| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Holteria
Taxonomy
Holteria was named by Walcott (1924) [Sepkoski's age data: Cm uMid-m Cm uMid-u Sepkoski's reference number: 16,80]. It is not extant.
It was assigned to Dorypigidae by Palmer (1954); and to Corynexochida by Sepkoski (2002).
It was assigned to Dorypigidae by Palmer (1954); and to Corynexochida by Sepkoski (2002).
Species
Synonymy list
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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer 1954 |
Diagnosis.—Cranidium like Olenoides Meek. It dif- fers from typical forms of that genus by having the anterior end of the glabella overhanging the anterior margin, a shallow occipital furrow, but no occipital spine. Pygidium with axial lobe moderately well defined, narrow, three-fourths or more the length of pygidium, consisting of four segments and a rounded terminal portion. Pleural lobes consisting of four segments; distinct pleural furrows and interpleural grooves pres- ent; pleural furrows parallel and adjacent to groove marking posterior margin of each pleural segment. First and second pleural segments rapidly expanding distally, second segment largest, and extended into moderately long, straight, posterolaterally directed marginal spines; second pair of marginal spines origi- nates posterior to end of axial lobe. Third pleural seg- ment narrower than second segment; pleural furrow and interpleural groove nearly parallel to dorsal furrow. Fourth pleural segment, when discernable, less than one-third width of third segment, poorly defined, approximately parallel to dorsal furrow. Third and fourth segments not extended into marginal spines. Posterior margin of pygidium between spines of second pleural segment, curved gently forward. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available