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Porzana ralphorum
Taxonomy
Porzana ralphorum was named by Olson and James (1991). Its type specimen is USNM 4261 14, a limb element (right tarsometatarsus), and it is a 3D body fossil. Its type locality is Barbers Point, Oahu, which is in a Pleistocene reef, buildup or bioherm limestone in the Waimanalo Formation of Hawaii.
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Porzana ralphorum Olson and James p. 51 figs. (Fig. 17B, D, F, M |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Porzana ralphorum Olson and James 1991
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. L. Olson and H. F. James 1991 | Largerthan any of the flightless Rallidae known so far from the Hawaiian Islands except Porzana severnsi.Differs from P. severnsias follows: premaxillaryand mandibularsymphysesshorterand wider;humeruslargerand morerobust,especiallytheshaft,andbicipitalcrestmorerounded,notasangular; distal tendinalopeningof tibiotarsussmallerand more rounded,not longerin its transversediameter;tarsometatarsuswith distal foramensituatedfartherdistally |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||
Age range: Late/Upper Pleistocene or 0.12900 to 0.01170 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Pleistocene (interglacial) | USA (Hawaii) | Porzana ralphorum (type locality: 89311) |