Extinct horseshoe crab (†Mesolimulus walchi) fossil

Superdomain: Neomura

Domain: Eukaryota

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

Clade: Bilateria

Clade: Nephrozoa

(unranked): Protostomia

Superphylum: Ecdysozoa

(unranked): Panarthropoda

(unranked): Tactopoda

Phylum: Arthropoda

Subphylum: Chelicerata

Class: Merostomata

Order: Xiphosurida

Suborder: Xiphosurida

Infraorder: Limulina

Family: Limulidae

Genus: †Mesolimulus

Species: †M. walchi

 

Done