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Bill Heim posted a new specimen. 4 years, 9 months ago
4 years, 9 months ago4 years, 9 months agoBill Heim has contributed specimen mFeM 56442 to myFOSSIL!
Bill Heim posted a new specimen. 4 years, 9 months ago
Bill Heim has contributed specimen mFeM 56442 to myFOSSIL!
Unusual enamel bumps on lower part of labial enamel does not fit with other Squalus (S. occidentalis) from location. Larger than other Squalus I have collected from site. Either a new species or a variation due to age. Not pathologic due to lack of enamel irregularities caused by pathology.
Hi Bill. I started going through the Squalus teeth I collected from the Ernst Quarry. I definitely notice two morphotypes, which are likely different species. I was wondering if you would be interested in collaborating on a paper describing them? We’ll likely have to dig into the literature a little deeper, but I think we could potentially name a new species. I collected somewhere between 25 and 30 Squalus teeth. I think at least five of them are this undescribed species.
Sounds like a plan to me. I have 17 Squalus (some collected on a previous trip a few years back), a few (3 or so) are incomplete. One is the new species and is the largest of them. I will scan them all in. I have started to collect papers already and I will send you what I have so far. I also have an extensive home library which I need to go through as well. I couldn’t get all the papers as some are behind paywalls or academic walls.
Turns out that Squalus serriculus should be Squalus occidentalis (AGASSIZ, 1856) which has precedence. There also maybe a third species there. In this type, the large hanging down bulbous enamel is replaced by a smaller enamel bulb that rather than hanging down protrudes out horizontally. It also has a very thick root with a large groove.