pelycosaurn.

Brit.

/ˈpɛlɪkə(ʊ)sɔː/, U.S.

/ˈpɛləkəˌsɔr/

Origin: A borrowing from Latin. Etymon: Latin Pelycosauria.

Etymology: < scientific Latin Pelycosauria, order name (E. D. Cope 1878, in Proc. Amer. Philos. Soc. 17 511; coined as a suborder name) < Hellenistic Greek πέλυκ- , πέλυξ bowl, cup (see pelyco- comb. form) + scientific Latin -sauria (see Sauria n.). Compare slightly earlier pelycosaurian n.Cope explains his choice of name as follows:1878 E. D. Cope in Proc. Amer. Philos. Soc. 1877–8 17 511 The ischium is a remarkable bone. It is greatly produced anteriorly and posteriorly to the acetabulum, in forming with that of the opposite side, a keeled boat-shaped body... It differs from the recent species of the order in..the remarkably developed ischia. On this account I refer to the Clepsydrops and its allies as a distinct suborder under the name of Pelycosauria.

Palaeontology.

A fossil synapsid reptile of the order Pelycosauria, known from late Carboniferous and Permian remains, and typically having some of the vertebrae extended into long bony spines supporting a sail-like crest.

ΘΚΠ

the world > animals > reptiles > extinct reptiles and dinosaurs > [noun] > Sauria > member of order Pelycosauria

pelycosaurian1880

pelycosaur1884

the world > animals > reptiles > extinct reptiles and dinosaurs > [adjective] > of order Sauria > of or relating to pelycosaur

pelycosaurian1879

pelycosaur1884

1884 E. D. Cope in Amer. Naturalist 18 1137 I afterwards showed the resemblance between the pelvis of the Pelycosaur division and that of the Monotremata.

1933 A. S. Romer Vertebr. Paleontol. xi. 222 The pelycosaur palate was constructed on a primitive pattern.

1977 A. Hallam Planet Earth 212 A bizarre characteristic of a number of the pelycosaurs was the development of a huge sail-like structure adorning the back.

2001 Illawarra (Austral.) Mercury (Nexis) 15 Dec. 16 Dimetrodons were a kind of pelycosaur—one of the more advanced reptiles, which may have used its tall sail for regulation of body temperature.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pelycosaur
释义	pelycosaurn. Brit. /ˈpɛlɪkə(ʊ)sɔː/, U.S. /ˈpɛləkəˌsɔr/ Origin: A borrowing from Latin. Etymon: Latin Pelycosauria. Etymology: < scientific Latin Pelycosauria, order name (E. D. Cope 1878, in Proc. Amer. Philos. Soc. 17 511; coined as a suborder name) < Hellenistic Greek πέλυκ- , πέλυξ bowl, cup (see pelyco- comb. form) + scientific Latin -sauria (see Sauria n.). Compare slightly earlier pelycosaurian n.Cope explains his choice of name as follows:1878 E. D. Cope in Proc. Amer. Philos. Soc. 1877–8 17 511 The ischium is a remarkable bone. It is greatly produced anteriorly and posteriorly to the acetabulum, in forming with that of the opposite side, a keeled boat-shaped body... It differs from the recent species of the order in..the remarkably developed ischia. On this account I refer to the Clepsydrops and its allies as a distinct suborder under the name of Pelycosauria. Palaeontology. A fossil synapsid reptile of the order Pelycosauria, known from late Carboniferous and Permian remains, and typically having some of the vertebrae extended into long bony spines supporting a sail-like crest. ΘΚΠ the world > animals > reptiles > extinct reptiles and dinosaurs > [noun] > Sauria > member of order Pelycosauria pelycosaurian1880 pelycosaur1884 the world > animals > reptiles > extinct reptiles and dinosaurs > [adjective] > of order Sauria > of or relating to pelycosaur pelycosaurian1879 pelycosaur1884 1884 E. D. Cope in Amer. Naturalist 18 1137 I afterwards showed the resemblance between the pelvis of the Pelycosaur division and that of the Monotremata. 1933 A. S. Romer Vertebr. Paleontol. xi. 222 The pelycosaur palate was constructed on a primitive pattern. 1977 A. Hallam Planet Earth 212 A bizarre characteristic of a number of the pelycosaurs was the development of a huge sail-like structure adorning the back. 2001 Illawarra (Austral.) Mercury (Nexis) 15 Dec. 16 Dimetrodons were a kind of pelycosaur—one of the more advanced reptiles, which may have used its tall sail for regulation of body temperature. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1884
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