My research in invertebrate paleontology mainly focuses on Paleozoic marine life of trilobites, one of the earliest known groups of arthropods. Particularly, I conduct field- and specimen-based analyses of late Cambrian trilobites to decipher evolutionary patterns. I find it interesting that morphological variations in different taxa of fossils can be used to understand the morphological evolution depicted by fossil record. I am attempting to put morphological variations of late Cambrian North American trilobites in context of sequence stratigraphy to test different hypotheses on effects of deposition history on morphological variability and phylogenetic ancestry of trilobites.
Srivastava, S., and Hughes, N.C., 2023, Morphology, variation, and systematics of the late Cambrian Laurentian dikelocephalid trilobite Walcottaspis vanhornei (Walcott, 1914): Journal of Paleontology, p. 1–22, doi:10.1017/jpa.2023.29.