Overview
Taxonomy
The Subclass Choreotrichia is a member of the Class Spirotrichea. Here is the complete "parentage" of Choreotrichia:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Protozoa
(Goldfuss, 1818) R. Owen, 1858
- Subkingdom: Biciliata
- Infrakingdom: Alveolata
Cavalier-Smith, 1991
- Phylum: Ciliophora
(Doflein, 1901) Copeland, 1956 - Ciliates
- Subphylum: Intramacronucleata
Lynn, 1996
- Class: Spirotrichea
Bütschli, 1889
- Subclass: Choreotrichia Small & Lynn, 1985
- Class: Spirotrichea
Bütschli, 1889
- Subphylum: Intramacronucleata
Lynn, 1996
- Phylum: Ciliophora
(Doflein, 1901) Copeland, 1956 - Ciliates
- Infrakingdom: Alveolata
Cavalier-Smith, 1991
- Subkingdom: Biciliata
- Kingdom: Protozoa
(Goldfuss, 1818) R. Owen, 1858
The Subclass Choreotrichia is further organized into finer groupings including:
- Order (2): Choreotrichida · Tintinnida
Orders
Choreotrichida
Tintinnida
Tintinnids are of the choreotrich taxon Tintinnida, distinguished by vase-shaped shells called loricae, which are mostly protein but may incorporate minute pieces of minerals. Although appearing as early as the Ordovician period, tintinnids became abundant in the fossil record during the Jurassic. Tintinnids are an important part of the fossil record because of the rarity with which most other ciliates become preserved under the conditions of the marine environment. The loricae of some tintinnids are easily preserved, giving them a relatively good fossil record. [more]
At least 31 species and subspecies belong to the Order Tintinnida.
More info about the Order Tintinnida may be found here.
Sources
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