(a.) Belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology.
(n.) The Mesozoic age or formation.
Example Sentences:
(1) The diversity of tetrapods increased from the Devonian to the Permian, remained roughly constant during the Mesozoic, and then began to increase in the late Cretaceous, and continued to do so during the Tertiary.
(2) Major groups of modern mammals have their origins in the Mesozoic Era, yet the mammalian fossil record is generally poor for that time interval.
(3) The distribution of enamel tubules, the shapes and arrangements of prisms, and the orientation of crystals in ground sections from several therapsids and mesozoic mammals have been investigated by conventional and polarizing microscopy.
(4) Simpson's monographs of 1928 and 1929, progress in the study of Mesozoic mammals has been largely dependent on new finds.
(5) In general, the small subunit nuclear sequences appear to be best for elucidating Precambrian divergences, the large subunit nuclear sequences for Paleozoic and Mesozoic divergences, and the organellar sequences of both subunits for Cenozoic divergences.
(6) Thus, it represents a primitive lineage that was present during the diversification of turtle lineages in the mid-Mesozoic era.
(7) Of the suborders present in the Paleozoic, seven are morphologically relatively simple, slowly evolving, and continued into Mesozoic and Cenozoic times to become the ancestoral lineages from which evolved several additional post-Paleozoic suborders.
(8) That’s why the BBC series Walking with Dinosaurs put many of its computer-generated creations against the backdrop of Conguillío’s “living fossils”, which date to the mesozoic age.
(9) The preliminary implication of these observations is that the mechanism of physiological color change involving MCH and its melanophore receptors evolved near the end of the Paleozoic or during the early Mesozoic, just before or early in the evolution of neopterygian (holostean and teleostean) fishes.
(10) He has lent his name to a Mesozoic reptile, a fossilised armoured fish, a species of Ecuadorian tree, one of the world's largest-pitchered carnivorous plants, and one of only four species of long-beaked echidna.
(11) The break from constant or increasing rates during the Mesozoic to decreasing rates during the Cenozoic appears to coincide with extraordinary diversification of placental mammals at the beginning of this era.
(12) A major impetus to renewed investigation came from the discoveries of Mesozoic mammals by Walter Kühne in 1939 and during the immediate post-war years.
(13) Blanding is also home to the Blanding Dinosaur Museum , which features rotating exhibits on Utah's rich Mesozoic history, including fossilised eggs and baby dinosaurs.
(14) A model of evolutionary transformation of the dentale-tympanicum complex in mesozoic mammals in outlined on the basis of the ontogenetic findings in Monodelphis and other didelphid and dasyurid marsupials.
(15) Studies of Mesozoic mammals, begun some 150 years ago, are based on rare and fragmentary fossils, principally jaws and teeth.
(16) Paleontologic and zoogeographic data speak in favour of Mesozoic origin of ixodid ticks.
Reptile
Definition:
(a.) Creeping; moving on the belly, or by means of small and short legs.
(a.) Hence: Groveling; low; vulgar; as, a reptile race or crew; reptile vices.
(n.) An animal that crawls, or moves on its belly, as snakes,, or by means of small, short legs, as lizards, and the like.
(n.) One of the Reptilia, or one of the Amphibia.
(n.) A groveling or very mean person.
Example Sentences:
(1) We have labelled single, primary auditory neurones in three reptile and one bird species.
(2) The microchromosomes are like those found in certain other primitive fishes as well as in reptiles and birds.
(3) Its adaptive value, chiefly in reptiles, remains an open question.
(4) Since it is known that fever is beneficial in infected reptiles, our experiments were viewed as an initial step in the investigation of a similar potentially beneficial effect in mammals.2.
(5) The distribution of serotonin-immunoreactive cells in the lung of 4 species of reptiles was investigated.
(6) The endocrine pancreas of this reptile is located throughout the spleen side of the organ and consists of islet-like structures, small groups of two to five cells, and single scattered endocrine cells.
(7) As in the case of other reptiles, particularly the alligator, a limited range of peptide-storing cells was found in the gut of the crocodile.
(8) There is clearly an MHC in amphibians and birds with many characteristics like the MHC of mammals (a single genetic region encoding polymorphic class I and class II molecules) and evidence for polymorphic class I and class II molecules in reptiles.
(9) Among birds 84.2% of the isolates were S. typhimurium, among mammals 62.6%, among reptiles only 26.8%.
(10) The evolution of enamel structure is dealt with here on the basis of fossil reptiles and mammals ranging from the Triassic to the present.
(11) An immunocytochemical method, using glutaraldehyde fixation and an antiserum developed against a GABA-glutaraldehyde protein conjugate, permitted direct visualization of GABAergic structures in the brain of a reptile (chameleon).
(12) Rodioimmunoassayable somatostatin (SRIF) was found in acid ethanol extracts from various parts of the gastro-entero-pancreatic (GEP) endocrine system in reptiles, amphibians, teleost bony fish, cartilaginous fish, and jawless fish, as well as in a deuterostomian invertebrate, the tunicate, Ciona intestinalis.
(13) The ultrastructure of the nasal glands of the roadrunner injected with salt and of quail drinking 200 mM NaCl was similar to that of salt glands in reptiles and the fresh-water acclimated duck.
(14) A tabulation of previously documented ovarian neoplasia in reptiles and a comparison of this cancer to those occurring in women will be discussed.
(15) the bowel of reptiles, has no changed for some hundred million years.
(16) On the basis of the amino acid sequence of cytochromes c in different species the degree of clustering and the degree of the chain asymmetry of the corresponding structural genes of DNA was found to have a general tendency towards an increase in the following order: invertebrates, fishes, amphibians, reptiles, birds, mammals.
(17) A tendency for an increase in the index of clustering of DNA was revealed in the sequence: invertebrates, fishes, amphibians, reptiles, birds, mammals.
(18) The anti-G beta, gamma antibodies recognized a 35-36-kDa protein in brain of vertebrates such as mammals (rat), avians (pigeon), amphibians (frog), fish (trout), and reptiles (turtle) but not in the invertebrates such as molluscs (snail) and insects (locust).
(19) These results reveal that some species of fishes, amphibians and mammals can act as the second intermediate host and that some species of reptiles, birds and mammals can act as a paratenic host.
(20) However, in many of these animals, including reptiles, the physiological functions and importance of the system remain unclear.