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Showing results for tags 'early jurassic'.
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From the album: Fossildude's Early Jurassic Plant Fossils
Early Jurassic, East Berlin Formation, Connecticut.© © 2014 Tim Jones
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From the album: Fossildude's Early Jurassic Fish Fossils
Front half of the early Neopterygian fish Semionotus tenuiceps from the early Jurassic (Hettangian)Shuttle Meadow Formation of Connecticut. This fish needs some prep, but appears to have the entire skull present. This is identified as an S. tenuiceps by the large "hump" directly behind the skull. I believe this is the only identifiable example of this fish in my collection.© © 2014 Tim Jones
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From the album: Fossildude's Early Jurassic Fish Fossils
3/4 fish, Redfieldius gracilis, head should be there under the shale. Should prep out well. From the Early Jurassic, Shuttle Meadow Foramtion Connecticut.© ©
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From the album: Fossildude's Early Jurassic Fish Fossils
Redfielidius gracilis missing head and tail. Early Jurassic, Shuttle Meadow Formation. Connecticut.© © 2014 Tim Jones
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From the album: Fossildude's Early Jurassic Fish Fossils
Partial back end of a Semionotus sp. Caudal, dorsal, anal, and pelvic fins are present. Early Jurassic, (Hettangian) Shuttle Meadow Formation. Connecticut. Also, note the Otozamites brevifolis pinnule, and the Diplurus longicaudatus coprolite just above the tail.© © 2014 Tim Jones
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From the album: Fossildude's Early Jurassic Fish Fossils
Partial Semionotus sp. part and counterpart. Early Jurassic, Shuttle Meadow Formation. Connecticut.© © 2014 Tim Jones
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Hello all. Haven't had much time to hunt, as life has been getting in the way. I have only been out 5 or 6 times so far this year, and only 3 times to my regular fishing hole. (Early Jurassic, Shuttle Meadow Formation, Connecticut.) My hole in the ground had caved in/slumped down over the winter, and with the spring rains, I have not had a lot of opportunity to get out to this spot. Each time I found a few things, while spending the majority of my time removing dirt from the cave-ins. The most notable find from the previous two trips was from the beginning of June. A Semionotus sp., missing the tail and the lower third of it's skull and body. Well, I had a chance to get out for a few hours this past Sunday, to hunt my Shuttle Meadow formation stomping grounds, with Pagurus. I arrived slightly earlier than Mike did, as he had a long drive, and I am much closer. I arrived around 7:20 am, and commenced to digging some of the rubble from the winter/spring cave-ins. It was a pleasant day, but the digging induced much sweating, as the temperature climbed with the humidity. Within about 15-20 minutes of digging, I uncovered a likely looking piece of shale, that must have been in the slumped material. I split it on the side, but it broke down the middle as I struck the shale with my trusty Estwing rock hammer. I commenced to splitting the 1st half - nothing notable. Then, I split the second half, and was rewarded by the sight of a lovely fish,... another Semionotus sp. this time, nearly complete, and only missing it's tail. Continued...
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From the album: Fossildude's Early Jurassic Fish Fossils
Counterpart to Semionotus sp. Early Jurassic, Shuttle Meadow Formation. Connecticut. Found as is, on June 29, 2014.© © 2014 Tim Jones
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From the album: Fossildude's Early Jurassic Fish Fossils
Semionotus sp. (possibly S. micropterus?) Early Jurassic, Shuttle Meadow Formation. Connecticut© © 2014 Tim Jones
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Has anyone heard from the academia if there is a re-assessment of putative Massospondylus synonyms allocated by Cooper (1981)? The last time I checked I found out that Gryponyx had been re-instated as valid by Vasconcelos and Yates (2004) and Yates himself now says that Gyposaurus (restricted to G. capensis) is also probably distinct from the true Massospondylus. Moreover, the discovery of Aardonyx, Ignavusaurus, Arcusaurus, the Spion Kop sauropod and "Melanorosaurus" thabanensis as well as the recognition of a second species of Massospondylus (M. kaalae) raises questions about whether or not the remaining putative synonyms of M. carinatus allocated by Cooper (1981) are referrable to Massospondylus. Any word from the academic community as to whether there is re-appraisal of putative synonyms of Massospondylus? NOTE: When synonymizing Gyposaurus, Gryponyx, Aristosaurus, Hortalotarsus, Dromicosaurus, and Aetonyx with Massospondylus, Cooper (1981) considered Lufengosaurus to be congeneric with Massospondylus. The fact that Lufengosaurus is distinct from Massospondylus provides me with another reason to consider the synonymy of Aristosaurus, Hortalotarsus, Dromicosaurus, and Aetonyx with Massospondylus questionable.
