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Found 5 results

  1. Jared C

    Hadrodus hewletti (8/22/2021)

    From the album: Proudest finds

    Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."
  2. Jared C

    Hadrodus hewletti (8/22/2021)

    From the album: Proudest finds

    Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."
  3. Jared C

    Hadrodus hewletti (8/22/2021)

    From the album: Proudest finds

    Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."
  4. Jared C

    Hadrodus hewletti (8/22/2021)

    From the album: Proudest finds

    Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."
  5. Jared C

    Hadrodus hewletti (8/22/2021)

    From the album: Proudest finds

    Hadrodus hewletti was a large bony fish of the cretaceous. Finds of this variety in Hadrodus are notably uncommon. The best description I could find about Hadrodus was on the Oceans of Kansas website. Here is what they have to say about it : - "There are several things you can say about Hadrodus. Although it's not a pycnodontiform (Poyato-Ariza, F.J., and S. Wenz, 2002), it is very likely closely related to them, as shown by its deep-bodied form (seen in a partially-described Alabama specimen), the increased number and enlarged size of the vomerine and prearticular teeth, and the incisor-like anterior teeth (they're more like human incisors in pycnodonts, not as broad as in Hadrodus). Unlike pycnodontiform toothplate teeth, the teeth of Hadrodus are not arranged in regular rows, nor are some teeth especially enlarged and elongate. Hadrodus doesn't really have regular toothplates, the way pycnodonts do. The mandibular symphysis is oriented differently in the two taxa - it's nearly vertical, and anteriormost in Hadrodus, but nearly horizontal and largely medial in pycnodonts. Thurmond is probably correct to place Hadrodus in a separate family, the Hadrodontidae Thurmond, in Thurmond and Jones (1981, p. 82). Both likely ate hard-shelled prey. Both Hadrodus and the pycnodonts probably derive from the Late Jurassic/Early Cretaceous lepidotids, which were also deep-bodied bony fish, and had enlarged oral cavity teeth."
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