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Morozovelloides
Discussion
DISCUSSION. The new genus accommodates several lower-middle Eocene species that have generally been placed in Morozovella in recent years, but which are believed to have evolved from Acarinina. The concept of Morozovelloides was developed in discussions with R.D. Norris (pers. comm., 2001).
Taxonomy
Morozovelloides was named by Pearson and Berggren (2006) [DESCRIPTION. Type of wall: Muricate, with a tendency for concentration of the muricae around the periphery and umbilical region and possessing smooth areas on the spiral side. Test morphology: Low trochospiral, generally lobulate or petaloid in outline, with concentration of bladed muricae around the periphery forming a discontinuous muricocarina. Four to eight chambers in the final whorl; aperture umbilical-extraumbilical or wholly extraumbilical.].
It was assigned to Truncorotaloididae by Pearson and Berggren (2006).
It was assigned to Truncorotaloididae by Pearson and Berggren (2006).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Morozovelloides Pearson and Berggren p. 327 fig. 342 |
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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.
G. †Morozovelloides Pearson and Berggren 2006
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†Morozovelloides bandyi Fleisher 1974
†Morozovelloides crassatus Cushman 1925
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Invalid names: Morozovella spinulosa Cushman 1927 [synonym]
†Morozovelloides lehneri Cushman and Jarvis 1929
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P.N. Pearson and W.A. Berggren 2006 | Type of wall: Muricate, with a tendency for concentration of the muricae around the periphery and umbilical region and possessing smooth areas on the spiral side. Test morphology: Low trochospiral, generally lobulate or petaloid in outline, with concentration of bladed muricae around the periphery forming a discontinuous muricocarina. Four to eight chambers in the final whorl; aperture umbilical-extraumbilical or wholly |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Loeblich and Tappan 1984, Kiessling 2004 | |||||
Age range: base of the Ypresian to the top of the Quaternary or 56.00000 to 0.00000 Ma
Collections (73 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | Maldives (Gaafaru) | Morozovella crassata (214809 214810) | |
| Ypresian | USA (California) | Globorotalia crassata (52620 52621) | |
| Eocene | South Pacific | M. crassatus (251942) | |
| Eocene - Oligocene | Indian Ocean | M. crassatus (257598) | |
| Lutetian | North Atlantic | M. bandyi (264183 264185) M. bandyi, M. crassatus (264171 264173) M. bandyi, M. lehneri, M. crassatus (264177) M. crassatus (262613 262615 264157 264161 264163 264175 264203 264207 264210 264215 264217 264233 264235 264237 264239 264241 264245 264247 264249 264251 264253) M. lehneri (264191 264201) M. lehneri, M. crassatus (262618 264159 264165 264167 264169 264181 264189) | |
| Lutetian | Senegal | M. crassatus (190953) | |
| Lutetian | Cyprus | Morozovella spinulosa (90890 90891) | |
| Lutetian - Bartonian | North Atlantic | M. crassatus (262609) | |
| Lutetian - Bartonian | Pakistan (Dera Ismail Khan) | Morozovella spinulosa (214821) | |
| Bartonian | USA (California) | Globorotalia crassata (185234) | |
| Bartonian | North Atlantic | M. crassatus (264093 264095 264101 264105 264107 264113 264117 264119 264127 264133 264135 264137 264139 264145 264149 264151 264153) M. lehneri, M. crassatus (264141 264143 264147 264155) | |
| Priabonian | North Atlantic | M. crassatus (267630) | |
| Miocene | Indian Ocean | M. bandyi (258420 258421) M. crassatus (257567) | |
| Quaternary | South Pacific | M. bandyi (255070) |