calpionellids
Differences
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| calpionellids [19/03/2023 10:22] – mike_gss | calpionellids [19/03/2023 10:23] (current) – mike_gss | ||
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| * considered by Armstrong and Brasier (2005) to be related to the ciliated (possessing tiny fronds which beat in waves used for locomotion and food-gathering) Tintinnids which are in turn considered to be protozoa (animals) | * considered by Armstrong and Brasier (2005) to be related to the ciliated (possessing tiny fronds which beat in waves used for locomotion and food-gathering) Tintinnids which are in turn considered to be protozoa (animals) | ||
| - | * hyaline calcareous wall (true tintinnids have organic walls), generally flask shaped | + | * hyaline calcareous wall (true tintinnids have organic walls and are discussed herein among the palynomorphs), generally flask shaped |
| * seldom recorded as loose specimens as they are very fragile – they are normally observed in thin-section | * seldom recorded as loose specimens as they are very fragile – they are normally observed in thin-section | ||
| * geologic range: Late Tithonian (latest Jurassic) – Early Valanginian (Early Cretaceous) | * geologic range: Late Tithonian (latest Jurassic) – Early Valanginian (Early Cretaceous) | ||
calpionellids.1679221359.txt.gz · Last modified: 19/03/2023 10:22 by mike_gss