Arandaspis prionotolepis is an extinctspecies of jawless fish that lived in the Ordovician period, about 480 to 470 million years ago. Its remains were found in the Stairway Sandstone near Alice Springs, Australia in 1959, but it was not determined that they were the oldest known vertebrates until the late 1960s. Arandaspis is named after a local Aboriginal tribe, the Aranda (now currently called Arrernte).
A. prionotolepis Ritchie & Gilbert-Tomlinson, 1977
A. sp. Young, 1997
Description
Restoration
Arandaspis was about 15 cm (6 in) long, with a streamlined body covered in rows of knobbly armoured scutes. The front of the body and the head were protected by hard plates with openings for the eyes, nostrils and gills. It probably was a filter-feeder.
It had no fins; its only method of propulsion was the use of its vertically flattened tail. As a result, it probably swam in a fashion similar to a modern tadpole.[2]
^Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 23. ISBN1-84028-152-9.
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arandaspis, prionotolepis, extinct, species, jawless, fish, that, lived, ordovician, period, about, million, years, remains, were, found, stairway, sandstone, near, alice, springs, australia, 1959, determined, that, they, were, oldest, known, vertebrates, unti. Arandaspis prionotolepis is an extinct species of jawless fish that lived in the Ordovician period about 480 to 470 million years ago Its remains were found in the Stairway Sandstone near Alice Springs Australia in 1959 but it was not determined that they were the oldest known vertebrates until the late 1960s Arandaspis is named after a local Aboriginal tribe the Aranda now currently called Arrernte ArandaspisTemporal range Early Ordovician480 470 Ma PreꞒ Ꞓ O S D C P T J K Pg NFossil of Arandaspis prionotolepis from Natural History Museum in LondonScientific classificationKingdom AnimaliaPhylum ChordataInfraphylum AgnathaClass PteraspidomorphiFamily ArandaspididaeGenus ArandaspisRitchie amp Gilbert Tomlinson 1977Type species Arandaspis prionotolepisRitchie amp Gilbert Tomlinson 1977Species 1 A prionotolepis Ritchie amp Gilbert Tomlinson 1977 A sp Young 1997Description Edit Restoration Arandaspis was about 15 cm 6 in long with a streamlined body covered in rows of knobbly armoured scutes The front of the body and the head were protected by hard plates with openings for the eyes nostrils and gills It probably was a filter feeder It had no fins its only method of propulsion was the use of its vertically flattened tail As a result it probably swam in a fashion similar to a modern tadpole 2 See also EditAstraspis SacabambaspisReferences Edit Pteraspidomorphi Retrieved 28 October 2013 Palmer D ed 1999 The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals London Marshall Editions p 23 ISBN 1 84028 152 9 Media related to Arandaspis at Wikimedia Commons This article about Pteraspidomorphi is a stub You can help Wikipedia by expanding it vte This article related to an Ordovician animal is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Arandaspis amp oldid 1074062006, wikipedia, wiki, book, books, library,
