny corolla : Present
- Presence of intervallar cells : None
- Building of tabulae : Extensions of both walls
- Pores shape of tabulae : Simple pores
- Presence of tabulae : Present
- Chambers number : Several
- Type of chambers stack : Regular stack
- Presence of chambers : Present
- 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) : None (external plates and/or inner wall)
- Type of additional sheath (OW/SW) : None
- 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
- Rows number of carcass perforations per intersept (IW) : No vertical intervallar element
- Direction of carcass bumps perforation (OW/SW) : Downwardly opening
- Shape of carcass perforations openings (IW) : Simple
- Type of links between intervallar structures : None
- Organization of tabulae inside the cup : Regular
- Shape of subsequent chambers : Subspherical
- 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
- Presence of thorny corolla : Present
- Pores shape of tabulae : Simple pores
- 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