Fusulinida

Fusulinid limestone, Upper Pennsylvanian; Elk County, Kansas. Field of view is 3.9 cm wide. Link at source to view of entire slab.

Triticites sp. cross-section; Plattsmouth Chert; Red Oak, Iowa; Permian.

The Fusulinida is an extinct order within the Foraminifera in which the tests (shells) are composed of tightly packed, secreted microgranular calcite. Like all Forams, they are single-celled organisms. In advanced forms the test wall is differentiated into two or more layers. Loeblich and Tappan, 1988, gives a range from the Lower Silurian to the Upper Permian, with the fusulinid foraminifera going extinct with the Permian–Triassic extinction event.

单词	Fusulina
释义	Fusulina 英语百科 Fusulinida The Fusulinida is an extinct order within the Foraminifera in which the tests (shells) are composed of tightly packed, secreted microgranular calcite. Like all Forams, they are single-celled organisms. In advanced forms the test wall is differentiated into two or more layers. Loeblich and Tappan, 1988, gives a range from the Lower Silurian to the Upper Permian, with the fusulinid foraminifera going extinct with the Permian–Triassic extinction event.
随便看	long shaped rice的意思 long shareman的意思 long sheath technique的意思 long shelf life的意思 longshengense的意思 long shift的意思 long shift control的意思 long shift left的意思 long shilling的意思 long shillings的意思 Long ship的意思 longship的意思 longship的意思 long shoe horn的意思 long shoe lorn的意思 long shoot的意思 long shoots的意思 longshore的意思 Longshore bar的意思 Longshore current的意思 longshore current velocity的意思 Longshore drift的意思 longshore drift, littoral drift的意思 longshore fishery的意思 longshoreman的意思

Fusulina

Fusulinida