Deuterostomia
E17771
Deuterostomia is a major animal clade that includes chordates (such as vertebrates) and echinoderms, characterized by a distinctive embryonic development pattern in which the anus forms before the mouth.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Primitive Streak | 1 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
animal clade
ⓘ
clade ⓘ taxon ⓘ |
| characterizedBy |
blastopore becoming anus
ⓘ
deuterostome development ⓘ enterocoelous coelom formation ⓘ indeterminate cleavage ⓘ mouth forming secondarily ⓘ radial cleavage ⓘ |
| cleavageDetermination | indeterminate ⓘ |
| cleavagePattern | radial ⓘ |
| coelomFormation | enterocoely ⓘ |
| coelomType | true coelom ⓘ |
| contains |
all vertebrates
ⓘ
humans ⓘ most large-bodied animals ⓘ |
| contrastedWith | Protostomia ⓘ |
| domain | Eukaryota ⓘ |
| embryologicalFeature | anus forms before mouth ⓘ |
| etymology | from Greek meaning "second mouth" ⓘ |
| firstDescribedBy | Karl Grobben ⓘ |
| firstDescribedInYear | 1908 ⓘ |
| habitat | mostly marine ⓘ |
| hasDevelopmentalMode | deuterostomic ⓘ |
| higherClassification | Nephrozoa ⓘ |
| includes |
Ambulacraria
ⓘ
Chordata ⓘ Echinodermata ⓘ Hemichordata ⓘ Xenacoelomorpha ⓘ |
| includesGroup |
acorn worms
ⓘ
cephalochordates ⓘ pterobranchs ⓘ sea cucumbers ⓘ sea stars ⓘ sea urchins ⓘ tunicates ⓘ vertebrates ⓘ |
| kingdom | Animalia ⓘ |
| larvalStage | often planktonic larvae ⓘ |
| partOf | Bilateria ⓘ |
| phylogeneticPosition | major branch of Bilateria ⓘ |
| reproduction | primarily sexual reproduction ⓘ |
| sisterGroup | Protostomia ⓘ |
| subdivision |
Ambulacraria
ⓘ
Chordata ⓘ |
| symmetry | bilateral symmetry in early development ⓘ |
| taxonRank | clade ⓘ |
| unrankedSuperphylum | Deuterostomia self-link ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Primitive Streak