| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Girvanella mexicana
Taxonomy
Girvanella mexicana was named by Cooper et al. (1952) [Fossils consist of spherical to elliptical pellets measuring 0.5 to 0.9 cm in diameter.]. Its type specimen is U.S.N.M. No.115658a., an other (spherical to elliptical pellets), and it is a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Girvanella mexicana Cooper et al. pp. 24-25 figs. 3-5 |
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.
†Girvanella mexicana Cooper et al. 1952
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Cooper et al. 1952 | This species has larger tubes and thicker tube walls than any Girvanella previously described from the Cambrian. The nearest species is Girvanella problematica f. moniliformis Hoeg from the Ordovician. However, G.mexicana differs in a larger average size tube diameter, thicker walls, and less frequent branching. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|||||
|
|
||||
| Source: g = genus, p = phylum | |||||
| References: Vachard and Aretz 2004, Church 1991 | |||||