Perisphinctidae

Perisphinctidae is a family of Middle and Upper Jurassic discoidal ammonites in the order Ammonitida. They have a shell morphology that is mostly evolute, typically with biplicate, simple, or triplicate ribbing. Large forms have simple apertures and smooth body chambers while small forms have lappets and ribbed body chambers.

单词	Perisphinctid
释义	Perisphinctid 英语百科 Perisphinctidae Perisphinctidae is a family of Middle and Upper Jurassic discoidal ammonites in the order Ammonitida. They have a shell morphology that is mostly evolute, typically with biplicate, simple, or triplicate ribbing. Large forms have simple apertures and smooth body chambers while small forms have lappets and ribbed body chambers.
随便看	aneurysm的意思 aneurysma的意思 Aneurysm,Abdominal Aortic的意思 aneurysmal的意思 aneurysmal accentuated的意思 Aneurysmal Bone Cyst的意思 aneurysmal bone cyst of jaw的意思 Aneurysmal Bone Cysts的意思 aneurysmal bruit的意思 aneurysmal cough的意思 Aneurysmal cyst of jaw的意思 aneurysmal diathesis的意思 aneurysmal dilatation的意思 aneurysmal fibrous histiocytoma的意思 aneurysmal hematoma的意思 aneurysmal ligation的意思 aneurysm的意思 aneurysmal malformation of vein of Galen的意思 aneurysmal murmur的意思 aneurysmal phthisis的意思 aneurysmal sac的意思 Aneurysmal Subarachnoid Hemorrhage的意思 Aneurysmal Subarachnoid Hemorrhages的意思 aneurysmal threshold的意思 aneurysmal thrill的意思