- Anaspida
- Ikan
- Vertebrata
- Anapsida
- Anaspida
- Fish
- Chordate
- Anaspidomorphi
- Taxonomy of fish
- Vertebrate
- Agnatha
- Chimaera
- Septentrionia
- Elasmobranchii
- Anaspida - Wikipedia
- Palaeos Vertebrates : Anaspida : Anaspida
- Anaspida - Tree of Life Web Project
- Anaspida | fossil vertebrate order | Britannica
- Anaspida Definition & Meaning - Merriam-Webster
- Anaspida | Fossiilid.info
- Anaspida - Wikispecies - Wikimedia
- Anaspida | Fossil Wiki - Fandom
- Anaspida Jawless Fossil Fish
- Histology and affinity of anaspids, and the early evolution of the ...
Anaspida GudangMovies21 Rebahinxxi LK21
Anaspida ("yang tidak memiliki pelindung") adalah sebuah kelompok punah dari ikan tak berahang yang hidup dari periode Silur awal hingga Devon akhir. Mereka secara tradisional dianggap sebagai leluhur dari lamprey, namun hal ini ditolak pada analisis filogenetika terbaru, meski beberapa analisis menunjukkan bahwa kedua kelompok ini berkerabat. Anaspida merupakan ikan air asin kecil, yang tidak memiliki zirah bertulang luar dan sirip tengah, namun memiliki sirip ekor yang distingtif.
Taksonomi
Berikut adalah taksonomi Anaspidea bedasarkan Mikko's Phylogeny Archive, Nelson, Grande and Wilson 2016 dan van der Laan 2018.
Class †Anaspida Janvier 1996 non Williston 1917
Order †Endeiolepidiformes Berg 1940
Family †Endeiolepididae Stensiö 1939 corrig.
Genus †Endeiolepis Stensiö 1939
Order †Birkeniiformes Berg 1940
Genus †Cowielepis Blom 2008
Genus †Hoburgilepis Blom, Märss & Miller 2002
Genus †Kerreralepis Blom 2012
Genus †Maurylepis Blom, Märss & Miller 2002
Genus †Rytidolepis Pander 1856
Genus †Schidiosteus Pander 1856
Genus †Silmalepis Blom, Märss & Miller 2002
Genus †Vesikulepis Blom, Märss & Miller 2002
Family †Pharyngolepididae Kiær 1924 corrig.
Genus †Pharyngolepis Kiaer 1911
Family †Pterygolepididae Obručhev 1964 corrig.
Genus †Pterygolepis Cossmann 1920 [Pterolepis Kiaer 1911 non Rambur 1838 non De Candolle ex Miquel 1840; Pterolepidops Fowler 1947]
Family †Rhyncholepididae Kiær 1924 corrig.
Genus †Rhyncholepis Kiær 1911 non Miquel 1843 non Nuttall 1841
Family †Tahulalepididae Blom, Märss & Miller 2002
Genus †Tahulalepis Blom, Märss & Miller 2002
Genus †Trimpleylepis Miller, Märss & Blom 2004
Family †Lasaniidae Goodrich 1909
Genus †Lasanius Traquair 1898
Family †Ramsaasalepididae Blom, Märss & Miller 2003
Genus †Ramsaasalepis Blom, Märss & Miller 2003
Family †Birkeniidae Traquair 1899
Genus ?†Vilkitskilepis Märss 2002
Genus †Ctenopleuron Matthew 1907
Genus †Saarolepis Robertson 1945 [Anaspis Robertson 1941 non Geoffroy 1762 non Thomson 1893]
Genus †Birkenia Traquair 1898
Family †Septentrioniidae Blom, Märss & Miller 2002
Genus †Liivilepis Blom, Märss & Miller 2002
Genus †Manbrookia Blom, Märss & Miller 2002
Genus †Ruhnulepis Blom, Märss & Miller 2002
Genus †Spokoinolepis Blom, Märss & Miller 2002
Genus †Septentrionia Blom, Märss & Miller 2002
Referensi
Kata Kunci Pencarian:
Anaspida
Anaspida
Anaspida
Anaspida - Alchetron, The Free Social Encyclopedia
Anaspida - Alchetron, The Free Social Encyclopedia
Anaspida - Alchetron, The Free Social Encyclopedia
Anaspida - Alchetron, The Free Social Encyclopedia
Palaeos Vertebrates : Anaspida : Anaspida
Anaspida | fossil vertebrate order | Britannica
Anaspida | fossil vertebrate order | Britannica
Anaspida - Wikipedia
Anaspida | Fossil Wiki | Fandom
anaspida
Daftar Isi
Anaspida - Wikipedia
Anaspids were small marine fish that lacked a heavy bony shield and paired fins, but were distinctively hypocercal. Compared to many other ostracoderms, such as the Heterostraci and …
Palaeos Vertebrates : Anaspida : Anaspida
The Anaspida are all narrow-bodied jawless vertebrates characterized by triradiate postbranchial spines. They possess rod-like body scales (when not naked), large median dorsal scales or …
Anaspida - Tree of Life Web Project
The Anaspida, or anaspids, are a group of fossil, jawless vertebrates which lived in the Silurian (-430 to -410 million years ago). Anaspids differ from most other "ostracoderms" by their dermal …
Anaspida | fossil vertebrate order | Britannica
†Order Anaspida Small streamlined fishes, body and head covered with elongate scales, nostril between eyes, gill openings lateral and arranged in slanting line, hypocercal tail bent …
Anaspida Definition & Meaning - Merriam-Webster
The meaning of ANASPIDA is a class or other division of primitive fishlike ostracoderms having a heterocercal tail and a covering of small elongated scales and known from Silurian-Devonian …
Anaspida | Fossiilid.info
Silurian and earliest Devonian birkeniid anaspids from the Northern Hemisphere. Transactions of the Royal Society of Edinburgh Earth Sciences 92, 3, 263-323. …
Anaspida - Wikispecies - Wikimedia
Dec 18, 2024 · The interrelationships and evolutionary history of anaspids. Pp. 45-58 in: Elliott, D.K., Maisey, J.G., Yu, X. & Miao, D. (eds): Morphology, Phylogeny and Paleobiogeography of …
Anaspida | Fossil Wiki - Fandom
The Anaspida are stem gnathostomes, and are classically regarded as the ancestors of lampreys. Anaspids were small marine agnathans that lacked scales and paired fins.
Anaspida Jawless Fossil Fish
One Anaspid from Canada holds the record for gills at 30 pairs! They probably behaved much like the lampreys, and most lived in freshwater environments. This fine jawless fish example is …
Histology and affinity of anaspids, and the early evolution of the ...
Mar 16, 2016 · Here we survey the histology of representatives spanning anaspid diversity and infer their generalized skeletal architecture. The anaspid dermal skeleton is composed of …