Acanthostega & Eotetrapodiformes - Unionpedia, the concept map

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Difference between Acanthostega and Eotetrapodiformes

Acanthostega vs. Eotetrapodiformes

Acanthostega (meaning "spiny roof") is an extinct genus of stem-tetrapod, among the first vertebrate animals to have recognizable limbs. Eotetrapodiformes is a clade of tetrapodomorphs including the four-limbed vertebrates ("tetrapods" in the traditional sense) and their closest finned relatives, two groups of stem tetrapods called tristichopterids and elpistostegalids.

Eusthenopteron

Eusthenopteron (from εὖ, 'good', σθένος, 'strength', and πτερόν 'wing' or 'fin') is a genus of prehistoric sarcopterygian (often called "lobe-finned") fish known from several species that lived during the Late Devonian period, about 385 million years ago.

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Ichthyostega

Ichthyostega (from ἰχθῦς, 'fish' and στέγη, 'roof') is an extinct genus of limbed tetrapodomorphs from the Late Devonian of what is now Greenland.

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Panderichthys

Panderichthys is a genus of extinct sarcopterygian (lobe-finned fish) from the late Devonian period, about 380 Mya.

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Sarcopterygii

Sarcopterygii — sometimes considered synonymous with Crossopterygii — is a clade (traditionally a class or subclass) including both a group of bony fish commonly referred to as lobe-finned fish, and tetrapods.

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Stem tetrapoda

The Stem Tetrapoda are a cladistically defined group, consisting of all animals more closely related to extant four-legged vertebrates than to their closest extant relatives (the lungfish), but excluding the crown group Tetrapoda.

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Tiktaalik

Tiktaalik (Inuktitut ᑎᒃᑖᓕᒃ) is a monospecific genus of extinct sarcopterygian (lobe-finned fish) from the Late Devonian Period, about 375 Mya (million years ago), having many features akin to those of tetrapods (four-legged animals).

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