| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ammarchaediscidae (disused)
Taxonomy
Ammarchaediscidae was named by Conil and Pirlet (1974) [Conil & Pirlet in Pirlet & Conil, 1974].
It was assigned to Archaediscoidea by Hayward et al. (2025).
It was assigned to Archaediscoidea by Hayward et al. (2025).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Ammarchaediscidae Conil and Pirlet |
| 2025 | Ammarchaediscidae Hayward et al. p. 1054249 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Ammarchaediscidae Conil and Pirlet 1974
show all | hide all
Invalid names: Ammarchaediscinae Conil and Pirlet 1974 [empty], Uralodiscinae Grozdilova 1993 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. Hayward et al. 2025 | rchaediscoidea with a microgranular black wall dominant, and a subordinate inner hyaline pseudofibrous and yellow outer layer (Ammarchaediscinae = Planoarchaediscinae), or remaining important (Uralodiscinae). Test entirely involute, oscillant, sygmoidal to planispiral. Aperture terminal simple.
Occurrence. Visean (MFZ10)–Serpukhovian, probably cosmopolitan. Vachard and Le Coze (2022) |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available