Andrew Knight Posted May 4, 2018 Share Posted May 4, 2018 Recently, I have obtained a Wikipedia account so that I could update articles on some of Vermont’s geologic formations. The first of which I have made is the Ordovician age Crown Point Formation, in which I have collected many rocks completely covered in fossil invertebrates. Although I am unsure as to how far this formation goes (possibly extending into New York as well),localities known for having some of the most fossils from the formation include the towns of Panton and Isle La Motte. In creating the list, my main source of information was Paleontology of the Lake Champlain Basin in Vermont, as well as my own observations of what fossils were collected by myself and other members of the Burlington Gem & Mineral Club when we collected specimens from private quarries in Panton, VT last October. However, as my main source was written in 1962, the names and classification for some of the fauna included in the list may have names that are dubious, and the list itself if subject to change. If there is any further information that should be added to the article, please let me know, or edit the page responsibly (basing your facts/information with resources). Note: I have not added algae & porifera yet, so this post (and the Wikipedia article) will be edited. The Crown Point Formation Cephalopods Maclurites magnus Stereospyroceras champlainensis Vaginoceras oppletum Vaningenoceras sp. Proteoceras perkinsi Proteoceras pulchrum Plectoceras jason Nanno sp. Trilobites Bumastus erautusi Bumastus globosus Cryptolithus tesselatus Eoharpes antiquatus Flexicalymene senaria Isotelus gigas Pliomerops canadensis Vogdesia bearsi Echinoderms Dendrinocrinus alternatus Brachipods Atleasma multicostum Camerella varians Macrocoelia champlainensis Corals Streptelasma expansum Foerstephyllum wissleri Lambeophyllum profundum Bryozoans Praspora orientalis Rhinidictya fenestrata Stictopora ramosa 7 Link to comment Share on other sites More sharing options...
Kane Posted May 4, 2018 Share Posted May 4, 2018 In Whitely, Kloc, and Brett (2002) Trilobites of New York: An Illustrated Guide they list a few other trilobites in Crown Point Formation in both Essex County and Valcour Island, as part of the Chazy Group: Ceratocara shawi i(Valcour Island) Isotelus jacobus (Essex Cty) Thaleops longispina (Essex Cty) Cybeloides prima (Valcour Island) Ceraurinella latipygia (Valcour Island) Physemetaspis insularis (Valcour Island) I understand your focus here is on Vermont, but we also know geologic formations don't always follow state lines! Hopefully this helps and not muddles! 8 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Kane Posted May 4, 2018 Share Posted May 4, 2018 And a few more, this time from the Treatise on Invertebrate Paleontology: Part O (Trilobita) [Rev. 1997]: Hemiarges aff. H. turneri Calyptaulax annulata "Otarion" spinicaudatum Lonchodomas chaziensis Failleana calva Sphaerocoryphe goodnovi These are all reported from NY state outcrops of the Crown Point Fm. 7 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Jazfossilator Posted May 4, 2018 Share Posted May 4, 2018 This is hugely informative to me, thanks for the post! Link to comment Share on other sites More sharing options...
minnbuckeye Posted May 4, 2018 Share Posted May 4, 2018 Just saying, Maclurites magnus is not a cephalopod, it is a gastropod 7 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted May 4, 2018 Share Posted May 4, 2018 57 minutes ago, Andrew Knight said: Isotelus gigas From Vermont? I wanna see that! I guess on you guys to find! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Andrew Knight Posted May 6, 2018 Author Share Posted May 6, 2018 On 5/4/2018 at 12:07 PM, WhodamanHD said: From Vermont? I wanna see that! I guess on you guys to find! Yeah. There is a nice concentration of trilobites on a private property in Panton, VT that the Burlington Gem & Mineral Club visited last year. From that trip, I got at least two I. gigas pygidiums. Sometime, I'll try to take photos of the specimens I have collected from the Crown Point Formation (and I'll be visiting the formation next week to collect more). Link to comment Share on other sites More sharing options...
Andrew Knight Posted May 6, 2018 Author Share Posted May 6, 2018 On 5/4/2018 at 11:52 AM, minnbuckeye said: Just saying, Maclurites magnus is not a cephalopod, it is a gastropod Noted, thank you. Link to comment Share on other sites More sharing options...
Andrew Knight Posted May 6, 2018 Author Share Posted May 6, 2018 On 5/4/2018 at 11:36 AM, Kane said: And a few more, this time from the Treatise on Invertebrate Paleontology: Part O (Trilobita) [Rev. 1997]: Hemiarges aff. H. turneri Calyptaulax annulata "Otarion" spinicaudatum Lonchodomas chaziensis Failleana calva Sphaerocoryphe goodnovi These are all reported from NY state outcrops of the Crown Point Fm. That's cool! Thank you for the information. Link to comment Share on other sites More sharing options...
Andrew Knight Posted May 6, 2018 Author Share Posted May 6, 2018 On 5/4/2018 at 11:36 AM, Jazfossilator said: This is hugely informative to me, thanks for the post! You're welcome, though I forgot to add fossils from New York in the post , so I would recommend visiting the Wikipedia article on the Crown Point Formation (which I am updating). 1 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted May 6, 2018 Share Posted May 6, 2018 5 hours ago, Andrew Knight said: Yeah. There is a nice concentration of trilobites on a private property in Panton, VT that the Burlington Gem & Mineral Club visited last year. From that trip, I got at least two I. gigas pygidiums. Sometime, I'll try to take photos of the specimens I have collected from the Crown Point Formation (and I'll be visiting the formation next week to collect more). That sounds cool, I always thought Asaphids were beautiful bugs. I’ll get to collecting up there someday. Good luck with hunting up there! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
piranha Posted May 6, 2018 Share Posted May 6, 2018 On 5/4/2018 at 8:10 AM, Andrew Knight said: ...If there is any further information that should be added to the article, please let me know, or edit the page responsibly (basing your facts/information with resources)... The Crown Point Formation Trilobites Bumastus erautusi Bumastus globosus Cryptolithus tesselatus Eoharpes antiquatus Spelling and taxonomy updates: Platillaenus (=Bumastus) erastusi Bumastoides (=Bumastus) globosus Cryptolithus tessellatus Hibbertia valcourensis (=Eoharpes antiquatus) Some additional misspellings from the Wikipedia entry: Ceranurinella latipygia should be Ceraurinella latipyga Physemetaspis insularis should be Physemataspis insularis from: Shaw, F.C. 1968 Early Middle Ordovician Chazy Trilobites of New York. New York State Museum Memoir, 17:1-163 PDF LINK Whiteley, T.E., Kloc, G.J., & Brett, C.E. 2002 The Trilobites of New York. Cornell University Press, 380 pp. 5 Link to comment Share on other sites More sharing options...
Andrew Knight Posted May 7, 2018 Author Share Posted May 7, 2018 16 hours ago, piranha said: Spelling and taxonomy updates: Platillaenus (=Bumastus) erastusi Bumastoides (=Bumastus) globosus Cryptolithus tessellatus Hibbertia valcourensis (=Eoharpes antiquatus) Some additional misspellings from the Wikipedia entry: Ceranurinella latipygia should be Ceraurinella latipyga Physemetaspis insularis should be Physemataspis insularis from: Shaw, F.C. 1968 Early Middle Ordovician Chazy Trilobites of New York. New York State Museum Memoir, 17:1-163 PDF LINK Whiteley, T.E., Kloc, G.J., & Brett, C.E. 2002 The Trilobites of New York. Cornell University Press, 380 pp. Many thanks for the updates. Link to comment Share on other sites More sharing options...
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