Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Acanthastida

Pterobranchia

Discussion

Ranked as a "group," a non-phylogenetic grade of unknown affinity to other graptoliths

Taxonomy
Acanthastida was named by Kozlowski (1949). It is not extant.

It was assigned to Graptolithina by Bulman (1970).

Subtaxa

Synonymy list
YearName and author
1949Acanthastida Kozlowski
1970Acanthastida Bulman p. V138

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
Ambulacraria
RankNameAuthor
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
subclassGraptolithina(Bronn 1849)
AcanthastidaKozlowski 1949
AcanthastidaKozlowski 1949

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.

Unr. †Acanthastida Kozlowski 1949
show all | hide all
G. †Acanthastus Kozlowski 1948
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: "sclero-protein"c
Locomotion: passively mobilec
Life habit: planktonicc
Diet: suspension feederc
Vision: blindc
Created: 2005-02-03 08:06:36
Modified: 2010-02-11 01:52:45
Source: c = class
Reference: Aberhan 1992
Collections
No collection or age range data are available