| Brindabellaspis Temporal range: Early Devonian
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| Artist's reconstruction of B. stensioi | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †Brindabellaspida Gardiner, 1993 |
| Genus: | †Brindabellaspis Young, 1980 |
| Species: | †B. stensioi
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| Binomial name | |
| †Brindabellaspis stensioi Young, 1980
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Brindabellaspis stensioi ("Erik Stensiö's Brindabella Ranges Shield") is a placoderm with a flat, platypus-like snout from the Early Devonian of the Taemas-Wee Jasper reef in Australia.[1] When it was first discovered in 1980, it was originally regarded as a Weejasperaspid acanthothoracid due to anatomical similarities with the other species found at the reef.
According to Philippe Janvier, anatomical similarities of B. stensioi's brain and braincase with those of jawless fish, such as the Osteostraci and the Galeaspida, strongly suggest that B. stensioi, and also the antiarchs, are basal placoderms closest to the ancestral placoderm.
YouTube Encyclopedic
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How did animals with jaws evolve from their jawless ancestors?
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When Animals Learnt to Bite, the Evolution of the Jaw Bone
Transcription
References
Further reading
- Young, Gavin C. 1980, A new Early Devonian placoderm from New South Wales, Australia, with a discussion of placoderm phylogeny: Palaeontographica 167A pp. 10–76. 2 pl., 27 fig.
- Janvier, Philippe. Early Vertebrates Oxford, New York: Oxford University Press, 1998. ISBN 0-19-854047-7
- Long, John A. The Rise of Fishes: 500 Million Years of Evolution Baltimore: The Johns Hopkins University Press, 1996. ISBN 0-8018-5438-5
External links
- Palaeos article on B. stensioi Archived 2007-02-27 at the Wayback Machine
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This page was last edited on 24 February 2024, at 15:06