Amphioxus (55x90cm)

An Amphioxus chart (55×90 cm) is a large-format, laminated educational wall poster illustrating the structure and biological features of Amphioxus (Branchiostoma/lancelet), a primitive chordate that plays a key role in zoology and comparative anatomy education.​

Chart Features and Content

Chart Size and Material: 55 × 90 cm, typically laminated for moisture, tear, and dust resistance, tailored for classroom and laboratory wall display.​

Main Diagram: Shows a laterally compressed, transparent body with a pointed snout and tail, and outlines the following key features:

Notochord: Extends the entire length of the body and persists throughout life (a hallmark of chordates).

Dorsal tubular nerve cord: Positioned above the notochord.

Pharyngeal gill slits: Numerous, aligned pairs in the pharynx region for filter feeding and respiration.

Post-anal tail: The tail’s extension beyond the anus, another chordate characteristic.

Oral hood, myotomes (muscle blocks), fin rays, endostyle, atrium, hepatic caecum, gonads, anus, and atriopore (excretory opening).​

Functional Annotations: Labels and side notes frequently detail:

Feeding (filter feeding via cirri and pharyngeal slits)

Nervous system (simple brain, eye spots)

Closed circulatory system (lacks true heart)

Reproductive biology (separate sexes, external fertilization, larval stages).​

Educational Alignment: Designed for undergraduate and senior school biology; reinforces lessons on chordate evolution, basic anatomy, and animal diversity.​

Institutional and Catalog Use

Used widely in zoology departments, NEET/medical prep, and curriculum-aligned lessons on animal phylogeny and vertebrate precursors.

Available from Flipkart and major biological chart suppliers. These meet cataloging standards for scientific illustration, durability, and color quality.​

For digital or print catalog inclusion, select charts with scientifically accurate, clearly labeled diagrams and certified chordate feature identification.