Labechiida

Classification
Phylum: Porifera
Class: Stromatoporoidea
Order: Labechiida Kühn, 1927
Cincinnatian Families: Lophiostromatidae

Geologic Range
Ordovician – Triassic

Common Paleoecology
Labechiida is an extinct order of stationary epifaunal suspension feeders which have been interpreted to have hosted symbiotic algae in their tissues

Characteristics of the Order

  • Cysts defined by long-low to upwardly convex blister-like plates
  • Upwardly inflected pillars with rounded, irregular, or flanged cross sections
  • Mamelons and mamelon columns may occur
  • Astrohizae rarely well developed

Published Descriptions

Webby (2012):

  • Stromatoporoids with cysts usually defined by long-low to upwardly convex, blister-like plates, and intersected by continuous, upwardly inflected pillars with rounded, irregular or flanged cross-sections, and/or denticles confined to tops of cyst plates; in a few latilaminate forms, skeletal layers become much thickened; mamelons and mamelon columns may occur; astrohizae rarely well developed; microstructure usually compact and imperforate.

Stearn (1980):

  • The primary horizontal structures are dissepiments rather than laminae.

Lophiostromatidae