词条 | Enseosteus |
释义 |
| name = Enseosteus | image = Enseosteus jaeckeli.jpg | image_caption = E. jaeckeli | fossil_range = Late Frasnian[1] | regnum = Animalia | phylum = Chordata | subphylum = Vertebrata | classis = Placodermi | ordo = Arthrodira | subordo = Brachythoraci | infraordo = Coccosteina | superfamilia = Dinichthyloidea | familia = Selenosteidae | genus = Enseosteus | type_species = Enseosteus jaekelli | type_species_authority = Gross 1932 | subdivision_ranks = Species | subdivision =
| synonyms =
}}Enseosteus is a 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] References1. ^1 2 {{cite book|last=Denison|first=Robert|title=Handbook of Paleoichthyology, Volume 2, Placodermi|year=1978|publisher=Gustav Fischer Verlage|location=New York|isbn=9780895740274|pages=96–98}} {{Selenosteidae}}{{Portal|Paleontology}}{{Taxonbar|from=Q5379976}}{{Placoderm-stub}}2. ^1 {{cite journal|last=RÜCKLIN|first=MARTIN|title=First selenosteid placoderms from the eastern Anti-Atlas of Morocco; osteology, phylogeny and palaeogeographical implications|journal=Palaeontology|date=January 14, 2011|volume=56|issue=1|pages=25–62|doi=10.1111/j.1475-4983.2010.01026.x}} 3 : Selenosteidae|Placoderms of Europe|Placoderms of Africa |
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