Ichnotaxon is a related term of ichnogenus.

As nouns the difference between ichnotaxon and ichnogenus

is that ichnotaxon is a taxon resulting from the attempt to classify an animal based on its footprints, burrows, or other traces while ichnogenus is (paleontology) any genus known only from trace fossils, such as footprints, coprolites or nests.

Ichnogenus is a related term of ichnotaxonomy.

In paleontology terms the difference between ichnotaxonomy and ichnogenus

is that ichnotaxonomy is the branch of taxonomy that attempts to classify an animal based on its footprints, burrows, or other traces while ichnogenus is any genus known only from trace fossils, such as footprints, coprolites or nests.

As nouns the difference between posterior and postcranium

is that posterior is (euphemistic) the buttocks while postcranium is (paleontology) the skeleton posterior to the cranium, or a portion thereof.

As an adjective posterior

is located behind, or towards the rear of an object.

As nouns the difference between cranium and postcranium

is that cranium is the skull of a vertebrate while postcranium is the skeleton posterior to the cranium, or a portion thereof.

Postcranial is a derived term of postcranium.

As an adjective postcranial

is (anatomy) relating to the portion of a vertebrate skeleton located behind and/or beneath the cranium.

As a noun postcranium is

(paleontology) the skeleton posterior to the cranium, or a portion thereof.

As nouns the difference between embryo and gastrulation

is that embryo is while gastrulation is (embryology|biology) the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells.

As nouns the difference between gastrula and gastrulation

is that gastrula is a stage in the development of embryos of most animals consisting of a two-layered sac of ectoderm and endoderm while gastrulation is the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells.

As nouns the difference between blastula and gastrulation

is that blastula is (embryology) an early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere while gastrulation is (embryology|biology) the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells.

Gastrulation is a coordinate term of morulation.

As nouns the difference between morulation and gastrulation

is that morulation is the cleavage or segmentation of the ovum by which a morula is formed while gastrulation is the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells.

Organogenesis is a coordinate term of gastrulation.

As nouns the difference between organogenesis and gastrulation

is that organogenesis is (biology) the formation and development of the organs of an organism from embryonic cells while gastrulation is (embryology|biology) the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells.