Publications by authors named "Hanchen Song"
There is a strong relationship between metazoan body size and extinction risk. However, the size selectivity and underlying mechanisms in foraminifera, a common marine protozoa, remain controversial. Here, we found that foraminifera exhibit size-dependent extinction selectivity, favoring larger groups (>7.
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- Nanhsiungchelyidae is a group of large turtles from the Cretaceous period, and a new species has been discovered in the Nanxiong Basin of China, characterized by a well-preserved skull and distinctive shell features.
- This new species has unique traits, including a triangular-shaped snout and wide anterolateral processes that differentiate it from other species, along with several skeletal characteristics that assist in its classification.
- The study suggests that these turtles likely adapted to their hot environment by burrowing in mud or water, and their unique shell structures may have aided in swimming and reducing drag in water.
Morphological complexity reflects the biological structure of an organism and is closely linked to its associated functions and phylogenetics. In animals with shells, ornamentation is an important characteristic of morphological complexity, and it has various functions. However, because of the variations in type, shape, density, and strength of ornamentation, a universal quantitative measure of morphological complexity for shelled animals is lacking.
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