punctate

views updated May 08 2018

punctate
1. Applied to any structure that is marked by pores or by very small, pointlike depressions.

2.. Applied to a type of brachiopod (Brachiopoda) shell structure in which fine pores (punctae) extend from the inner to the outer surface. Three main shell types are recognized: impunctate, where the shell consists of an outer, lamellar layer of shell and an inner, fibrous layer; punctate (or endopunctate), in which the punctae extend through the shell and end beneath the organic periostracum; and pseudopunctate, in which solid rods of calcite (taleolae) are contained in the fibrous layer.

punctate

views updated May 21 2018

punctate
1. Applied to any structure that is marked by pores or by very small, point-like depressions.

2. Applied to a type of brachiopod shell structure in which fine tubes or pores extend from the inner to almost the outer surface.

punctate

views updated May 29 2018

punctate Applied to any structure that is marked by pores or by very small, point-like depressions.

punctate

views updated Jun 11 2018

punctate Applied to any structure that is marked by pores or by very small, point-like depressions.

punctate

views updated May 18 2018

punctate (punk-tayt) adj. spotted or dotted.