| 词汇 | protoconid |
| 释义 | BETA Examples of protoconidprotoconid isn’t in the Cambridge Dictionary yet. You can help! The protoconid is noticeably taller than the paraconid and very sharp. The three cusps form a right angle with each other at the protoconid, so that the trigonid is described as open. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There is usually no corresponding crest (an ectolophid) behind the protoconid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The apical cusp is the primitive protoconid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The protoconid is centrally located on the length of the crown and bears mesial and distal crests. The protocristid is more transverse than the paracristid, but the metaconid is slightly distal to the protoconid. One cusp is distal (hypoconid), pointed and tall, and the other cusp is more mesial and lingual (protostylid), and is separated from the protoconid by a notch. A crest, the metalophid, reaches from the protoconid nearly to the metaconid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two cusps at the front, the protoconid and metaconid, are isolated from each other. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Among the cusps of the trigonid, the protoconid is highest and the metaconid and paraconid are lower and about equally high. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There is a distinct ridge (anterolabial cingulum) at the outer front (anterolabial) edge of the molar, before the protoconid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The second lower molar bears a crest, the anterolophid, before the two cusps, the protoconid and metaconid, that form the front edge of the molar in some other oryzomyines. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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