Archaeocyathan knowledge base (Cambrian)

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Auliscocyathus

Auliscocyathus DEBRENNE in ZHURAVLEVA, 1974a

Specimen-type: Spirocyathus multifidus lectotype, R. BEDFORD& W. R. BEDFORD, 1936, p. 14; fig. 65

Systematics:
Order: ARCHAEOCYATHIDA Okulitch, 1935
Suborder: SYRINGOCNEMINA Okulitch, 1935
Superfamily: AULISCOCYATHOIDEA Debrenne& A. Zhuravlev, 1992
Family: AULISCOCYATHIDAE Debrenne& A. Zhuravlev, 1992

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Outer wall

• Shape of carcass perforations openings (OW/SW) : Irregular
• 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) : Heterogeneous 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
• Presence of stipules (OW/SW) : None
• Shape of morphological tubes (OW/SW) : None
• Structure of outer carcass wall (OW/SW) : Carcass wall not well defined
• Type of additional sheath (OW/SW) : None
• Rows number of carcass perforations per intersept (OW/SW) : 1 row per intersept only
• Subdivision of carcass perforations openings (OW/SW) : Without subdivision

Inner wall

• Shape of carcass perforations openings (IW) : Irregular
• 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 not well defined
• Type of additional sheath (IW) : None
• Presence of stipules (IW) : None
• Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
• Subdivision of carcass perforations openings (IW) : Without subdivision

Intervallum

• Presence of intervallar cells : Present
• Type of links between intervallar structures : Synapticulae
• Presence of vertical intervallar structures : None
• Presence of tabulae : none
• Section shape of intervallar cells : Tetragonal
• Repartition of synapticulae : Tangential at intervallar cells
• Type of Intervallar cells : Syringe
• Number of pores rows per facet (intervallar cells) : One row of pores on each facet

Others informations

• Number of walls : 2
• Stratigraphical extension : Atdabanian ; Botoman
• Geographical repartition : Antarctica ; Australia ; Russia
• Shape of cup bulges : None
• 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 : Tuva
• Botoman : 1 ; 2 ; 3
• Atdabanian : 4
• Type of modularity : Branching by longitudinal subdivisions
• Cup shapes : Cylindrical-conical
• Type of other aquiferous unit : None

Systematic

• Orders : Archaeocyathida
• Superfamillies inside the Syringocnemina : Auliscocythoidea
• Suborders inside the Archaeocyathida : Syringocnemina
• Shape of carcass perforations openings (OW/SW) : Irregular
• Cup shapes : Cylindrical-conical
• Famillies inside the Syringocnemina : Auliscocyathidae

External view

• Cup shapes : Cylindrical-conical
• Shape of cup bulges : None
• Structure of outer carcass wall (OW/SW) : Carcass wall not well defined
• Type of modularity : Branching by longitudinal subdivisions
• Type of habitus : Solitary ; Modular
• 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) : None
• Presence of carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
• Presence of thorny corolla : None
• Type of additional sheath (OW/SW) : None
• Type of additional sheath (IW) : None
• Repartition of carcass pores (OW/SW) : Heterogeneous repartition
• Shape of carcass perforations openings (OW/SW) : Irregular
• 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 : None
• Structure of outer carcass wall (OW/SW) : Carcass wall not well defined
• Structure of inner carcass wall (IW) : Carcass wall not well defined
• Number of walls : 2
• Type of habitus : Solitary ; Modular
• 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
• Repartition of synapticulae : Tangential at intervallar cells
• Type of links between intervallar structures : Synapticulae
• Presence of intervallar cells : Present
• Presence of tabulae : none
• Type of other aquiferous unit : None
• Type of Intervallar cells : Syringe
• 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) : 1 row per intersept only
• Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
• Section shape of intervallar cells : Tetragonal

Longitudinal section

• Shape of cup bulges : None
• Structure of outer carcass wall (OW/SW) : Carcass wall not well defined
• Structure of inner carcass wall (IW) : Carcass wall not well defined
• Number of walls : 2
• Type of modularity : Branching by longitudinal subdivisions
• Type of habitus : Solitary ; Modular
• 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) : None
• Cup shapes : Cylindrical-conical
• 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 : None
• Repartition of synapticulae : Tangential at intervallar cells
• Type of links between intervallar structures : Synapticulae
• Presence of intervallar cells : Present
• Presence of tabulae : none
• Type of other aquiferous unit : None
• Type of Intervallar cells : Syringe
• Presence of chambers : None
• Type of additional sheath (OW/SW) : None
• Type of additional sheath (IW) : None
• Presence of stipules (IW) : None
• Shape of morphological tubes (OW/SW) : None
• Rows number of carcass pores per intertabula (IW) : No tabula
• Section shape of intervallar cells : Tetragonal

Oblique section

• Shape of cup bulges : None
• Structure of outer carcass wall (OW/SW) : Carcass wall not well defined
• Structure of inner carcass wall (IW) : Carcass wall not well defined
• Number of walls : 2
• Type of habitus : Solitary ; Modular
• 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 : Cylindrical-conical
• 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 : None
• Repartition of synapticulae : Tangential at intervallar cells
• Presence of intervallar cells : Present
• Presence of tabulae : none
• Presence of chambers : None
• Type of other aquiferous unit : None
• Type of Intervallar cells : Syringe
• 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
• Rows number of carcass perforations per intersept (OW/SW) : 1 row per intersept only
• Rows number of carcass perforations per intersept (IW) : 1 row per intersept only
• Shape of carcass perforations openings (IW) : Irregular
• Type of links between intervallar structures : Synapticulae
• Section shape of intervallar cells : Tetragonal
• Shape of carcass perforations openings (OW/SW) : Irregular
• Subdivision of carcass perforations openings (OW/SW) : Without subdivision
• Subdivision of carcass perforations openings (IW) : Without subdivision
• Number of pores rows per facet (intervallar cells) : One row of pores on each facet

Tangential section

• Shape of carcass perforations openings (OW/SW) : Irregular
• Size of carcass pores (OW/SW) : Uniform size
• Repartition of carcass pores (OW/SW) : Heterogeneous repartition
• Shape of carcass perforations openings (IW) : Irregular
• Presence of thorny corolla : None
• Section shape of intervallar cells : Tetragonal
• Subdivision of carcass perforations openings (OW/SW) : Without subdivision
• Subdivision of carcass perforations openings (IW) : Without subdivision
• Number of pores rows per facet (intervallar cells) : One row of pores on each facet

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Base mise à jour le 11 mars 2014 | Page générée avec Xper2 le 11 mars 2014