Protospinax
| Protospinax Temporal range: Late Jurassic | |
|---|---|
 | |
| Protospinax annectens | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Hypnosqualea |
| Family: | incertae sedis |
| Genus: | Protospinax Woodward, 1919 |
Protospinax is an extinct genus of cartilaginous fish found in the Solnhofen limestones of southern Bavaria. It is a difficult taxon to accommodate in taxonomies. Formerly known from only two specimens, further museum specimens were discovered at the Museum of Comparative Zoology of Harvard University in the 1990s, having been misidentified as Squatina and Heterodontus.
Protospinax was about 1.7 m in length.[1]
References
- Marcelo R. de Carvalho & John G. Maisey (1996). "Phylogenetic relationships of the Late Jurassic shark Protospinax Woodward 1919 (Chondrichthyes: Elasmobranchii)" (PDF). In G. Arratia & G. Viohl. Mesozoic Fishes – Systematics and Paleoecology (PDF excerpt). München, Germany: Friedrich Pfeil. pp. 9–46. ISBN 3-923871-90-2.
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