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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Macrotheca
Taxonomy
Macrotheca was named by Waagen (1880) [Sepkoski's age data: P Djhu Sepkoski's reference number: 296].
It was assigned to Toxeumorphorida by Sepkoski (2002).
It was assigned to Toxeumorphorida by Sepkoski (2002).
Species
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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.
G. †Macrotheca Waagen 1880
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†Macrotheca almgreeni Peel and Yochelson 1984
†Macrotheca wynnei Waagen 1880
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell diameter | 3 | 97.0 | 42.0 | 175.0 | 124.0 | 67.1 |
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| Source: p = phylum | |||||
| Reference: Hendy et al. 2009 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.90000 to 252.17000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | Greenland | M. almgreeni (116372 116373 116374 116375 116376 116377 116378 116379) | |
| Changhsingian | Pakistan | M. wynnei (119659) |