Definition of Orthodentine. Meaning of Orthodentine. Synonyms of Orthodentine

- the distinctive tooth histology of most lamniform sharks, which lack orthodentine, and is thus considered either the oldest lamniform or a sister group...
- Instead of enamel, the tooth displays a layer of cementum, orthodentine and modified orthodentine, creating a soft, easily abraded surface. The teeth of M...
- which is surrounded by a layer of orthodentine, and capped off by cementum instead of enamel. Some of the orthodentine became exposed over time as the cementum...
- similarities in tooth histology with lamniformes, including the absence of orthodentine. The oldest record of angelsharks (Squatiniformes) is Pseudorhina from...
- most lateral cusps are the most fluted. The teeth appear to be mostly orthodentine, but when viewed in cross-section, change abruptly to osteodentine. The...
- development with mackerel sharks (Lamniformes), including the absence of orthodentine, and has been suggested to the earliest known member of the Lamniformes...
- lacked enamel, with the tooth surface being composed of relatively soft orthodentine. The number of teeth in the jaws is considerably reduced in comparsion...
- is generally absent, with the tooth instead consisting of alternating orthodentine and vasodentine. A material similar to dentin forms the hard material...
- dermal denticles of these thelodonts lack a neck or base and form simple orthodentine cones. Obruchev, D. V. "Fundamentals of Paleontology. Vol. 11, Agnatha...
- have teeth fused to their jaws. However, since there is no evidence of orthodentine—an important component of fish teeth—they considered this classification...