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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hystrichosphaeridiaceae
Taxonomy
Hystrichosphaeridiaceae was named by Evitt (1963). It is extant.
It was assigned to Gonyaulacales by Evitt (1963).
It was assigned to Gonyaulacales by Evitt (1963).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Hystrichosphaeridiaceae Evitt |
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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. Hystrichosphaeridiaceae Evitt 1963
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G. †Conosphaeridium Cookson and Eisenack 1969
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†Conosphaeridium striatoconum Cookson and Eisenack 1969
G. Hystrichostrogylon Agelopoulos 1964
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range
Maximum range based only on fossils: base of the Coniacian to the top of the Early/Lower Coniacian or 89.80000 to 85.80000 Ma
Minimum age of oldest fossil (stem group age): 89.3 Ma
Minimum age of oldest fossil (stem group age): 89.3 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian - Late/Upper Turonian | Antarctica | Conosphaeridium striatoconum (150206) | |
| Late/Upper Turonian - Early/Lower Coniacian | Antarctica | Conosphaeridium striatoconus (169324 169325 169326) | |
| Coniacian | Antarctica | Conosphaeridium striatoconum (150208) | |
| Coniacian - Early/Lower Santonian | Antarctica | Conosphaeridium striatoconus (169332 169334 169335 169337 169338 169339 169340 169341 169342 169343 169344 169346 169348 169349 169351) | |
| Santonian - Campanian | Antarctica | Conosphaeridium striatoconus (150509) |