Taxobox name Pterichthyodes status fossil fossil range Devonian image Exhibit Museum of Natural History, Ann Arbor IMG 9165.JPG image caption Pterichthyodes milleri regnum Animal ia phylum Chordata classis Placodermi genus PterichthyodesPterichthyodes is a genus of placoderm fishes from the Devonian period, now all Extinction extinct . They were one of the first species recognized for what they were, as their fossil s are common in the Old Red Sandstone formation studied by geologist s in the early 19th century. Due to their extreme divergence from modern day fish, they were a puzzle unsolved until Charles Darwin brought forward his theories on evolution . Image Pterichthyodes milleri.jpg thumb left Pterichthyodes. Image Pterichthys.jpg thumb left Pterichthys Milleri showing body armour. Image F John Series 1 Pterichthys card 30.jpg thumb left Outdated reconstruction by F. John artist F. John depicting Pterichthys as terrestrial Pterichthyodes had heavily armored heads and front bodies, while their tail ends were uncovered. As placoderms, they were members of one of the first group of animals to possess jaw s, though they had grinding plates rather than teeth. The Pterichthyodes are distinguished easily from other placoderms by their odd wing like appendage where fins would be found on a modern fish pterichthys is Ancient Greek language Greek for wing fish strictly speaking, these are not fins as we normally think of them, which evolved in another group of fish, the Actinopterygii . External links http www.palaeos.com Vertebrates Units Unit060 060.200.html Asterolepidoidei A page devoted to Asterolepidoidei, the parent group of the pterichthyodes according to cladistics portal Paleontology Category Placoderms Category Devonian fish es Pterichthyodes it Pterichthyodes ... more details
dablinks date January 2011 class ombox notice align right style margin left 0.6em style background eeeefd colspan 4 center Greek alphabet center colspan 4 center Transliteration schemes center style background e1e1e1 Greek Traditional Classical Modern a a a b b v g g gh, y d d dh e e e z z, dz z e i th th th i i i c k k l l l m m m n n n x x x o o o p p p r r r s s s t t t y u i ph ph ph, f ch kh kh ps ps ps o o ae, e ai e, ai au au af, av i ei i eu eu ef, ev ng ng ng nx nx nx nc nk g, ng nch nkh nkh mp mp b, mb nt nt d, nd oe, e oi i u ou ou, u Expand list date August 2008 This is a list of Greek words with derivatives in English . The words are in Greek alphabetic order, with tables for the 24 Greek letters, listing thousands of related English words. table id toc border 0 tr th Contents tr td Transliteration Transliteration Greek words with modern derivatives Greek Words with Modern Derivatives See also See also External links External links table NOTOC Transliteration There are considerable differences between the various transliteration s used to represent the Greek alphabet in English Language English . The table in the sidebar shows The traditional transliteration, in other words that used in Latin , representing classical Greek this is the form in which most Greek words have made their way into English A classical transliteration, commonly used to represent more accurately the pronunciation of Ancient Greek, although traditional forms are rarely used. The modern transliteration often used for Modern Greek &mdash see Transliteration of Greek into English for some variations. Rough breathing was represented in some Greek dialects by an h while in others, the h represented the vowel eta the origin of the sign is thought to be the l ... more details
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