Capitosauroides, Haubold, 1971
publication ID |
https://doi.org/ 10.4202/app.00392.2017 |
persistent identifier |
https://treatment.plazi.org/id/603DBA44-FF89-FFBF-FFA0-669EFEE8DD6B |
treatment provided by |
Felipe |
scientific name |
Capitosauroides |
status |
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cf. Capitosauroides isp.
Fig. 3 View Fig .
Material.—MCV 5, left manus; MCV 6, partial left manus; MCV 7, left pes; MCV 11, right manus; MCV 11/05, right manus; MCV 12, right manus and right pes, possibly of the same step cycle; MGP-PD P3; right pes; all tracks are preserved in convex hyporelief; Ulbe and Cortiana ( Italy) Lopingian.
Description.—Pentadactyl footprints showing medial functionality, relatively long, thick and straight digits with rounded terminations; and short concave palm/sole impressions. Ectaxonic pes, long about 90 mm. Smaller manus, longer than wide, showing relatively thicker digits, and less marked ectaxony. All footprints show very short digit I, digit V is proximally-positioned and usually not preserved.
Remarks.—The ectaxonic pentadactyl footprints with straight thick digits ending in rounded terminations, short concave palm/sole and a very short digit I are typical of Capitosauroides Haubold, 1971 . The pentadactyl manual tracks and the short palm/sole exclude a possible attribution to typical temnospondyl footprints such as Limnopus Marsh, 1894 . The lack of marked impressions of digit I basal pads and the short sole exclude the possible attribution to known reptiliomorph amphibian tracks such as Amphisauropus Haubold, 1970 . Digit proportions, termination and arrangement are distinct from captorhinid tracks such as Hyloidichnus Gilmore, 1927 and Merifontichnus Gand, Garric, Demathieu, and Ellenberger, 2000 . However, the lack of well-preserved digit V and of trackways hampers a definitive assignment, thus we tentatively classify these tracks as cf. Capitosauroides isp.
Capitosauroides was attributed to capitosaurid amphibians ( Haubold 1971) or non-archosauromorph amniotes ( Klein and Lucas 2010). MCV 7 was previously attributed to procolonomorph tracks indet. ( Mietto 1995). We think that these tracks are likely of non-archosauromorph amniotes, and possibly of parareptiles. Capitosauroides shows a proximally-positioned digit V not separated from the digit I–IV group, typical of other possible parareptile tracks ( Erpetopus , Pachypes , Procolophonichnium ). This would be consistent with Mietto (1995), but more studies are needed to confirm the attribution of Capitosauroides to parareptiles.
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Kingdom |
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Phylum |
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Class |
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Family |
Capitosauroides
Marchetti, Lorenzo, Belvedere, Matteo & Mietto, Paolo 2017 |
Pachypes
Leonardi, Conti, Leonardi, Mariotti, and Nicosia 1975 |
Capitosauroides
Haubold 1971 |
Capitosauroides
Haubold 1971 |
Capitosauroides
Haubold 1971 |
Erpetopus
Moodie 1929 |
Procolophonichnium
Nopcsa 1923 |