Enseosteus | |
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Enseosteus jaeckeli | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | † Placodermi |
Order: | † Arthrodira |
Suborder: | † Brachythoraci |
Family: | † Selenosteidae |
Genus: | †
Enseosteus Jaeckel, 1919 |
Type species | |
Enseosteus jaekelli Gross, 1932
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Species | |
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Synonyms | |
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Enseosteus is an extinct genus of small selenosteid arthrodire placoderms known from the Upper Frasnian Kellwasserkalk facies of Late Devonian Germany [1] and Morocco. [2]
Enseosteus is very similar to the other Kellwasserkalk selenosteids, though, the type species, E. jaekelli, has a bulbous, knob-shaped rostrum. Denison (1978) synonymizes the genera Ottonosteus (O. jaekeli = E. hermanni) and Walterosteus with Enseosteus, claiming that the two genera are too similar to Enseosteus to merit separate genus status. [1] Rücklin (2011) agrees with Denison's synonymizing of Ottonosteus, but rejects Denison's synonymization of Walterosteus, claiming how Walterosteus has a contact between the rostral plate and the pineal plate, which Enseosteus does not. [2]