osteolepiformadj.n.

Brit.

/ˌɒstɪəʊˈlɛpɪfɔːm/, U.S.

/ˈˌɑstioʊˈlɛpəfɔrm/

Origin: A borrowing from Latin, combined with an English element; modelled on a Latin lexical item. Etymons: Latin Osteolepis , -iform comb. form.

Etymology: < Osteolep- (in scientific Latin Osteolepis, genus name (1835 or earlier; < osteo- osteo- comb. form + ancient Greek λεπίς scale: see lepido- comb. form) + -iform comb. form, after scientific Latin Osteolepiformes, order name (L. S. Berg 1940, in Travaux de l'Inst. Zool. de l'Academie des Sci. de l'URSS 5 388). Compare earlier Osteolepidae (Cope 1889).

Palaeontology.

A. adj.

Of, relating to, or designating fishes of the extinct, chiefly Devonian, sarcopterygian order Osteolepiformes, which is thought to have been the evolutionary precursor of the tetrapods and was characterized by the possession of thick scales, one of which (at the base of the fins) was conspicuously enlarged.

ΚΠ

1942 Zool. Bidrag från Uppsala 21 649 The Porolepiform and Osteolepiform types of snout are far more closely related to each other than to the Coelacanthiform type.

1960 B. Rensch Evol. above Species Level vi. 269 Jarvik proved that the skull of osteolepiform crossopterygians is similar to that of stegocephalians and anurans.

1997 G. S. Helfman et al. Diversity of Fishes xi. 162/2 The osteolepiform fin could provide improved body support for benthic locomotion, perhaps including movement across land.

B. n.

An osteolepiform fish.

ΘΚΠ

the world > animals > fish > miscellaneous types > [noun] > miscellaneous fossil or extinct types

trachynote1848

acanthodian1852

placoganoid1863

ganocephalan1865

osteolepiform1955

1955 Sci. Monthly Mar. 143/2 (caption) An osteolepiform, Eusthenopteron foordi.

1990 M. J. Benton Vertebr. Palaeontol. iii. 48 When the osteolepiforms began to use their pectoral fins in walking, additional forces were applied.

2000 C. Tudge Variety of Life ii. xvi. 396 Thus the Devonian osteolepiform Eusthenopteron already had some of the bones in their limbs that are present in tetrapods: humerus, radius, and ulna in the pectoral fins..and femur, tibia, and fibula in the pelvic fins.

This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	osteolepiform
释义	osteolepiformadj.n. Brit. /ˌɒstɪəʊˈlɛpɪfɔːm/, U.S. /ˈˌɑstioʊˈlɛpəfɔrm/ Origin: A borrowing from Latin, combined with an English element; modelled on a Latin lexical item. Etymons: Latin Osteolepis , -iform comb. form. Etymology: < Osteolep- (in scientific Latin Osteolepis, genus name (1835 or earlier; < osteo- osteo- comb. form + ancient Greek λεπίς scale: see lepido- comb. form) + -iform comb. form, after scientific Latin Osteolepiformes, order name (L. S. Berg 1940, in Travaux de l'Inst. Zool. de l'Academie des Sci. de l'URSS 5 388). Compare earlier Osteolepidae (Cope 1889). Palaeontology. A. adj. Of, relating to, or designating fishes of the extinct, chiefly Devonian, sarcopterygian order Osteolepiformes, which is thought to have been the evolutionary precursor of the tetrapods and was characterized by the possession of thick scales, one of which (at the base of the fins) was conspicuously enlarged. ΚΠ 1942 Zool. Bidrag från Uppsala 21 649 The Porolepiform and Osteolepiform types of snout are far more closely related to each other than to the Coelacanthiform type. 1960 B. Rensch Evol. above Species Level vi. 269 Jarvik proved that the skull of osteolepiform crossopterygians is similar to that of stegocephalians and anurans. 1997 G. S. Helfman et al. Diversity of Fishes xi. 162/2 The osteolepiform fin could provide improved body support for benthic locomotion, perhaps including movement across land. B. n. An osteolepiform fish. ΘΚΠ the world > animals > fish > miscellaneous types > [noun] > miscellaneous fossil or extinct types trachynote1848 acanthodian1852 placoganoid1863 ganocephalan1865 osteolepiform1955 1955 Sci. Monthly Mar. 143/2 (caption) An osteolepiform, Eusthenopteron foordi. 1990 M. J. Benton Vertebr. Palaeontol. iii. 48 When the osteolepiforms began to use their pectoral fins in walking, additional forces were applied. 2000 C. Tudge Variety of Life ii. xvi. 396 Thus the Devonian osteolepiform Eusthenopteron already had some of the bones in their limbs that are present in tetrapods: humerus, radius, and ulna in the pectoral fins..and femur, tibia, and fibula in the pelvic fins. This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2022). < adj.n.1942
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