There were many species of small pterodactyloids.

有许多种小型翼手龙。

And they were distinct from the other group of pterosaurs, known as the Pterodactyloids.

它们与另一组被称为翼手龙的翼龙不同。

It shows off the most striking difference between Rhamphorhynchoids and many Pterodactyloids.

它展示了喙嘴龙科和许多翼手龙科动物之间最显着的区别。

Although several species of Rhamphorhynchoids did have small crests made of soft tissues, large bony head crests were common among Pterodactyloids.

虽然有几种棘嘴龙确实有由软组织制成的小冠，但翼手龙中的大骨质头冠很常见。