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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hemisphaeramminidae
Taxonomy
Hemisphaeramminidae was named by Loeblich and Tappan (1961). It is extant.
It was assigned to Astrorhizacea by Loeblich and Tappan (1988).
It was assigned to Astrorhizacea by Loeblich and Tappan (1988).
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1961 | Hemisphaeramminidae Loeblich and Tappan p. 36 |
1988 | Hemisphaeramminidae Loeblich and Tappan |
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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.
Fm. Hemisphaeramminidae Loeblich and Tappan 1961
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Subfm. Crithionininae Hofker 1972
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G. Masonella Brady 1889
G. †Nephrosphaera
G. Pseudowebbinella Shchedrina 1962
G. Verrucina Goes 1896
Subfm. Hemisphaerammininae Loeblich and Tappan 1961
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G. Ammopemphix Loeblich 1952
G. †Amphicervicis
G. †Atelikamara
G. †Colonammina
G. Iridia Heron-Allen and Earland 1914
G. †Jascottella
G. Lacustrinella Loeblich and Tappan
G. †Mesammina
G. †Saccamminis
G. †Sorosphaerella
G. †Sorostomasphaera
G. Tholosina
G. †Webbinelloidea
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
References: Loeblich and Tappan 1984, Kiessling 2004 |
Age range
Maximum range based only on fossils: base of the Tommotian to the top of the Berriasian or 525.50000 to 139.80000 Ma
Minimum age of oldest fossil (stem group age): 516.0 Ma
Minimum age of oldest fossil (stem group age): 516.0 Ma
Collections (7 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Tommotian - Atdabanian | Guinea | Hemisphaerammina sp. (7790) | |
Eifelian | Myanmar | Hemisphaerammina bradyi (25737) | |
Early/Lower Givetian | Germany | Webbinelloidea hemispherica (227413) | |
Berriasian | Russian Federation | Crithionina sp. (65700) | |
Early/Lower Valanginian | Russian Federation | Crithionina sp. (65744 65748) | |
Late/Upper Valanginian | Russian Federation | Crithionina sp. (65751) |