| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Praeconocaryomma decora
Description: Cortical shell with closelyspaced mammae. Mammae uniform in size, moderately large, high in relief, distal surface rounded, hexagonal or subcircular in outline, with long primary spine originating from center of each mamma. Primary spines slender, circular in axial section. Each mamma with five to seven short rays
connection directly to adjacent mammae of linking with rays from sur
rounding mammae. Rays single, bifurcate, or trifurcate. Mammary pore frames poorly developed, with thin bars connecting massive rays and forming small subtriangles beneath mammae. Intermammary pore frames large, regular in size, mostly triangular and tetragonal in outline.
Remarks:Praeconocaryomma decora is very similar to P. immodica Pessagno and Poission (1981) by having a cortical shell with large rounded, closely spaced mammae and by having primary spines circular in axial section. These two species can be distinguished by different pattern of intermammary pore frames.
Etymology Decorus-a-um (Latin, adj.) graceful.
| Year | Name and author |
|---|---|
| 1987 | Praeconocaryomma decora Yeh p. 39 figs. Pl. 6. fig. 15; Pl. 20, figs. 1, 2, 16 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.