Reconstruction of Nektognathus evasmithae （圖片來源：Vinther J et al. (2025)，採用  CC BY-NC 4.0  授權） Age Cambrian（"Stage 3"） 519 Ma Taxonomy Kingdom: Animalia Phylum: Chaetognatha Class: Archisagittoidea Family: Nectocarididae Genus: Nektognathus Species: Nektognathus evasmithae Morphological description Nektognathus evasmithae  is an early Cambrian nectocaridid with a body length ranging from approximately 1.6 to 5.7 cm. The body is dorsoventrally flattened and, when viewed from ab

Reconstruction of Yilingia spiciformis （感謝Chen Z提供） Age Ediacaran 551-539 Ma Taxonomy Kingdom: Animalia Clade: Bilateria Genus: Yilingia Species: Yilingia spiciformis Morphological description Yilingia spiciformis  is an elongate, strap-like bilaterian organism characterized by clear segmentation and a trilobate body organization. The entire body is composed of repeated trilobate segments, each consisting of a rhomboidal central lobe and two posteriorly directed, subtriangula

Reconstruction of Charnia masoni （圖片來源：Matteo De Stefano/MUSE，採用  CC BY-SA 3.0  授權） Age Ediacaran 574-550 Ma Taxonomy Kingdom: Animalia Phylum: Petalonamae Class: Rangeomorpha Family: Charniidae Genus: Charnia Species: Charnia masoni Morphological description Charnia masoni  is a frondose Ediacaran organism characterized by a three-tiered branching hierarchy and belongs to the extinct clade Rangeomorpha. Its overall morphology displays a gently sigmoidal curvature and exhibit

Life reconstruction of Albumares brunsae （圖片來源：Rugoconites Tenuirugosus，採用  CC BY 2.5  授權） Age Ediacaran 558-555 Ma Taxonomy Kingdom: Animalia Phylum: Trilobozoa Order: Aspidellomorpha Family: Tribrachididae Genus: Albumares Species: Albumares brunsae Morphological description Albumares brunsae  is a soft-bodied organism preserved as a positive relief fossil, exhibiting a tri-radial symmetry. The body is circular to subcircular, flattened with a low-relief profile, and compos

Life reconstruction of Facivermis yunnanicus （圖片來源：Qohelet12，採用  CC BY-SA 4.0  授權） Age Cambrian（"Stage 3"） 521-514 Ma Taxonomy Kingdom: Animalia Clade: Panarthropoda Clade: stem group Onychophora Family: Luolishaniidae Genus: Facivermis Species: Facivermis yunnanicus Morphological description Facivermis yunnanicus  is an elongated, worm-like organism measuring approximately 2.8–9 cm in total length. Its body is divided into three main regions: anterior, middle, and posterior.