The Order MicrosauriaAmerican Philosophical Society, 1978 - 211 páginas This volume discusses in particular the suggested relationship of microsaurs with reptiles and the determination of the ancestry of the various groups of living amphibians. Twenty-five general of microsaurs are recognized in this work. Contents: History of the Microsaur Concept; Definition of Micrausaurs; Methods of Study; Taxonomy; Systematic Description; Comparative Anatomy; Relationships of Microsaurs; Geological and Geographical Distribution and Biology of Microsaurs; Summary; and References Cites. Illustrations. |
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Términos y frases comunes
aïstopods AMNH amphibians anteriorly appears articulating surface Asaphestera blade bone Brachystelechus braincase Cardiocephalus caudal centra centrum cervical ČGH cheek region clavicle cleithrum configuration coronoid Crinodon dentary dentition dermal distal dorsal elements Euryodus primus exoccipital exposed extends femur FM-UR foramen forms Fort Sill fossa Fritsch genera genus Goniorhynchus grooves gymnarthrids haemal arches Hapsidopareion Hapsidopareiontidae humerus Hylonomus Hyloplesion intercentra Joggins jugal labyrinthodonts lateral view Leiocephalikon length limbs lower jaw maxilla medial Micraroter Microbrachis Microsauria microsaurs narrow neural arches Nýřany occipital condyle Odonterpeton orbits ossified ostodolepids palate palatine Pantylus parasphenoid parietal pattern Pelodosotis pelvic girdle Pennsylvanian Permian phalanges portion posterior margin posteriorly postfrontal postorbital postparietals premaxilla presacral vertebrae preserved primitive proximal pterygoid quadrate reptiles ribs ridge sacral Saxonerpeton shaft shoulder girdle skeleton skull roof species specimen squamosal stapes suture tabular teeth tetrapods tooth row Trihecaton Tuditanidae tuditanids Tuditanomorpha Tuditanus ulna ventral view
Pasajes populares
Página 2 - American Museum of Natural History, New York; British Museum (Natural History), London...
Página 201 - EH (1969) Skulls of Gymnophiona and their significance in the taxonomy of the group. Univ Kansas Sci Bull 48:585-687.
Página 201 - Vaughn, PP, 1969, Upper Pennsylvanian vertebrates from the Sangre de Cristo Formation of central Colorado: Los Angeles County Museum Contr. Science no. 164, 28 p. 1972, More vertebrates, including a new microsaur, from the Upper Pennsylvanian of central Colorado: Los Angeles County Museum Contr.
Página 70 - ... described, number 11,156 of the Museum of Paleontology of the University of Michigan, correspond very closely with those of the type specimen of Ostodolepis brevispinatus, and the specimen is referred to that genus and species. It was obtained from the University of Chicago, about 1912, in exchange, and in all probability came from the same locality and geological horizon as the type specimen.
Página 15 - The remainder of the hind limb is not preserved in any of the specimens. The limbs are fairly large in proportion to the remainder of the body, and the portions preserved are well ossified. There can be no doubt that, despite the possible retention of relics of the lateral line grooves, Asaphestera was a primarily terrestrial animal.
Página 201 - Stovall, JW, LI Price, and AS Romer. 1966. The postcranial skeleton of the giant Permian pelycosaur Cotylorhynchus romeri.
Página 13 - The squamosal and quadratojugal form the posterior margin of the sides of the skull and extend unsculptured portions over the occipital surface, as do these bones in the gymnarthrids and Pantylus. The cheek region is relatively short, with a "tall
Página 13 - The teeth are similar in size and number to those in the maxilla, but are covered externally for a large portion of their length by the dentary. This makes an exact tooth count impossible since some of the posterior teeth are apparently completely obscured.